TY - JOUR A1 - Jafarnezhadgero, AmirAli A1 - Ghorbanloo, Farshad A1 - Fatollahi, Amir A1 - Dionisio, Valdeci Carlos A1 - Granacher, Urs T1 - Effects of an elastic resistance band exercise program on kinetics and muscle activities during walking in young adults with genu valgus BT - A double-blinded randomized controlled trial JF - Clinical biomechanics : a journal affiliated to the International Society of Biomechanics and the American Society of Biomechanics N2 - Background: This double-blinded randomized-controlled-trial aimed to identify the effects of an elastic band resistance training on walking kinetics and muscle activities in young adults with genu valgus. Methods: Forty-two male young adults aged 22.5(2.7) years with genu valgus were randomly allocated to two experimental groups. The intervention group (n = 21) conducted a 14-weeks elastic band resistance training. The control group was passive during the intervention period and received the same treatment after the post-tests. Pre and post training, ground reaction forces and lower limb muscle activities were recorded during walking. Findings: Results revealed significant group-by-time interactions for peak medial ground reaction force and timeto-peak for posterior ground reaction force in favor of the intervention group (p < 0.012; d = 0.83-3.76). Resistance training with elastic bands resulted in significantly larger peak medial ground reaction force (p < 0.001; d = 1.45) and longer time-to-peak for posterior ground reaction force (p < 0.001; d = 1.85). Finding showed significant group-by-time interactions for peak positive free moment amplitudes in favor of the intervention group (p < 0.001; d = 1.18-2.02). Resistance training resulted in a lower peak positive free moment amplitude (p = 0.001; d = 1.46). With regards to muscle activities, the analysis revealed significant group-by time interactions for rectus femoris and gluteus medius activities during the push-off phase in favor of the intervention group (p < 0.038; d = 0.68-0.89). Resistance training induced higher rectus femoris (p = 0.038; d = 0.84) and gluteus medius (p = 0.007; d = 0.54) activities. Interpretation: This study proved the effectiveness of resistance training using elastic bands on kinetics and muscle activities during walking in male adults with genu valgus disorder. Given that this training regime is low cost, effective, and easy-to-administer, we suggest that it should be implemented as a rehabilitative or preventive means for young adults with genu valgus. KW - Free moment KW - Gait KW - Knee valgus KW - Loading rate KW - Theraband training Y1 - 2021 U6 - https://doi.org/10.1016/j.clinbiomech.2020.105215 SN - 0268-0033 SN - 1879-1271 VL - 81 PB - Elsevier Science CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Jafarnezhadgero, Amir Ali A1 - Piran Hamlabadi, Milad A1 - Sajedi, Heidar A1 - Granacher, Urs T1 - Recreational runners who recovered from COVID-19 show different running kinetics and muscle activities compared with healthy controls JF - Gait & posture : official journal of Gait and Clinical Movement Analysis Society, European Society of Movement Analysis in Adults and Children, Società Italiana di Analisi del Movimento in Clinica, International Society for Posture and Gait Research N2 - Background: Social isolation through quarantine represents an effective means to prevent COVID-19 infection. A negative side-effect of quarantine is low physical activity. Research question: What are the differences of running kinetics and muscle activities of recreational runners with a history of COVID-19 versus healthy controls? Methods: Forty men and women aged 20-30 years participated in this study and were divided into two experimental groups. Group 1 (age: 24.1 +/- 2.9) consisted of participants with a history of COVID-19 (COVID group) and group 2 (age: 24.2 +/- 2.7) of healthy age and sex-matched controls (controls). Both groups were tested for their running kinetics using a force plate and electromyographic activities (i.e., tibialis anterior [TA], gastrocnemius medialis [Gas-M], biceps femoris [BF], semitendinosus [ST], vastus lateralis [VL], vastus medialis [VM], rectus femoris [RF], gluteus medius [Glut-M]). Results: Results demonstrated higher peak vertical (p = 0.029; d=0.788) and medial (p = 0.004; d=1.119) ground reaction forces (GRFs) during push-off in COVID individuals compared with controls. Moreover, higher peak lateral GRFs were found during heel contact (p = 0.001; d=1.536) in the COVID group. COVID-19 individuals showed a shorter time-to-reach the peak vertical (p = 0.001; d=3.779) and posterior GRFs (p = 0.005; d=1.099) during heel contact. Moreover, the COVID group showed higher Gas-M (p = 0.007; d=1.109) and lower VM activity (p = 0.026; d=0.811) at heel contact. Significance: Different running kinetics and muscle activities were found in COVID-19 individuals versus healthy controls. Therefore, practitioners and therapists are advised to implement balance and/or strength training to improve lower limbs alignment and mediolateral control during dynamic movements in runners who recovered from COVID-19. KW - Quarantine KW - Ground reaction force KW - Electromyography Y1 - 2022 U6 - https://doi.org/10.1016/j.gaitpost.2021.11.002 SN - 0966-6362 SN - 1879-2219 VL - 91 SP - 260 EP - 265 PB - Elsevier CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Jafarnezhadgero, Amir Ali A1 - Fatollahi, Amir A1 - Granacher, Urs T1 - Eight weeks of exercising on sand has positive effects on biomechanics of walking and muscle activities in individuals with pronated feet BT - a randomized double-blinded controlled trial JF - Sports : open access journal N2 - This study aimed to investigate the effects of eight weeks of barefoot running exercise on sand versus control on measures of walking kinetics and muscle activities in individuals with diagnosed pronated feet. Sixty physically active male adults with pronated feet were randomly allocated into an intervention or a waiting control group. The intervention group conducted an 8-weeks progressive barefoot running exercise program on sand (e.g., short sprints) with three weekly sessions. Pre and post intervention, participants walked at a constant speed of 1.3 m/s +/- 5% on a 18 m walkway with a force plate embedded in the middle of the walkway. Results showed significant group-by-time interactions for peak impact vertical and lateral ground reaction forces. Training but not control resulted in significantly lower peak impact vertical and lateral ground reaction forces. Significant group-by-time interactions were observed for vastus lateralis activity during the loading phase. Training-induced increases were found for the vastus lateralis in the intervention but not in the control group. This study revealed that the applied exercise program is a suitable means to absorb ground reaction forces (e.g., lower impact vertical and lateral peaks) and increase activities of selected lower limb muscles (e.g., vastus lateralis) when walking on stable ground. KW - flat foot KW - free moment KW - gait KW - loading rate KW - training Y1 - 2022 U6 - https://doi.org/10.3390/sports10050070 SN - 2075-4663 VL - 10 IS - 5 PB - MDPI CY - Basel ER - TY - JOUR A1 - Jafarnezhadgero, Amir Ali A1 - Anvari, Maryam A1 - Granacher, Urs T1 - Long-term effects of shoe mileage on ground reaction forces and lower limb muscle activities during walking in individuals with genu varus JF - Clinical biomechanics N2 - Background: Shoe mileage is an important factor that may influence the risk of sustaining injuries during walking. The aims of this study were to examine the effects of shoe mileage on ground reaction forces and activity of lower limb muscles during walking in genu varus individuals compared with controls. Methods: Fifteen healthy and 15 genu varus females received a new pair of running shoes. They were asked to wear these shoes over 6 months. Pre and post intervention, mechanical shoe testing was conducted and ground reaction forces and muscle activities of the right leg were recorded during walking at preferred gait speed. Findings: Significant group-by-time interactions were found for shoe stiffness, antero-posterior and vertical impact peak. We observed higher shoe stiffness and lower impact peaks after intervention in both groups with larger effect sizes in genu varus. Significant group-by-time interactions were identified for vastus medialis (loading phase) and rectus femoris (loading and push-off). For vastus medialis, significant decreases were found from pre-to-post during the loading phase in the control group. Rectus femoris activity was higher post intervention during the loading and push-off phases in both groups with larger effect sizes in genu varus. Interpretation: Our findings indicate that the observed changes in ground reaction forces are more prominent in genu varus individuals. Together with our findings on shoe stiffness, it seems appropriate to change running shoes after an intense wearing time of 6 months, particularly in genu varus individuals. KW - footwear KW - electromyography KW - loading rate KW - patients Y1 - 2020 U6 - https://doi.org/10.1016/j.clinbiomech.2020.01.006 SN - 0268-0033 SN - 1879-1271 VL - 73 SP - 55 EP - 62 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Hortobagyi, Tibor A1 - Deak, Dorina A1 - Farkas, Dora A1 - Blenyesi, Eszter A1 - Torok, Katalin A1 - Granacher, Urs A1 - Tollar, Jozsef T1 - Effects of exercise dose and detraining duration on mobility at late midlife BT - a randomized clinical trial JF - Gerontology N2 - Background: Office workers near retirement tend to be sedentary and can be prone to mobility limitations and diseases. We examined the dose effects of exergaming volume and duration of detraining on motor and cognitive function in office workers at late midlife to reduce sedentariness and mobility limitations. Methods: In an assessor-blinded randomized trial, 160 workers aged 55-65 years performed physically active video games in a nonimmersive form of virtual reality (exergaming) in small, supervised groups for 1 h, 1x, 2x, or 3x/week for 8 weeks followed by detraining for 8 and 16 weeks. Exergaming comprises high-intensity, full-body sensorimotor coordination, balance, endurance, and strengthening exercises. The primary outcome was the 6-minute walk test (6MWT), and secondary outcomes were body mass, self-reported physical activity, sleep quality, Berg Balance Scale, Short Physical Performance Battery, fast gait speed, dynamic balance, heart rate recovery after step test, and 6 cognitive tests. Results: The 3 groups were not different in any of the outcomes at baseline (all p > 0.05). The outcomes were stable and had acceptable reliability (intraclass correlation coefficients >= 0.334) over an 8-week control period. Training produced an inverted U-shaped dose response of no (1x), most (2x), and medium (3x/week) effects of exergaming volume in most motor and selected cognitive outcomes. The distance walked in the 6MWT (primary outcome) increased most (94 m, 19%, p < 0.05), medium (57 m, 12%, p < 0.05), and least (4 m, 1%) after exergaming 2x, 3x, or 0x (control) (all different p < 0.05). The highest responders tended to retain the exercise effects over 8 weeks of detraining, independent of training volume. This maintenance effect was less consistent after 16 weeks of detraining. Conclusion: Less was more during training and lasted longer after detraining. A medium dose volume of exergaming produced the largest clinically meaningful improvements in mobility and selected cognitive tests in 60-year-old office workers with mild mobility limitations and intact cognition. KW - exercise KW - dose response KW - walking capacity KW - cognitive function Y1 - 2021 U6 - https://doi.org/10.1159/000513505 SN - 0304-324X SN - 1423-0003 VL - 67 IS - 4 SP - 403 EP - 414 PB - Karger CY - Basel ER - TY - JOUR A1 - Herold, Fabian A1 - Theobald, Paula A1 - Gronwald, Thomas A1 - Rapp, Michael A. A1 - Müller, Notger Germar T1 - Going digital – a commentary on the terminology used at the intersection of physical activity and digital health JF - European review of aging and physical activity N2 - In recent years digital technologies have become a major means for providing health-related services and this trend was strongly reinforced by the current Coronavirus disease 2019 (COVID-19) pandemic. As it is well-known that regular physical activity has positive effects on individual physical and mental health and thus is an important prerequisite for healthy aging, digital technologies are also increasingly used to promote unstructured and structured forms of physical activity. However, in the course of this development, several terms (e.g., Digital Health, Electronic Health, Mobile Health, Telehealth, Telemedicine, and Telerehabilitation) have been introduced to refer to the application of digital technologies to provide health-related services such as physical interventions. Unfortunately, the above-mentioned terms are often used in several different ways, but also relatively interchangeably. Given that ambiguous terminology is a major source of difficulty in scientific communication which can impede the progress of theoretical and empirical research, this article aims to make the reader aware of the subtle differences between the relevant terms which are applied at the intersection of physical activity and Digital Health and to provide state-of-art definitions for them. KW - Digital Health KW - Electronic Health KW - Mobile Health KW - Telehealth KW - Telemedicine KW - Physical activity KW - Physical training KW - Aging Y1 - 2022 U6 - https://doi.org/10.1186/s11556-022-00296-y SN - 1861-6909 VL - 19 PB - Springer CY - Berlin ; Heidelberg ER - TY - JOUR A1 - Henschke, Jakob A1 - Zecher, Mahli Megan A1 - Mayer, Frank A1 - Engel, Tilman T1 - Contralateral repeated bout effect following preconditioning exercises BT - a systematic review JF - Sport sciences for health N2 - Background Recent studies indicate the existence of a repeated bout effect on the contralateral untrained limb following eccentric and isometric contractions. Aims This review aims to summarize the evidence for magnitude, duration and differences of this effect following isometric and eccentric preconditioning exercises. Methods Medline, Cochrane, and Web of science were searched from January 1971 until September 2020. Randomized controlled trials, case-control studies and cross-sectional studies were identified by combining keywords and synonyms (e.g., "contralateral", "exercise", "preconditioning", "protective effect"). At least two of the following outcome parameters were mandatory for study inclusion: strength, muscle soreness, muscle swelling, limb circumference, inflammatory blood markers or protective index (relative change of aforementioned measures). Results After identifying 1979 articles, 13 studies were included. Most investigations examined elbow flexors and utilized eccentric isokinetic protocols to induce the contralateral repeated bout effect. The magnitude of protection was observed in four studies, smaller values of the contralateral when compared to the ipsilateral repeated bout effect were noted in three studies. The potential mechanism is thought to be of neural central nature since no differences in peripheral muscle activity were observed. Time course was examined in three investigations. One study showed a smaller protective effect following isometric preconditioning when compared to eccentric preconditioning exercises. Conclusions The contralateral repeated bout effect demonstrates a smaller magnitude and lasts shorter than the ipsilateral repeated bout effect. Future research should incorporate long-term controlled trials including larger populations to identify central mechanisms. This knowledge should be used in clinical practice to prepare immobilized limbs prospectively for an incremental load. KW - musculoskeletal physiological phenomena KW - muscle damage KW - adaptation KW - Crossover KW - muscle soreness KW - isometric contraction Y1 - 2021 U6 - https://doi.org/10.1007/s11332-021-00804-0 SN - 1824-7490 SN - 1825-1234 VL - 18 IS - 1 SP - 1 EP - 10 PB - Soringer Italia CY - Milan ER - TY - JOUR A1 - Helm, Norman A1 - Prieske, Olaf A1 - Mühlbauer, Thomas A1 - Krüger, Tom A1 - Granacher, Urs T1 - Effects of judo-specific resistance training on kinetic and electromyographic parameters of pulling exercises in judo athletes T1 - Effekte eines judospezifischen Messplatztrainings auf kinetische und elektromyografische Parameter des Anreißens bei Wurfeingangsbewegungen von Judoka JF - Sportverletzung, Sportschaden : Grundlagen, Prävention, Rehabilitation N2 - Background In judo, rapid force production during pulling movements is an important component of athletic performance, which is why this capacity needs to be specifically exercised in judo. This study aimed at examining the effects of a judo-specific resistance training program using a judo ergometer system (PTJ) versus a traditional resistance training regime using a partner (PTP) on kinetics and muscle activity of judo-specific pulling exercises. Method Twenty-four male judo athletes (age: 22 +/- 4 years, training experience: 15 +/- 3 years) were randomly assigned to two groups. In a crossover design, the first group completed a 4-week PTJ followed by four weeks of PTP (each with three sessions per week). The second group conducted PTP prior to PTJ. PTJ and PTP were completed in addition to regular training. Before, 4 weeks and 8 weeks after training, tests were conducted to assess judo-specific pulling kinetics (i.e. maximal force, rate of force development [RFD], mechanical work) and electromyographic (EMG) shoulder/trunk muscle activity (i.e. biceps brachii muscle, deltoid muscle, trapezius muscle, erector spinae muscle) during pulling movements using a judo ergometer as well as unspecific strength tests (i.e. bench-pull, pull-ups). Results The statistical analysis revealed that in both groups ergometer pulling kinetics (p<.05, 0.83 <= d <= 1.77) and EMG activity (p<.05; 1.07 <= d <= 2.25) were significantly enhanced following 8 weeks of training. In addition, significantly larger gains in RFD, mechanical work, and EMG activity (i.e. deltoid muscle, erector spinae muscle, trapezius muscle) were found following PTJ compared to PTP (p<.05, 1.25 <= d <= 2.79). No significant enhancements were observed with the unspecific strength tests. Conclusion Our findings indicate that PTJ is superior to PTP regarding training-induced improvements in force production and muscle activity during judo-specific pulling exercises. Performance enhancements may partly be attributed to neural adaptations. No transfer effects on unspecific strength tests were detected following PTJ and PTP. N2 - Hintergrund Schnellkräftige Wurfeingangsbewegungen stellen im Judo entscheidende Voraussetzungen für den Wettkampferfolg dar, weshalb das Training der Anrissbewegung ein zentrales Element des judospezifischen Trainings darstellt. Das Ziel der Studie bestand darin, die Effekte eines Anrisstrainings mit einem Judoergometer-System (ATJ) gegenüber einem tradierten Anrisstraining mit Partner (ATP) auf kinetische und elektromyografische Parameter des Anreißens bei Wurfeingangsbewegungen von Judoka zu untersuchen. Methode Männliche leistungsorientierte Judoka (N = 24, Alter: 22 ± 4 Jahre; Trainingserfahrung: 15 ± 3 Jahre) wurden randomisiert in zwei Gruppen aufgeteilt. Im Crossover-Design absolvierte die erste Gruppe über vier Wochen ein ATJ gefolgt von vier Wochen ATP (je 3x/ Woche). Die zweite Gruppe führte beide Trainingsvarianten in umgekehrter Reihenfolge durch. ATJ und ATP wurden zusätzlich zum bestehenden Training absolviert. Vor dem Training sowie nach vier und nach acht Wochen Training wurden Tests zur Erfassung kinetischer Parameter (dynamisch-realisierte Maximalkraft, Explosivkraft, mechanische Arbeit) und elektromyografischer (EMG) Schulter-/ Rumpfmuskelaktivitäten (M. biceps brachii, M. deltoideus, M. trapezius, M. erector spinae) für die Hub- und Zugarmseite bei Wurfeingangsbewegungen am Judoergometer sowie sportartunspezifische Krafttests (d. h. Liegend-Anreißen, Klimmziehen) durchgeführt. Ergebnisse Die Ergebnisse der statistischen Analyse ergaben über den gesamten Interventionszeitraum (8 Wochen) für beide Trainingsgruppen signifikante Verbesserungen der kinetischen Parameter (p <,05; 0,83 ≤d≤ 1,77) und EMG-Aktivitäten (p <,05; 1,07 ≤d≤ 2,25). Darüber hinaus zeigten sich größere Zuwachsraten in der Explosivkraft, der mechanischen Arbeit und den Schulter-/Rumpfmuskelaktivitäten (M. deltoideus, M. erector spinae, M. trapezius) zugunsten von ATJ im Vergleich zu ATP (p <,05; 1,25 ≤d≤ 2,79). Für die sportartunspezifischen Kraftwerte wurden keine signifikanten Veränderungen festgestellt. Schlussfolgerung Die vorliegenden Ergebnisse zeigen, dass ATJ gegenüber ATP größere Steigerungsraten von kinetischen und elektromyografischen Parametern des Anreißens bei Wurfeingangsbewegungen von Judoka bewirkt. Die trainingsbedingten Leistungssteigerungen scheinen zumindest teilweise auf neuronalen Anpassungen zu beruhen. KW - combat sport KW - athletic performance KW - specific strength training KW - surface electromyography KW - Kampfsport KW - sportliche Leistung KW - spezifisches Krafttraining KW - Oberflächenelektromyografie Y1 - 2018 U6 - https://doi.org/10.1055/s-0043-122781 SN - 0932-0555 SN - 1439-1236 VL - 32 IS - 2 SP - 134 EP - 142 PB - Thieme CY - Stuttgart ER - TY - JOUR A1 - Hammami, Raouf A1 - Chaabene, Helmi A1 - Kharrat, Fatma A1 - Werfelli, Hanen A1 - Duncan, Michael A1 - Rebai, Haithem A1 - Granacher, Urs T1 - Acute effects of different balance exercise types on selected measures of physical fitness in youth female volleyball players JF - BMC Sports Science, Medicine and Rehabilitation N2 - Background Earlier studies have shown that balance training (BT) has the potential to induce performance enhancements in selected components of physical fitness (i.e., balance, muscle strength, power, speed). While there is ample evidence on the long-term effects of BT on components of physical fitness in youth, less is known on the short-term or acute effects of single BT sessions on selected measures of physical fitness. Objective To examine the acute effects of different balance exercise types on balance, change-of-direction (CoD) speed, and jump performance in youth female volleyball players. Methods Eleven female players aged 14 years participated in this study. Three types of balance exercises (i.e., anterior, posterolateral, rotational type) were conducted in randomized order. For each exercise, 3 sets including 5 repetitions were performed. Before and after the performance of the balance exercises, participants were tested for their static balance (center of pressure surface area [CoP SA] and velocity [CoP V]) on foam and firm surfaces, CoD speed (T-Half test), and vertical jump height (countermovement jump [CMJ] height). A 3 (condition: anterior, mediolateral, rotational balance exercise type) × 2 (time: pre, post) analysis of variance was computed with repeated measures on time. Results Findings showed no significant condition × time interactions for all outcome measures (p > 0.05). However, there were small main effects of time for CoP SA on firm and foam surfaces (both d = 0.38; all p < 0.05) with no effect for CoP V on both surface conditions (p > 0.05). For CoD speed, findings showed a large main effect of time (d = 0.91; p < 0.001). However, for CMJ height, no main effect of time was observed (p > 0.05). Conclusions Overall, our results indicated small-to-large changes in balance and CoD speed performances but not in CMJ height in youth female volleyball players, regardless of the balance exercise type. Accordingly, it is recommended to regularly integrate balance exercises before the performance of sport-specific training to optimize performance development in youth female volleyball players. KW - Postural stability KW - Conditioning activity KW - Short‐term effect KW - Team sports KW - Youth Y1 - 2021 U6 - https://doi.org/10.1186/s13102-021-00249-5 SN - 1758-2555 VL - 13 PB - BioMed Central CY - London ER - TY - JOUR A1 - Hagoort, Iris A1 - Vuillerme, Nicolas A1 - Hortobágyi, Tibor A1 - Lamoth, Claudine J. C. T1 - Outcome-dependent effects of walking speed and age on quantitative and qualitative gait measures JF - Gait & posture N2 - Background: Walking speed predicts many clinical outcomes in old age. However, a comprehensive assessment of how walking speed affects accelerometer based quantitative and qualitative gait measures in younger and older adults is lacking. Research question: What is the relationship between walking speed and quantitative and qualitative gait outcomes in younger and older adults? Methods: Younger (n = 27, age: 21.6) and older participants (n = 27, age: 69.5) completed 340 steps on a treadmill at speeds of 0.70 to a maximum of 1.75 m.s(-1). We used generalized additive mixed models to determine the relationship between walking speed and quantitative (stride length, stride time, stride frequency and their variability) and qualitative (stride regularity, stability, smoothness, symmetry, synchronization, predictability) gait measures extracted from trunk accelerations. Results: The type of relationship between walking speed and the majority of gait measures (quantitative and qualitative) was characterized as logarithmic, with more prominent speed-effects at speeds below 1.20 m.s(-1). Changes in quantitative measures included shorter strides, longer stride times, and a lower stride frequency, with more variability at lower speeds independent of age. For qualitative measures, we found a decrease in gait symmetry, stability and regularity in all directions with decreasing speeds, a decrease in gait predictability (Vertical, V, anterior-posterior, AP) and stronger gait synchronization (AP-mediolateral, ML, AP-V), and direction dependent effects of gait smoothness, which decreased in V direction, but increased in AP and ML directions with decreasing speeds. We found outcome-dependent effects of age on the quantitative and qualitative gait measures, with either no differences between age-groups, age-related differences that existed regardless of speed, and age-related differences in the type of relationship with walking speed. Significance: The relationship between walking speed and quantitative and qualitative gait measures, and the effects of age on this relationship, depends on the type of gait measure studied. KW - Gait quality and quantity KW - Aging KW - Walking speed KW - Treadmill KW - Generalized KW - additive mixed models Y1 - 2022 U6 - https://doi.org/10.1016/j.gaitpost.2022.01.001 SN - 0966-6362 SN - 1879-2219 VL - 93 SP - 39 EP - 46 PB - Elsevier CY - Clare ER - TY - JOUR A1 - Hadzic, Miralem A1 - Eichler, Sarah A1 - Völler, Heinz A1 - Salzwedel, Annett T1 - Akzeptanz und Nutzung eines telemedizinischen Rehabilitationsprogramms für Patienten mit Knie- oder Hüft-Totalendoprothese JF - Bewegungstherapie und Gesundheitssport : B & G ; offizielles Organ des Deutschen Verbandes für Gesundheitssport und Sporttherapie e.V. (DVGS) N2 - Objective of the study: The long-term use of telemedical programs depends not only on their effectiveness, but also on patient acceptance and satisfaction. The effectiveness of telemedical exercise therapy for patients after implantation of a total knee or hip prosthesis and subsequent rehabilitation has already been examined in a randomized controlled study. This article focuses on the patient's acceptance and usage behaviour with regard to the tele-rehabilitation system. Methodology: 48 patients (53 +/- 7 years; 26 women; 35 hip/13 knee TEP) were questioned after a three-month telemedical movement therapy using the Telehealth Usability Questionnaire (TUQ) to determine the acceptance of the technology. The questionnaire consisted of 21 items (seven-point Likert scale) in six scales (e. g. usefulness, quality of interactions, reliability). System-specific questions were summarized on an additional scale. The results were presented as a percentage of the scale (100 estimates complete agreement). The usage behaviour was examined using system-generated process data for training and integrated voice/text messages. Results: The TUQ scales "Usefulness" (Mdn 95.2) and "Ease of use and learnability" (Mdn 92.9) were rated the highest, while "Reliability" (Mdn 57.1) and "Quality of interactions" ( Mdn 71.4) showed the lowest levels. The system-specific scale was placed in the upper quartile (Mdn 85.7). In the first week, 39 patients (81%) and in the second 45 patients (94%) performed at least one training exercise with the system. The proportion of active patients (>= 1 exercise/week) decreased in the further course to 75% (n=36) in the 7th week and 48% (n=23) in the 12th week. The system communication options were initially used frequently after the start of therapy: in the first week, 42 patients (88%) sent messages, 47 patients (98%) received messages from their therapist respectively. In week 7, 9 (19%) and 13 (27%) patients sent/received messages via the system respectively. Conclusion: Most of the patients perceived telemedical movement therapy as useful and user-friendly and seemed to be largely satisfied with the system. This proved to be well suited for short-term use of 6 to 8 weeks following subsequent rehabilitation. N2 - Ziel der Studie: Die langfristige Nutzung telemedizinischer Angebote hängt nicht nur von deren Wirksamkeit, sondern auch von der Akzeptanz und Zufriedenheit der Patienten ab. Für eine telemedizinische Bewegungstherapie für Patienten nach Implantation einer Knie- oder Hüft-Totalendoprothese und erfolgter Anschlussrehabilitation wurde die Wirksamkeit bereits in einer randomisiert kontrollierten Studie untersucht. Dieser Beitrag fokussiert die Akzeptanz und das Nutzungsverhalten der Patienten hinsichtlich des eingesetzten telerehabilitativen Systems. Methodik: Zur Erfassung der Technikakzeptanz wurden 48 Patienten (53±7 Jahre; 26 Frauen; 35 Hüft-/13 Knie-TEP) im Anschluss an eine dreimonatige telemedizinische Bewegungstherapie mittels des Telehealth Usability Questionnaire befragt. Der Fragebogen besteht aus 21 Items (siebenstufige Likert-Skala) in sechs Skalen (z. B. Nützlichkeit, Qualität der Interaktionen, Verlässlichkeit). In einer zusätzlichen Skala wurden systemspezifische Fragen zusammengefasst. Die Ergebnisse wurden als Skalenprozent (100 ≙ vollkommene Zustimmung) dargestellt. Das Nutzungsverhalten wurde anhand systemgenerierter Prozessdaten zum Training sowie zu integrierten Sprach-/Textnachrichten untersucht. Ergebnisse: Die TUQ-Skalen „Nützlichkeit“ (Mdn 95,2) sowie „Benutzerfreundlichkeit und Erlernbarkeit“ (Mdn 92,9) wurden am höchsten bewertet, während die „Verlässlichkeit“ (Mdn 57,1) und „Qualität der Interaktionen“ (Mdn 71,4) die geringsten Ausprägungen zeigten. Die systemspezifische Skala wurde im oberen Quartil eingeordnet (Mdn 85,7). In der ersten Woche führten 39 Patienten (81%), in der zweiten 45 Patienten (94%) mindestens eine Trainingsübung mit dem System durch. Der Anteil aktiver Patienten (≥1 Übung/Woche) reduzierte sich im weiteren Verlauf auf 75% (n=36) in der 7. Woche und 48% (n=23) in der 12. Woche. Die systemeigenen Kommunikationsmöglichkeiten wurden nach Therapiestart zunächst häufig genutzt: in der ersten Woche sendeten 42 Patienten (88%) Nachrichten, 47 Patienten (98%) erhielten Nachrichten von ihrem Therapeuten. In der 7. Woche sendeten/erhielten 9 (19%) bzw. 13 (27%) Patienten Nachrichten über das System. Schlussfolgerung: Die Patienten nahmen die telemedizinische Bewegungstherapie überwiegend als nützlich und benutzerfreundlich wahr und schienen im Wesentlichen mit dem System zufrieden, das sich damit für den kurzfristigen Einsatz von 6 bis 8 Wochen im Anschluss an eine Anschlussrehabilitation als gut geeignet zeigte. T2 - Acceptance and use of a telemedical rehabilitation program for patients with total knee or hip replacement KW - Telemedicine KW - tele-rehabilitation KW - acceptance KW - use KW - orthopaedic KW - rehabilitation KW - Telemedizin KW - Telerehabilitation KW - Akzeptanz KW - Nutzung KW - orthopädische Rehabilitation Y1 - 2022 U6 - https://doi.org/10.1055/a-1714-3629 SN - 1613-0863 SN - 1613-3269 VL - 38 IS - 01 SP - 20 EP - 25 PB - Thieme CY - Stuttgart ER - TY - JOUR A1 - El-Ashker, Said A1 - Chaabene, Helmi A1 - Negra, Yassine A1 - Prieske, Olaf A1 - Granacher, Urs T1 - Cardio-Respiratory Endurance Responses Following a Simulated 3 x 3 Minutes Amateur Boxing Contest in Elite Level Boxers JF - Sports N2 - This study aimed at examining physiological responses (i.e., oxygen uptake [VO2] and heart rate [HR]) to a semi-contact 3 x 3-min format, amateur boxing combat simulation in elite level male boxers. Eleven boxers aged 21.4 +/- 2.1 years (body height 173.4 +/- 3.7, body mass 74.9 +/- 8.6 kg, body fat 12.1 +/- 1.9, training experience 5.7 +/- 1.3 years) volunteered to participate in this study. They performed a maximal graded aerobic test on a motor-driven treadmill to determine maximum oxygen uptake (VO2max), oxygen uptake (VO2AT) and heart rate (HRAT) at the anaerobic threshold, and maximal heart rate (HRmax). Additionally, VO2 and peak HR (HRpeak) were recorded following each boxing round. Results showed no significant differences between VO2max values derived from the treadmill running test and VO2 outcomes of the simulated boxing contest (p > 0.05, d = 0.02 to 0.39). However, HRmax and HRpeak recorded from the treadmill running test and the simulated amateur boxing contest, respectively, displayed significant differences regardless of the boxing round (p < 0.01, d = 1.60 to 3.00). In terms of VO2 outcomes during the simulated contest, no significant between-round differences were observed (p = 0.19, d = 0.17 to 0.73). Irrespective of the boxing round, the recorded VO2 was >90% of the VO2max. Likewise, HRpeak observed across the three boxing rounds were >= 90% of the HRmax. In summary, the simulated 3 x 3-min amateur boxing contest is highly demanding from a physiological standpoint. Thus, coaches are advised to systematically monitor internal training load for instance through rating of perceived exertion to optimize training-related adaptations and to prevent boxers from overreaching and/or overtraining. KW - aerobic metabolism KW - physiological strain KW - striking combat sports KW - elite athletes Y1 - 2018 U6 - https://doi.org/10.3390/sports6040119 SN - 2075-4663 VL - 6 IS - 4 PB - MDPI CY - Basel ER - TY - JOUR A1 - Dobberke, Jeanette A1 - Baritello, Omar A1 - Hadzic, Miralem A1 - Völler, Heinz A1 - Eichler, Sarah A1 - Salzwedel, Annett T1 - Test-retest reliability of center of pressure measures for postural control assessment in older cardiac patients JF - Gait & posture : official journal of Gait and Clinical Movement Analysis Society (GCMAS) and European Society of Movement Analysis in Adults and Children (ESMAC) N2 - Background Elderly patients are a growing population in cardiac rehabilitation (CR). As postural control declines with age, assessment of impaired balance is important in older CR patients in order to predict fall risk and to initiate counteracting steps. Functional balance tests are subjective and lack adequate sensitivity to small differences, and are further subject to ceiling effects. A quantitative approach to measure postural control on a continuous scale is therefore desirable. Force plates are already used for this purpose in other clinical contexts, therefore could be a promising tool also for older CR patients. However, in this population the reliability of the assessment is not fully known. Research question Analysis of test-retest reliability of center of pressure (CoP) measures for the assessment of postural control using a force plate in older CR patients. Methods 156 CR patients (> 75 years) were enrolled. CoP measures (path length (PL), mean velocity (MV), and 95% confidence ellipse area (95CEA)) were analyzed twice with an interval of two days in between (bipedal narrow stance, eyes open (EO) and closed (EC), three trials for each condition, 30 s per trial), using a force plate. For test-retest reliability estimation absolute differences (& UDelta;: T0-T1), intraclass correlation coefficients (ICC) with 95% confidence intervals, standard error of measurement and minimal detectable change were calculated. Results Under EO condition ICC were excellent for PL and MV (0.95) and good for 95CEA (0.88) with & UDelta; of 10.1 cm (PL), 0.3 cm/sec (MV) and 1.5 cm(2 )(95CEA) respectively. Under EC condition ICC were excellent (> 0.95) for all variables with larger & UDelta; (PL: 21.7 cm; MV: 0.7 cm/sec; 95CEA: 2.4 cm(2)) Significance In older CR patients, the assessment of CoP measures using a force plate shows good to excellent test retest reliability. KW - Cardiac rehabilitation KW - Older patients KW - Postural control KW - Test-retest KW - reliability KW - Force plate Y1 - 2022 U6 - https://doi.org/10.1016/j.gaitpost.2021.12.011 SN - 0966-6362 SN - 1879-2219 VL - 92 SP - 359 EP - 363 PB - Elsevier Science CY - Amsterdam ER - TY - JOUR A1 - Davies, Michael J. A1 - Drury, Benjamin A1 - Ramirez-Campillo, Rodrigo A1 - Chaabene, Helmi A1 - Moran, Jason T1 - Effect of plyometric training and biological maturation on jump and change of direction ability in female youth JF - Journal of strength and conditioning research : the research journal of the NSCA / National Strength & Conditioning Association N2 - Biological maturation has been shown to affect male youths' responses to plyometric training (PT). However, to date, no researcher has examined the effect of maturation on the effects of PT in female youth. We undertook the first controlled intervention study to examine this, focusing on adaptive responses to countermovement jump (CMJ), reactive strength index (RSI), and change of direction (COD) performance in groups of female youth divided by maturation status (years from peak height velocity [PHV]). The training program lasted 7 weeks with subjects undertaking 2 sessions of PT per week. In the mid-PHV group, there was a small increase (effect size; 90% confidence interval = 0.40; -0.23 to 1.03) in CMJ performance. No changes were observed in the post-PHV group (0.02; -0.68 to 0.72). For RSI, there was a moderate increase in the mid-PHV group (0.94; 0.29-1.59) with only a trivial increase in the post-PHV group (0.06; -0.65 to 0.76). The intervention exerted no positive effect on COD performance in any group. Plyometric training seems to enhance CMJ and RSI in female youth, although the magnitude of adaptation could be affected by maturation status. A twice-per-week program of multidirectional jumping and hopping, with bilateral and unilateral components, can be used as a preparatory precursor to physical education classes or recreational sport. KW - girls KW - exercise KW - sport KW - athlete Y1 - 2021 U6 - https://doi.org/10.1519/JSC.0000000000003216 SN - 1064-8011 SN - 1533-4287 VL - 35 IS - 10 SP - 2690 EP - 2697 PB - Lippincott Williams & Wilkins CY - Philadelphia ER - TY - JOUR A1 - Chaabene, Helmi A1 - Negra, Yassine A1 - Moran, Jason A1 - Prieske, Olaf A1 - Sammoud, Senda A1 - Ramirez-Campillo, Rodrigo A1 - Granacher, Urs T1 - Plyometric training improves not only measures of linear speed, power, and change-of-direction speed but also repeated sprint ability in young female handball players JF - Journal of strength and conditioning research : the research journal of the NSCA N2 - This study examined the effects of an 8-week plyometric training (PT) program on components of physical fitness in young female handball players. Twenty-one female adolescent handball players were assigned to an experimental group (EG, n = 12; age = 15.9 +/- 0.2 years) or an active control group (CG, n = 9, age = 15.9 +/- 0.3 years). While EG performed plyometric exercises in replacement of some handball-specific drills, CG maintained the regular training schedule. Baseline and follow-up tests were performed for the assessment of linear speed (i.e., 5-, 10-, and 20-m time), change-of-direction (CoD) speed (i.e., T-test time), muscle power (i.e., countermovement jump [CMJ] height and reactive strength index [RSI]), and repeated sprint ability (RSA) (RSA total time [RSA(total)], RSA best time [RSA(best)], and RSA fatigue index [RSA(FI)]). Data were analyzed using magnitude-based inferences. Within-group analyses for the EG revealed moderate-to-large improvements for the 5-m (effect size [ES] = 0.81 [0.1-1.5]), 10-m sprint time (ES = 0.84 [0.1-1.5]), RSI (ES = 0.75 [0.1-1.4]), RSA(FI) (ES = 0.65 [0.0-1.3]), and T-test time (ES = 1.46 [0.7-2.2]). Trivial-to-small ES was observed for RSA(best) (ES = 0.18 [-0.5 to 0.9]), RSA(total) (ES = 0.45 [-0.2 to 1.1]), 20-m sprint time (ES = 0.56 [-0.1 to 1.2]), and CMJ height (ES = 0.57 [-0.1 to 1.3]). For the CG, within-group analyses showed a moderate performance decline for T-test time (ES = -0.71 [-1.5 to 0.1]), small decreases for 5-m sprint time (ES = -0.46 [-1.2 to 0.3]), and a trivial decline for 10-m (ES = -0.10 [-0.9 to 0.7]) and 20-m sprint times (ES = -0.16 [-0.9 to 0.6]), RSA(total) (ES = 0.0 [-0.8 to 0.8]), and RSA(best) (ES = -0.20 [-0.9 to 0.6]). The control group achieved trivial-to-small improvements for CMJ height (ES = 0.10 [-0.68 to 0.87]) and RSI (ES = 0.30 [-0.5 to 1.1]). In conclusion, a short-term in-season PT program, in replacement of handball-specific drills, is effective in improving measures of physical fitness (i.e., linear/CoD speed, jumping, and RSA) in young female handball players. KW - stretch-shortening cycle KW - physical fitness KW - young athletes Y1 - 2021 U6 - https://doi.org/10.1519/JSC.0000000000003128 SN - 1064-8011 SN - 1533-4287 VL - 35 IS - 8 SP - 2230 EP - 2235 PB - Lippincott Williams & Wilkins CY - Philadelphia ER - TY - JOUR A1 - Busch, Aglaja A1 - Trounson, Karl M. A1 - Browne, Peter A1 - Robertson, Sam T1 - Effects of lower limb light-weight wearable resistance on running biomechanics JF - Journal of biomechanics : affiliated with the American Society of Biomechanics, the European Society of Biomechanics, the International Society of Biomechanics, the Japanese Society for Clinical Biomechanics and Related Research and the Australian and New Zealand Society of Biomechanics N2 - Wearable resistance allows individualized loading for sport specific movements and can lead to specific strength adaptations benefiting the athlete. The objective was to determine biomechanical changes during running with lower limb light-weight wearable resistance. Fourteen participants (age: 28 +/- 4 years; height: 180 +/- 8 cm; body mass: 77 +/- 6 kg) wore shorts and calf sleeves of a compression suit allowing attachment of light loads. Participants completed four times two mins 20-m over-ground shuttle running bouts at 3.3 m*s(-1) alternated by three mins rest. The first running bout was unloaded and the other three bouts were under randomised loaded conditions (1%, 3% and 5% additional loading of the individual body mass). 3D motion cameras and force plates recorded kinematic and kinetic data at the midpoint of each 20-m shuttle. Friedman-test for repeated measures and linear mixed effect model analysis were used to determine differences between the loading conditions (alpha = 0.05). Increased peak vertical ground reaction force (2.7 N/kg to 2.74 N/kg), ground contact time (0.20 s to 0.21 s) and decreased step length (1.49 m to 1.45 m) were found with additional 5 % body mass loading compared to unloaded running (0.001 > p < 0.007). Marginally more knee flexion and hip extension and less plantarflexion was seen with higher loading. Differences in the assessed parameters were present between each loading condition but accompanied by subject variability. Further studies, also examining long term effects, should be conducted to further inform use of this training tool. KW - Kinematic KW - Kinetic KW - Weighted running KW - External loading KW - 3D motion KW - capture Y1 - 2022 U6 - https://doi.org/10.1016/j.jbiomech.2021.110903 SN - 0021-9290 SN - 1873-2380 VL - 130 PB - Elsevier Science CY - New York, NY [u.a.] ER - TY - JOUR A1 - Brand, Ralf A1 - Nosrat, Sanaz A1 - Späth, Constantin A1 - Timme, Sinika T1 - Using COVID-19 Pandemic as a Prism: A Systematic Review of Methodological Approaches and the Quality of Empirical Studies on Physical Activity Behavior Change JF - Frontiers in Sports and Active Living N2 - Background: The COVID-19 pandemic has highlighted the importance of scientific endeavors. The goal of this systematic review is to evaluate the quality of the research on physical activity (PA) behavior change and its potential to contribute to policy-making processes in the early days of COVID-19 related restrictions. Methods: We conducted a systematic review of methodological quality of current research according to PRISMA guidelines using Pubmed and Web of Science, of articles on PA behavior change that were published within 365 days after COVID-19 was declared a pandemic by the World Health Organization (WHO). Items from the JBI checklist and the AXIS tool were used for additional risk of bias assessment. Evidence mapping is used for better visualization of the main results. Conclusions about the significance of published articles are based on hypotheses on PA behavior change in the light of the COVID-19 pandemic. Results: Among the 1,903 identified articles, there were 36% opinion pieces, 53% empirical studies, and 9% reviews. Of the 332 studies included in the systematic review, 213 used self-report measures to recollect prepandemic behavior in often small convenience samples. Most focused changes in PA volume, whereas changes in PA types were rarely measured. The majority had methodological reporting flaws. Few had very large samples with objective measures using repeated measure design (pre and during the pandemic). In addition to the expected decline in PA duration, these studies show that many of those who were active prepandemic, continued to be active during the pandemic. Conclusions: Research responded quickly at the onset of the pandemic. However, most of the studies lacked robust methodology, and PA behavior change data lacked the accuracy needed to guide policy makers. To improve the field, we propose the implementation of longitudinal cohort studies by larger organizations such as WHO to ease access to data on PA behavior, and suggest those institutions set clear standards for this research. Researchers need to ensure a better fit between the measurement method and the construct being measured, and use both objective and subjective measures where appropriate to complement each other and provide a comprehensive picture of PA behavior. KW - meta-science KW - exercise KW - methods KW - quality KW - study designs KW - standards Y1 - 2022 U6 - https://doi.org/10.3389/fspor.2022.864468 SN - 2624-9367 VL - 4 SP - 1 EP - 17 PB - Frontiers CY - Lausanne, Schweiz ER - TY - JOUR A1 - Brand, Johannes A1 - Franke, Vanessa T1 - Verantwortungseigentum und Profifußball BT - eine Organisationsform für werteorientierte Fußballvereine? JF - Zeitschrift für Sport und Recht N2 - Verantwortungseigentum ist mittlerweile mehr als ein Nischenthema innerhalb der Rechtswissenschaft und unternehmerischen Praxis. Unternehmen werden in Verantwortungseigentum gegründet oder umgewandelt, also die persönlichen Gewinne der Gesellschafter perpetuiert und die Nachfolge reguliert. Auch der Profifußball stellt sich immer wieder die Frage nach der richtigen Balance zwischen Gewinnstreben und Gemeinwohl. Das wirft Fragen nach alternativen Gestaltungsmöglichkeiten auf, für die das Verantwortungseigentum eine Lösung bieten könnte. Y1 - 2023 UR - https://beck-online.beck.de/Bcid/Y-300-Z-SPURT-B-2023-S-196-N-1 SN - 0945-3873 VL - 30 IS - 3 SP - 196 EP - 201 PB - Beck CY - München ER - TY - JOUR A1 - Brahms, Clemens Markus A1 - Hortobágyi, Tibor A1 - Kressig, Reto W. A1 - Granacher, Urs T1 - The Interaction between mobility status and exercise specificity in older adults JF - Exercise and sport sciences reviews N2 - Many adults older than 60 yr experience mobility limitations. Although physical exercise improves older adults' mobility, differences in baseline mobility produce large variations in individual responses to interventions, and these responses could further vary by the type and dose of exercise. Here, we propose an exercise prescription model for older adults based on their current mobility status. KW - exercise prescription KW - training intervention KW - walking speed KW - activities KW - of daily living KW - elderly Y1 - 2021 U6 - https://doi.org/10.1249/JES.0000000000000237 SN - 0091-6331 SN - 1538-3008 VL - 49 IS - 1 SP - 15 EP - 22 PB - Lippincott Williams & Wilkins CY - Hagerstown, Md. ER - TY - JOUR A1 - Behrens, Martin A1 - Gube, Martin A1 - Chaabene, Helmi A1 - Prieske, Olaf A1 - Zenon, Alexandre A1 - Broscheid, Kim-Charline A1 - Schega, Lutz A1 - Husmann, Florian A1 - Weippert, Matthias T1 - Fatigue and human performance BT - an updated framework JF - Sports medicine : an international journal of applied medicine and science in sport and exercise N2 - Fatigue has been defined differently in the literature depending on the field of research. The inconsistent use of the term fatigue complicated scientific communication, thereby limiting progress towards a more in-depth understanding of the phenomenon. Therefore, Enoka and Duchateau (Med Sci Sports Exerc 48:2228-38, 2016, [3]) proposed a fatigue framework that distinguishes between trait fatigue (i.e., fatigue experienced by an individual over a longer period of time) and motor or cognitive task-induced state fatigue (i.e., self-reported disabling symptom derived from the two interdependent attributes performance fatigability and perceived fatigability). Thereby, performance fatigability describes a decrease in an objective performance measure, while perceived fatigability refers to the sensations that regulate the integrity of the performer. Although this framework served as a good starting point to unravel the psychophysiology of fatigue, several important aspects were not included and the interdependence of the mechanisms driving performance fatigability and perceived fatigability were not comprehensively discussed. Therefore, the present narrative review aimed to (1) update the fatigue framework suggested by Enoka and Duchateau (Med Sci Sports Exerc 48:2228-38, 2016, [3]) pertaining the taxonomy (i.e., cognitive performance fatigue and perceived cognitive fatigue were added) and important determinants that were not considered previously (e.g., effort perception, affective valence, self-regulation), (2) discuss the mechanisms underlying performance fatigue and perceived fatigue in response to motor and cognitive tasks as well as their interdependence, and (3) provide recommendations for future research on these interactions. We propose to define motor or cognitive task-induced state fatigue as a psychophysiological condition characterized by a decrease in motor or cognitive performance (i.e., motor or cognitive performance fatigue, respectively) and/or an increased perception of fatigue (i.e., perceived motor or cognitive fatigue). These dimensions are interdependent, hinge on different determinants, and depend on body homeostasis (e.g., wakefulness, core temperature) as well as several modulating factors (e.g., age, sex, diseases, characteristics of the motor or cognitive task). Consequently, there is no single factor primarily determining performance fatigue and perceived fatigue in response to motor or cognitive tasks. Instead, the relative weight of each determinant and their interaction are modulated by several factors. Y1 - 2022 U6 - https://doi.org/10.1007/s40279-022-01748-2 SN - 0112-1642 SN - 1179-2035 VL - 53 IS - 1 SP - 7 EP - 31 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Appiah-Dwomoh, Edem Korkor A1 - Carlsohn, Anja A1 - Mayer, Frank T1 - Assessment of Dietary Intake of Long-Distance Race Car Drivers BT - A Pilot Study JF - Sports N2 - Long-distance race car drivers are classified as athletes. The sport is physically and mentally demanding, requiring long hours of practice. Therefore, optimal dietary intake is essential for health and performance of the athlete. The aim of the study was to evaluate dietary intake and to compare the data with dietary recommendations for athletes and for the general adult population according to the German Nutrition Society (DGE). A 24-h dietary recall during a competition preparation phase was obtained from 16 male race car drivers (28.3 ± 6.1 years, body mass index (BMI) of 22.9 ± 2.3 kg/m2). The mean intake of energy, nutrients, water and alcohol was recorded. The mean energy, vitamin B2, vitamin E, folate, fiber, calcium, water and alcohol intake were 2124 ± 814 kcal/day, 1.3 ± 0.5 mg/day, 12.5 ± 9.5 mg/day, 231.0 ± 90.9 ug/day, 21.4 ± 9.4 g/day, 1104 ± 764 mg/day, 3309 ± 1522 mL/day and 0.8 ± 2.5 mL/day respectively. Our study indicated that many of the nutrients studied, including energy and carbohydrate, were below the recommended dietary intake for both athletes and the DGE. KW - long-distance race car driving KW - dietary intake KW - 24 h recall KW - pilot study Y1 - 2018 U6 - https://doi.org/10.3390/sports6040118 SN - 2075-4663 VL - 6 IS - 4 SP - 1 EP - 7 PB - MDPI CY - Basel ER -