@article{MainkaWisselVoelleretal.2018, author = {Mainka, Stefan and Wissel, J{\"o}rg and V{\"o}ller, Heinz and Evers, Stefan}, title = {The Use of Rhythmic Auditory Stimulation to Optimize Treadmill Training for Stroke Patients}, series = {Frontiers in Neurology}, volume = {9}, journal = {Frontiers in Neurology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-2295}, doi = {10.3389/fneur.2018.00755}, pages = {8}, year = {2018}, abstract = {The use of functional music in gait training termed rhythmic auditory stimulation (RAS) and treadmill training (TT) have both been shown to be effective in stroke patients (SP). The combination of RAS and treadmill training (RAS-TT) has not been clinically evaluated to date. The aim of the study was to evaluate the efficacy of RAS-TT on functional gait in SR The protocol followed the design of an explorative study with a rater-blinded three arm prospective randomized controlled parallel group design. Forty-five independently walking SP with a hemiparesis of the lower limb or an unsafe and asymmetrical walking pattern were recruited. RAS-TT was carried out over 4 weeks with TT and neurodevelopmental treatment based on Bobath approach (NDT) serving as control interventions. For RAS-TT functional music was adjusted individually while walking on the treadmill. Pre and post-assessments consisted of the fast gait speed test (FGS), a gait analysis with the locometre (LOC), 3 min walking time test (3MWT), and an instrumental evaluation of balance (IEB). Raters were blinded to group assignments. An analysis of covariance (ANCOVA) was performed with affiliated measures from pre-assessment and time between stroke and start of study as covariates. Thirty-five participants (mean age 63.6 +/- 8.6 years, mean time between stroke and start of study 42.1 +/- 23.7 days) completed the study (11 RAS-TT, 13 TT, 11 NDT). Significant group differences occurred in the FGS for adjusted post-measures in gait velocity [F-(2,F- (34)) = 3.864, p = 0.032; partial eta(2) = 0.205] and cadence [F-(2,F- 34) = 7.656, p = 0.002; partial eta(2) = 0.338]. Group contrasts showed significantly higher values for RAS-TT. Stride length results did not vary between the groups. LOC, 3MWT, and IEB did not indicate group differences. One patient was withdrawn from TT because of pain in one arm. The study provides first evidence for a higher efficacy of RAS-TT in comparison to the standard approaches TT and NDT in restoring functional gait in SP. The results support the implementation of functional music in neurological gait rehabilitation and its use in combination with treadmill training.}, language = {en} } @misc{PostolicaIorgaSavinetal.2018, author = {Postolica, Roxana and Iorga, Magdalena and Savin, Mihaela and Azoicai, Doina and Enea, Violeta}, title = {The utility of Leventhal's model in the analysis of the psycho-behavioral implications of familial cancer}, series = {Archives of Medical Science}, volume = {14}, journal = {Archives of Medical Science}, number = {5}, publisher = {Termedia publishing house LTD}, address = {Poznan}, issn = {1734-1922}, doi = {10.5114/aoms.2016.63149}, pages = {1144 -- 1154}, year = {2018}, abstract = {Introduction: We aim to highlight the utility of this model in the analysis of the psycho-behavioral implications of family cancer, presenting the scientific literature that used Leventhal's model as the theoretical framework of approach. Material and methods: A systematic search was performed in six databases (EBSCO, ScienceDirect, PubMed Central, ProQuest, Scopus, and Web of Science) with empirical studies published between 2006 and 2015 in English with regard to the Common Sense Model of Self-Regulation (CSMR) and familial/hereditary cancer. The key words used were: illness representations, common sense model, self regulatory model, familial/hereditary/genetic cancer, genetic cancer counseling. The selection of studies followed the PRISMA-P guidelines (Moher et al., 2009; Shamseer et al., 2015), which suggest a three-stage procedure. Results: Individuals create their own cognitive and emotional representation of the disease when their health is threatened, being influenced by the presence of a family history of cancer, causing them to adopt or not a salutogenetic behavior. Disease representations, particularly the cognitive ones, can be predictors of responses to health threats that determine different health behaviors. Age, family history of cancer, and worrying about the disease are factors associated with undergoing screening. No consensus has been reached as to which factors act as predictors of compliance with cancer screening programs. Conclusions: This model can generate interventions that are conceptually clear as well as useful in regulating the individuals' behaviors by reducing the risk of developing the disease and by managing as favorably as possible health and/or disease.}, language = {en} } @misc{PaoliMoroLorenzettietal.2020, author = {Paoli, Antonio and Moro, Tatiana and Lorenzetti, Silvio and Seiler, Jan and L{\"u}thy, Fabian and Gross, Micah and Roggio, Federico and Chaabene, Helmi and Musumeci, Giuseppe}, title = {The "Journal of Functional Morphology and Kinesiology" Journal Club Series}, series = {Journal of Functional Morphology and Kinesiology}, volume = {5}, journal = {Journal of Functional Morphology and Kinesiology}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2411-5142}, doi = {10.3390/jfmk5020025}, pages = {1 -- 9}, year = {2020}, abstract = {We are glad to introduce the Second Journal Club of Volume Five, Second Issue. This edition is focused on relevant studies published in the last few years in the field of resistance training, chosen by our Editorial Board members and their colleagues. We hope to stimulate your curiosity in this field and to share with you the passion for the sport, seen also from the scientific point of view. The Editorial Board members wish you an inspiring lecture.}, language = {en} } @article{BrandCheval2019, author = {Brand, Ralf and Cheval, Boris}, title = {Theories to explain exercise motivation and physical inactivity}, series = {Frontiers in psychology}, volume = {10}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2019.01147}, pages = {4}, year = {2019}, language = {en} } @article{NairLinWippert2022, author = {Na{\"i}r, Alexandra and Lin, Chiao-I and Wippert, Pia-Maria}, title = {Translation and adaptation of the French version of the risk stratification index, a tool for stratified care in chronic low back pain}, series = {Medicina : monthly medical journal of Lithuanian Medical Association, Kaunas}, volume = {58}, journal = {Medicina : monthly medical journal of Lithuanian Medical Association, Kaunas}, number = {4}, publisher = {Kaunas Univ. of Medicine}, address = {Kaunas, Litauen}, issn = {1648-9144}, doi = {10.3390/medicina58040469}, pages = {1 -- 8}, year = {2022}, abstract = {Background and Objectives: Low back pain is a worldwide health problem. An early diagnosis is required to develop personalized treatment strategies. The Risk Stratification Index (RSI) was developed to serve the purpose. The aim of this pilot study is to cross-culturally translate the RSI to a French version (RSI-F) and evaluate the test-retest reliability of RSI-F using a French active population. Materials and Methods: The RSI was translated from German to French (RSI-F) based on the guidelines of cross-cultural adaptation of self-report measures. A total of 42 French recreational athletes (age 18-63 years) with non-specific low back pain were recruited and filled in the RSI-F twice. The test-retest reliability was examined using intraclass correlation coefficient (ICC1,2) and Pearson correlation coefficient. Results: Finally, 33 questionnaires were analyzed (14 males and 19 females, age 31 ± 10 years, 9.5 ± 3.2 h/week of training). The test-retest of RSI-F CPI and DISS were excellent (CPI: ICC1,2 = 0.989, p < 0.001; r = 0.989, p < 0.001; DISS: ICC1,2 = 0.991, p < 0.001; r = 0.991, p < 0.001), as well as Korff pain intensity (ICC1,2 = 0.995, p < 0.001; r = 0.995, p < 0.001) and disability (ICC1,2 = 0.998, p < 0.001; r = 0.998, p < 0.001). Conclusion: The RSI-F is linguistically accurate and reliable for use by a French-speaking active population with non-specific low back pain. The RSI-F is considered a tool to examine the evolution of psychosocial factors and therefore the risk of chronicity and the prognostic of pain. Further evaluations, such as internal, external validity, and responsiveness should be evaluated in a larger population.}, language = {en} } @article{TrautmannZhouBrahmsetal.2021, author = {Trautmann, Justin and Zhou, Lin and Brahms, Clemens Markus and Tunca, Can and Ersoy, Cem and Granacher, Urs and Arnrich, Bert}, title = {TRIPOD}, series = {Data : open access ʻData in scienceʼ journal}, volume = {6}, journal = {Data : open access ʻData in scienceʼ journal}, number = {9}, publisher = {MDPI}, address = {Basel}, issn = {2306-5729}, doi = {10.3390/data6090095}, pages = {19}, year = {2021}, abstract = {Inertial measurement units (IMUs) enable easy to operate and low-cost data recording for gait analysis. When combined with treadmill walking, a large number of steps can be collected in a controlled environment without the need of a dedicated gait analysis laboratory. In order to evaluate existing and novel IMU-based gait analysis algorithms for treadmill walking, a reference dataset that includes IMU data as well as reliable ground truth measurements for multiple participants and walking speeds is needed. This article provides a reference dataset consisting of 15 healthy young adults who walked on a treadmill at three different speeds. Data were acquired using seven IMUs placed on the lower body, two different reference systems (Zebris FDMT-HQ and OptoGait), and two RGB cameras. Additionally, in order to validate an existing IMU-based gait analysis algorithm using the dataset, an adaptable modular data analysis pipeline was built. Our results show agreement between the pressure-sensitive Zebris and the photoelectric OptoGait system (r = 0.99), demonstrating the quality of our reference data. As a use case, the performance of an algorithm originally designed for overground walking was tested on treadmill data using the data pipeline. The accuracy of stride length and stride time estimations was comparable to that reported in other studies with overground data, indicating that the algorithm is equally applicable to treadmill data. The Python source code of the data pipeline is publicly available, and the dataset will be provided by the authors upon request, enabling future evaluations of IMU gait analysis algorithms without the need of recording new data.}, language = {en} } @book{PuergstallerNeuber2024, author = {P{\"u}rgstaller, Esther and Neuber, Nils}, title = {T{\"a}nzerischer Kreativit{\"a}tstest f{\"u}r 8 bis 12-J{\"a}hrige}, editor = {P{\"u}rgstaller, Esther and Neuber, Nils}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, doi = {10.25932/publishup-62704}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-627040}, publisher = {Universit{\"a}t Potsdam}, pages = {83}, year = {2024}, abstract = {Der t{\"a}nzerische Kreativit{\"a}tstest stellt ein valides Instrumentarium dar, welches auf tanzspezifischen Aufgaben basiert und f{\"u}r die differenzierte und standardisierte Erfassung der t{\"a}nzerischen Kreativit{\"a}t bei Kindern im Alter von 8 bis 12 Jahren konzipiert ist. Mit dem t{\"a}nzerischen Kreativit{\"a}tstest k{\"o}nnen nicht nur Fragestellungen zum Stand sowie zur Entwicklung t{\"a}nzerisch-kreativer F{\"a}higkeiten im Kindesalter bearbeitet werden, sondern er liefert auch wertvolle Informationen f{\"u}r die Optimierung von Trainings-, F{\"o}rder- und Vermittlungsmaßnahmen. Erfasst werden folgende t{\"a}nzerisch-kreativen F{\"a}higkeiten: 1) Vielfalt und Originalit{\"a}t in der Fortbewegung und in K{\"o}rperpositionen sowie 2) Ideenreichtum, Vielfalt und Originalit{\"a}t in der Gestaltung von Bewegungspatterns und -kompositionen. Dieser Test l{\"a}sst sich mit gr{\"o}ßeren Gruppen und minimalem materiellen Aufwand durchf{\"u}hren, ist zeitlich unbeschr{\"a}nkt und erm{\"o}glicht es, unterschiedliche Leistungsniveaus zu identifizieren. Der t{\"a}nzerische Kreativit{\"a}tstest bietet Forschenden und Lehrkr{\"a}ften eine wertvolle M{\"o}glichkeit, die t{\"a}nzerisch-kreativen F{\"a}higkeiten von Kindern zu analysieren und zu f{\"o}rdern.}, language = {de} } @article{QuarmbyKhajooeiKurtzetal.2023, author = {Quarmby, Andrew James and Khajooei, Mina and Kurtz, Philip and Henschke, Jakob and Kim, MyoungHwee and Mayer, Frank and Engel, Tilman}, title = {Unexpected running perturbations}, series = {Frontiers in sports and active living}, volume = {5}, journal = {Frontiers in sports and active living}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2624-9367}, doi = {10.3389/fspor.2023.1129058}, pages = {14}, year = {2023}, abstract = {Introduction Balance is vital for human health and experiments have been conducted to measure the mechanisms of postural control, for example studying reflex responses to simulated perturbations. Such studies are frequent in walking but less common in running, and an understanding of reflex responses to trip-like disturbances could enhance our understanding of human gait and improve approaches to training and rehabilitation. Therefore, the primary aim of this study was to investigate the technical validity and reliability of a treadmill running protocol with perturbations. A further exploratory aim was to evaluate the associated neuromuscular reflex responses to the perturbations, in the lower limbs. Methods Twelve healthy participants completed a running protocol (9 km/h) test-retest (2 weeks apart), whereby 30 unilateral perturbations were executed via the treadmill belts (presets:2.0 m/s amplitude;150 ms delay (post-heel contact);100ms duration). Validity of the perturbations was assessed via mean +/- SD comparison, percentage error calculation between the preset and recorded perturbation characteristics (PE\%), and coefficient of variation (CV\%). Test-retest reliability (TRV\%) and Bland-Altman analysis (BLA; bias +/- 1.96 * SD) was calculated for reliability. To measure reflex activity, electromyography (EMG) was applied in both legs. EMG amplitudes (root mean square normalized to unperturbed strides) and latencies [ms] were analysed descriptively. Results Left-side perturbation amplitude was 1.9 +/- 0.1 m/s, delay 105 +/- 2 ms, and duration 78 +/- 1 ms. Right-side perturbation amplitude was 1.9 +/- 0.1 m/s, delay 118 +/- 2 ms, duration 78 +/- 1 ms. PE\% ranged from 5-30\% for the recorded perturbations. CV\% of the perturbations ranged from 19.5-76.8\%. TRV\% for the perturbations was 6.4-16.6\%. BLA for the left was amplitude: 0.0 +/- 0.3m/s, delay: 0 +/- 17 ms, duration: 2 +/- 13 ms, and for the right was amplitude: 0.1 +/- 0.7, delay: 4 +/- 40 ms, duration: 1 +/- 35 ms. EMG amplitudes ranged from 175 +/- 141\%-454 +/- 359\% in both limbs. Latencies were 109 +/- 12-116 +/- 23 ms in the tibialis anterior, and 128 +/- 49-157 +/- 20 ms in the biceps femoris. Discussion Generally, this study indicated sufficient validity and reliability of the current setup considering the technical challenges and limitations, although the reliability of the right-sided perturbations could be questioned. The protocol provoked reflex responses in the lower extremities, especially in the leading leg. Acute neuromusculoskeletal adjustments to the perturbations could be studied and compared in clinical and healthy running populations, and the protocol could be utilised to monitor chronic adaptations to interventions over time.}, language = {en} } @article{RigamontiEstelGehlenetal.2021, author = {Rigamonti, Lia and Estel, Katharina and Gehlen, Tobias and Wolfarth, Bernd and Lawrence, James B. and Back, David A.}, title = {Use of artificial intelligence in sports medicine}, series = {BMC Sports Science, Medicine \& Rehabilitation}, volume = {13}, journal = {BMC Sports Science, Medicine \& Rehabilitation}, publisher = {BioMed Central}, address = {London}, issn = {2052-1847}, doi = {10.1186/s13102-021-00243-x}, pages = {17}, year = {2021}, abstract = {Background Artificial intelligence (AI) is one of the most promising areas in medicine with many possibilities for improving health and wellness. Already today, diagnostic decision support systems may help patients to estimate the severity of their complaints. This fictional case study aimed to test the diagnostic potential of an AI algorithm for common sports injuries and pathologies. Methods Based on a literature review and clinical expert experience, five fictional "common" cases of acute, and subacute injuries or chronic sport-related pathologies were created: Concussion, ankle sprain, muscle pain, chronic knee instability (after ACL rupture) and tennis elbow. The symptoms of these cases were entered into a freely available chatbot-guided AI app and its diagnoses were compared to the pre-defined injuries and pathologies. Results A mean of 25-36 questions were asked by the app per patient, with optional explanations of certain questions or illustrative photos on demand. It was stressed, that the symptom analysis would not replace a doctor's consultation. A 23-yr-old male patient case with a mild concussion was correctly diagnosed. An ankle sprain of a 27-yr-old female without ligament or bony lesions was also detected and an ER visit was suggested. Muscle pain in the thigh of a 19-yr-old male was correctly diagnosed. In the case of a 26-yr-old male with chronic ACL instability, the algorithm did not sufficiently cover the chronic aspect of the pathology, but the given recommendation of seeing a doctor would have helped the patient. Finally, the condition of the chronic epicondylitis in a 41-yr-old male was correctly detected. Conclusions All chosen injuries and pathologies were either correctly diagnosed or at least tagged with the right advice of when it is urgent for seeking a medical specialist. However, the quality of AI-based results could presumably depend on the data-driven experience of these programs as well as on the understanding of their users. Further studies should compare existing AI programs and their diagnostic accuracy for medical injuries and pathologies.}, language = {en} } @article{HeisselSanchezPietreketal.2023, author = {Heissel, Andreas and Sanchez, Alba and Pietrek, Anou F. and Bergau, Theresa and Stielow, Christiane and Rapp, Michael A. and Van der Kaap-Deeder, Jolene}, title = {Validating the German Short Basic Psychological Need Satisfaction and Frustration Scale in Individuals with Depression}, series = {Healthcare}, volume = {11}, journal = {Healthcare}, number = {3}, publisher = {MDPI}, address = {Basel}, issn = {2227-9032}, doi = {10.3390/healthcare11030412}, pages = {18}, year = {2023}, abstract = {Satisfaction and frustration of the needs for autonomy, competence, and relatedness, as assessed with the 24-item Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS), have been found to be crucial indicators of individuals' psychological health. To increase the usability of this scale within a clinical and health services research context, we aimed to validate a German short version (12 items) of this scale in individuals with depression including the examination of the relations from need frustration and need satisfaction to ill-being and quality of life (QOL). This cross-sectional study involved 344 adults diagnosed with depression (Mage (SD) = 47.5 years (11.1); 71.8\% females). Confirmatory factor analyses indicated that the short version of the BPNSFS was not only reliable, but also fitted a six-factor structure (i.e., satisfaction/frustration X type of need). Subsequent structural equation modeling showed that need frustration related positively to indicators of ill-being and negatively to QOL. Surprisingly, need satisfaction did not predict differences in ill-being or QOL. The short form of the BPNSFS represents a practical instrument to measure need satisfaction and frustration in people with depression. Further, the results support recent evidence on the importance of especially need frustration in the prediction of psychopathology.}, language = {en} } @article{HeisselBollmannKangasetal.2021, author = {Heißel, Andreas and Bollmann, Julian and Kangas, Maria and Abdulla, K and Rapp, Michael A. and S{\´a}nchez Fern{\`a}ndez, Alba Cristina}, title = {Validation of the German version of the work and social adjustment scale in a sample of depressed patients}, series = {BMC health services research}, volume = {21}, journal = {BMC health services research}, publisher = {BioMed Central}, address = {London}, issn = {1472-6963}, doi = {10.1186/s12913-021-06622-x}, pages = {1 -- 11}, year = {2021}, abstract = {Background Depression is one of the key factors contributing to difficulties in one's ability to work, and serves as one of the major reasons why employees apply for psychotherapy and receive insurance subsidization of treatments. Hence, an increasing and growing number of studies rely on workability assessment scales as their primary outcome measure. The Work and Social Assessment Scale (WSAS) has been documented as one of the most psychometrically reliable and valid tools especially developed to assess workability and social functioning in patients with mental health problems. Yet, the application of the WSAS in Germany has been limited due to the paucity of a valid questionnaire in the German language. The objective of the present study was to translate the WSAS, as a brief and easy administrable tool into German and test its psychometric properties in a sample of adults with depression. Methods Two hundred seventy-seven patients (M = 48.3 years, SD = 11.1) with mild to moderately severe depression were recruited. A multistep translation from English into the German language was performed and the factorial validity, criterion validity, convergent validity, discriminant validity, internal consistency, and floor and ceiling effects were examined. Results The confirmatory factor analysis results confirmed the one-factor structure of the WSAS. Significant correlations with the WHODAS 2-0 questionnaire, a measure of functionality, demonstrated good convergent validity. Significant correlations with depression and quality of life demonstrated good criterion validity. The WSAS also demonstrated strong internal consistency (α = .89), and the absence of floor and ceiling effects indicated good sensitivity of the instrument. Conclusions The results of the present study demonstrated that the German version of the WSAS has good psychometric properties comparable to other international versions of this scale. The findings recommend a global assessment of psychosocial functioning with the sum score of the WSAS.}, language = {en} } @article{MkaouerAmaraBouguezzietal.2023, author = {Mkaouer, Bessem and Amara, Samiha and Bouguezzi, Raja and Ben Abderrahmen, Abderraouf and Chaabene, Helmi}, title = {Validity of a new sport-specific endurance test in artistic gymnastics}, series = {Frontiers in sports and active living}, volume = {5}, journal = {Frontiers in sports and active living}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2624-9367}, doi = {10.3389/fspor.2023.1159807}, pages = {8}, year = {2023}, abstract = {Introduction General and particularly sport-specific testing is an integral aspect of performance optimization in artistic gymnastics. In artistic gymnastics, however, only non-specific field tests have been used to assess endurance performance (e.g., Multistage Shuttle Run Test; Cooper's Test). Methods This study aimed to examine the validity of a new sport-specific endurance test in artistic gymnastics. Fourteen elite-level gymnasts (i.e., eight males and six females) participated in this study. The newly developed artistic gymnastics-specific endurance test (AGSET) was conducted on two different occasions seven days apart to determine its reliability. To assess the concurrent validity of AGSET, participants performed the multistage shuttle run test (MSRT). Maximum oxygen uptake (VO2max) and respiratory exchange ratio (RER) were directly assessed using a portable gas analyzer system during both protocols. Additionally, the total time maintained (TTM) during the AGSET, maximum heart rate (HRmax), maximal aerobic speed (MAS), and blood lactate concentration (BLa) during the two protocols were collected. Results The main findings indicated that all variables derived from the AGSET (i.e., VO2max, MAS, HRmax, BLa, and RER) displayed very good relative (all intraclass correlation coefficients [ICC] > 0.90) and absolute (all typical errors of measurement [TEM] < 5\%) reliability. Further, results showed that the ability of the AGSET to detect small changes in VO2max, MAS, BLa, and RER was good (smallest worthwhile change [SWC0.2] > TEM), except HRmax (SWC0.2 < TEM). Additionally, results showed a nearly perfect association between the VO2max values derived from the AGSET and MSRT (r = 0.985; coefficient of determination [R-2] = 97\%) with no statistically significant differences (p>0.05). The mean (bias) +/- 95\% limits of agreement between the two protocols were 0.28 +/- 0.55 mlminkg-1. Discussion AGSET seems to present very good reliability and concurrent validity for assessing endurance performance in elite artistic gymnastics. In addition, the newly developed protocol presents a good ability to detect small changes in performance.}, language = {en} } @article{BrandTimmeNosrat2020, author = {Brand, Ralf and Timme, Sinika and Nosrat, Sanaz}, title = {When pandemic hits}, series = {Frontiers in psychology}, volume = {11}, journal = {Frontiers in psychology}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2020.570567}, pages = {10}, year = {2020}, abstract = {The governmental lockdowns related to the COVID-19 pandemic have forced people to change their behavior in many ways including changes in exercise. We used the brief window of global lockdown in the months of March/April/May 2020 as an opportunity to investigate the effects of externally imposed restrictions on exercise-related routines and related changes in subjective well-being. Statistical analyses are based on data from 13,696 respondents in 18 countries using a cross-sectional online survey. A mixed effects modeling approach was used to analyze data. We tested whether exercise frequency before and during the pandemic would influence mood during the pandemic. Additionally, we used the COVID-19 pandemic data to build a prediction model, while controlling for national differences, to estimate changes in exercise frequency during similar future lockdown conditions depending on prelockdown exercise frequency. According to the prediction model, those who rarely exercise before a lockdown tend to increase their exercise frequency during it, and those who are frequent exercisers before a lockdown tend to maintain it. With regards to subjective well-being, the data show that those who exercised almost every day during this pandemic had the best mood, regardless of whether or not they exercised prepandemic. Those who were inactive prepandemic and slightly increased their exercise frequency during the pandemic, reported no change in mood compared to those who remained inactive during the pandemic. Those who reduced their exercise frequency during the pandemic reported worse mood compared to those who maintained or increased their prepandemic exercise frequency. This study suggests that under similar lockdown conditions, about two thirds of those who never or rarely exercise before a lockdown might adopt an exercise behavior or increase their exercise frequency. However, such changes do not always immediately result in improvement in subjective well-being. These results may inform national policies, as well as health behavior and exercise psychology research on the importance of exercise promotion, and prediction of changes in exercise behavior during future pandemics.}, language = {en} } @article{VerchStollHadzicetal.2021, author = {Verch, Ronald and Stoll, Josefine and Hadzic, Miralem and Quarmby, Andrew James and V{\"o}ller, Heinz}, title = {Whole-Body EMS Superimposed Walking and Nordic Walking on a Treadmill—Determination of Exercise Intensity to Conventional Exercise}, series = {Frontiers in physiology / Frontiers Research Foundation}, volume = {12}, journal = {Frontiers in physiology / Frontiers Research Foundation}, publisher = {Frontiers Research Foundation}, address = {Lausanne, Schweiz}, issn = {1664-042X}, doi = {10.3389/fphys.2021.715417}, pages = {1 -- 9}, year = {2021}, abstract = {Electrical muscle stimulation (EMS) is an increasingly popular training method and has become the focus of research in recent years. New EMS devices offer a wide range of mobile applications for whole-body EMS (WB-EMS) training, e.g., the intensification of dynamic low-intensity endurance exercises through WB-EMS. The present study aimed to determine the differences in exercise intensity between WB-EMS-superimposed and conventional walking (EMS-CW), and CON and WB-EMS-superimposed Nordic walking (WB-EMS-NW) during a treadmill test. Eleven participants (52.0 ± years; 85.9 ± 7.4 kg, 182 ± 6 cm, BMI 25.9 ± 2.2 kg/m2) performed a 10 min treadmill test at a given velocity (6.5 km/h) in four different test situations, walking (W) and Nordic walking (NW) in both conventional and WB-EMS superimposed. Oxygen uptake in absolute (VO2) and relative to body weight (rel. VO2), lactate, and the rate of perceived exertion (RPE) were measured before and after the test. WB-EMS intensity was adjusted individually according to the feedback of the participant. The descriptive statistics were given in mean ± SD. For the statistical analyses, one-factorial ANOVA for repeated measures and two-factorial ANOVA [factors include EMS, W/NW, and factor combination (EMS*W/NW)] were performed (α = 0.05). Significant effects were found for EMS and W/NW factors for the outcome variables VO2 (EMS: p = 0.006, r = 0.736; W/NW: p < 0.001, r = 0.870), relative VO2 (EMS: p < 0.001, r = 0.850; W/NW: p < 0.001, r = 0.937), and lactate (EMS: p = 0.003, r = 0.771; w/NW: p = 0.003, r = 0.764) and both the factors produced higher results. However, the difference in VO2 and relative VO2 is within the range of biological variability of ± 12\%. The factor combination EMS*W/NW is statistically non-significant for all three variables. WB-EMS resulted in the higher RPE values (p = 0.035, r = 0.613), RPE differences for W/NW and EMS*W/NW were not significant. The current study results indicate that WB-EMS influences the parameters of exercise intensity. The impact on exercise intensity and the clinical relevance of WB-EMS-superimposed walking (WB-EMS-W) exercise is questionable because of the marginal differences in the outcome variables.}, language = {en} } @article{FernandezFernandezMoyaRamonSantosRosaetal.2021, author = {Fernandez-Fernandez, Jaime and Moya-Ramon, Manuel and Santos-Rosa, Francisco Javier and Gantois, Petrus and Nakamura, Fabio Yuzo and Sanz-Rivas, David and Granacher, Urs}, title = {Within-session sequence of the tennis serve training in youth elite players}, series = {International journal of environmental research and public health}, volume = {18}, journal = {International journal of environmental research and public health}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {1660-4601}, doi = {10.3390/ijerph18010244}, pages = {15}, year = {2021}, abstract = {The influence of muscular fatigue on tennis serve performance within regular training sessions is unclear. Therefore, the aim of the present study was to examine the within-session sequence of the tennis serve in youth tennis. Twenty-five young male (14.9 +/- 0.9 years) and female (14.5 +/- 0.9 years) players participated in this within-subject crossover study, and they were randomly but sex-matched assigned to different training sequences (serve exercise before tennis training (BTS) or after tennis training (ATS)). Pre- and post-tests included serve velocity performance and accuracy, shoulder strength, and range-of-motion (ROM) performance (internal/external rotation). Results showed that after one week of serve training conducted following the ATS sequence, significant decreases were found in serve performance (e.g., speed and accuracy), with standardized differences ranging from d = 0.29 to 1.13, as well as the shoulder function (strength [d = 0.20 to 1.0] and ROM [d = 0.17 to 0.31]) in both female and male players, compared to the BTS sequence. Based on the present findings, it appears more effective to implement serve training before the regular tennis training in youth players. If applied after training, excessive levels of fatigue may cause shoulder imbalances that could be related to an increased injury risk.}, language = {en} }