TY - THES A1 - Stoll, Josefine T1 - Gesundheitsmonitoring im Langstreckenmotorsport T1 - Pre Participation Examination in Long distance Race car drivers BT - eine Analyse von Athletenprofilen, häufigen Beschwerden und deren Ableitung für präventive Trainingsprogramme im Quer- und Längsschnitt N2 - Professionelle GT Langstreckenmotorsportler (Rennfahrer) müssen den hohen motorischen und kognitiven Ansprüchen ohne Verlust der Performance während eines Rennens endgegenwirken können. Sie müssen stets, bei hoher Geschwindigkeit fokussiert und konzentriert auf ihr Auto, die Rennstrecke und ihre Gegner reagieren können. Darüber hinaus sind Rennfahrer zusätzlich durch die notwendige Kommunikation im Auto mit den Ingenieuren und Mechanikern in der Boxengasse gefordert. Daten über die tatsächliche Beanspruchung und häufig auftretende Beschwerden und/oder Verletzung von Profiathleten liegen kaum vor. Für eine möglichst gute Performance im Auto während eines Rennens ist es notwendige neben der körperlichen Beanspruchung auch die häufigen Krankheitsbilder zu kennen. Auf Basis dessen kann eine optimale Prävention oder notwendige Therapie zur möglichst schnellen Reintegration in den Sport abgeleitet und entwickelt werden. Die vorliegende Arbeit befasst sich durch ein regelmäßiges Gesundheitsmonitoring mit der Erfassung häufiger Beschwerden und oder Verletzungen im GT Langestreckenmotorsport zur Ableitung eines präventiven (trainingstherapeutischen) und therapeutischen Konzeptes. Darüber hinaus, soll über die Einschätzung der körperlichen Leistungsfähigkeit der Athleten, auf Basis der Beanspruchung im Rennfahrzeug ein mögliches Trainingskonzept in Abhängigkeit der Saison entwickelt werden. Insgesamt wurden über 15 Jahre (2003-2017) 37 männliche Athleten aus dem GT Langstreckenmotorsport 353mal im Rahmen eines Gesundheitsmonitorings untersucht. Dabei wurden Athleten maximal 14 Jahre und mindestens 1 Jahr sportmedizinische betreut. Diese 2x im Jahr stattfindende Untersuchung beinhaltete im Wesentlichen eine sportmedizinische Untersuchung zur Einschätzung der Tauglichkeit für den Sport und die Erfassung der körperlichen Leistungsfähigkeit. Über das Gesundheitsmonitoring hinaus erfolgte die Betreuung zusätzlich an der Rennstrecke zur weiteren Erfassung der Beschwerden, Erkrankungen und Verletzungen der Athleten während ihrer sportartspezifischen Belastung. Zusammengefasst zeigen die Athleten geringe Prävalenzen und Inzidenzen der Krankheitsbilder bzw. Beschwerden. Ein Unterschied der Prävalenzen zeigt sich zwischen den Gesundheitsuntersuchungen und der Betreuung an der Rennstrecke. Die häufigsten Beschwerdebilder zeigen sich aus Orthopädie und Innerer Medizin. So sind Infekte der oberen Atemwege sowie Allergien neben Beschwerden der unteren Extremität und der Wirbelsäule am häufigsten. Demzufolge werden vorrangig physio- und trainingstherapeutische Konsequenzen abgeleitet. Eine medikamentöse Therapie erfolgt im Wesentlichen während der Rennbetreuung. Zur Reduktion der orthopädischen und internistischen Beschwerden sollten präventive Maßnahmen mehr betont werden. Die körperliche Leistungsfähigkeit zeigt im Wesentlichen über die Untersuchungsjahre eine stabile Performance für die Ausdauer-, Kraft und sensomotorische Leistungsfähigkeit. Die Ausdauerleistungsfähigkeit kann in Abhängigkeit der Sportartspezifik mit einer guten bis sehr guten Ausprägung definiert werden. Die Kraftleistungsfähigkeit und die sensomotorische Leistungsfähigkeit lassen sportartspezifische Unterschiede zu und sollte körpergewichtsbezogen betrachtet werden. Ein sportmedizinisches und trainingstherapeutisches Konzept müsste demnach eine regelmäßige ärztlich-medizinische Untersuchung mit dem Fokus der Orthopädie, Inneren Medizin und Hals- Nasen-Ohren-Kunde beinhalten. Darüber hinaus sollte eine regelmäßige Erfassung der körperlichen Leistungsfähigkeit zur möglichst effektiven Ableitung von Trainingsinhalten oder Präventionsmaßnahmen berücksichtig werden. Auf Grundlage der hohen Reisetätigkeit und der ganzjährigen Saison könnte ein 1-2x jährlich stattfindendes Trainingslager, im Sinne eines Grundlagen- und Aufbautrainings zur Optimierung der Leistungsfähigkeit beitragen, das Konzept komplementieren. Zudem scheint eine ärztliche Rennbetreuung notwendig. N2 - Professional long distance race car drivers (GT- Sportscars) are highly challenged regarding physical load during racing without any lost of performance. It is needed that those athletes are able to react in time in addiction to high speed and other race car drivers on the track. Studies about common injuries or overuse are rare and not longitudinal analysed. Based on known sports specific injuries or overuse, necessary prevention strategies or therapy concept are helpful for an evident Return to Sport. This study is based on prospective longitudinal Analyses of common injuries and overuse in professional race car drivers with differentiation to prevention and therapeutic concepts. Additionally, based on physical capacity (endurance, strength, sensorymotor- control) a needed training recommendation is derived. Overall 37 male professional longdistance race car drivers were analysed over 15 years (2003-2017). Therefore 353 preparticipation examinations (PPE) and physical fitness tests were included. The number of Athletes ranged between 6-19 per year with a support from 1 to 15 years. Additionally to the PPE and physical fitness tests the needed medical care at the track during race were analysed for the years 2015 and 2016. Summarized, longdistance race car drivers are showing low Prevalence’s of injuries or overuse. Frequent complaints are infections of the upper respiratory tract, allergies and tendinopathy of the lower limb together with chronic unspecific low back pain. The therapeutic derivation on track was for the most part drug-treated. A useful consequence for the reduction of the common orthopedic and internistic complaints are preventive methods like aerobic endurance training, sleep hygiene, (eccentric) strength training and balance training. The physical capacite is stable over the years. The endurance capacity shows in dependence to the sports specific a good capacity. The strength and sensorymotor control capacity shows sports specific differences. A sports medical and preventive/ therapeutic concept in longdistance motorsports has to include regular PPE with focus on orthopedic and internistic examinations. Additionally a regularly measurement of the physical capacity (endurance, strength and sensorymotor control) is needed for evident and individual recommendations for training and prevention. Regarding the high all year intercontinental travelling and the season over the whole year a 1-2 times organized fitness camp could compliment a sports medical concept as well as medical care on the track. KW - Langstreckenmotorsport KW - Gesundheitsmonitoring KW - Prävention KW - Race car driver KW - Pre participation examination KW - race car driver KW - prevention KW - longdistance racing Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-420880 ER - TY - JOUR A1 - Müller, Juliane A1 - Stoll, Josefine A1 - Mueller, Steffen A1 - Mayer, Frank T1 - Dose-response relationship of core-specific sensorimotor interventions in healthy, well-trained participants BT - study protocol for a (MiSpEx) randomized controlled trial JF - Trials N2 - Background: Core-specific sensorimotor exercises are proven to enhance neuromuscular activity of the trunk, improve athletic performance and prevent back pain. However, the dose-response relationship and, therefore, the dose required to improve trunk function is still under debate. The purpose of the present trial will be to compare four different intervention strategies of sensorimotor exercises that will result in improved trunk function. Discussion: The results of the study will be clinically relevant, not only for researchers but also for (sports) therapists, physicians, coaches, athletes and the general population who have the aim of improving trunk function. KW - Sensorimotor training KW - Perturbation KW - Exercise KW - MiSpEx Y1 - 2018 U6 - https://doi.org/10.1186/s13063-018-2799-9 SN - 1745-6215 VL - 19 PB - BMC CY - London ER - TY - GEN A1 - Mugele, Hendrik A1 - Plummer, Ashley A1 - Steffen, Kathrin A1 - Stoll, Josefine A1 - Mayer, Frank A1 - Müller, Juliane T1 - General versus sports-specific injury prevention programs in athletes BT - A systematic review on the effect on injury rates T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - Introduction Annually, 2 million sports-related injuries are reported in Germany of which athletes contribute to a large proportion. Multiple sport injury prevention programs designed to decrease acute and overuse injuries in athletes have been proven effective. Yet, the programs’ components, general or sports-specific, that led to these positive effects are uncertain. Despite not knowing about the superiority of sports-specific injury prevention programs, coaches and athletes alike prefer more specialized rather than generalized exercise programs. Therefore, this systematic review aimed to present the available evidence on how general and sports-specific prevention programs affect injury rates in athletes. Methods PubMed and Web of Science were electronically searched throughout April 2018. The inclusion criteria were publication dates Jan 2006–Dec 2017, athletes (11–45 years), exercise-based injury prevention programs and injury incidence. The methodological quality was assessed with the Cochrane Collaboration assessment tools. Results Of the initial 6619 findings, 15 studies met the inclusion criteria. In addition, 13 studies were added from reference lists and external sources making a total of 28 studies. Of which, one used sports-specific, seven general and 20 mixed prevention strategies. Twenty-four studies revealed reduced injury rates. Of the four ineffective programs, one was general and three mixed. Conclusion The general and mixed programs positively affect injury rates. Sports-specific programs are uninvestigated and despite wide discussion regarding the definition, no consensus was reached. Defining such terminology and investigating the true effectiveness of such IPPs is a potential avenue for future research. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 481 KW - randomized-controlled-trial KW - cruciate ligament injury KW - amateur soccer players KW - hamstring injuries KW - training-program KW - exercise program KW - adolescent sport KW - youth football KW - team handball KW - risk-factors Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-419935 IS - 481 ER - TY - JOUR A1 - Mugele, Hendrick A1 - Plummer, Ashley A1 - Steffen, Kathrin A1 - Stoll, Josefine A1 - Mayer, Frank A1 - Müller, Juliane T1 - General versus sports-specific injury prevention programs in athletes BT - A systematic review on the effect on injury rates JF - PLOS ONE N2 - Introduction Annually, 2 million sports-related injuries are reported in Germany of which athletes contribute to a large proportion. Multiple sport injury prevention programs designed to decrease acute and overuse injuries in athletes have been proven effective. Yet, the programs’ components, general or sports-specific, that led to these positive effects are uncertain. Despite not knowing about the superiority of sports-specific injury prevention programs, coaches and athletes alike prefer more specialized rather than generalized exercise programs. Therefore, this systematic review aimed to present the available evidence on how general and sports-specific prevention programs affect injury rates in athletes. Methods PubMed and Web of Science were electronically searched throughout April 2018. The inclusion criteria were publication dates Jan 2006–Dec 2017, athletes (11–45 years), exercise-based injury prevention programs and injury incidence. The methodological quality was assessed with the Cochrane Collaboration assessment tools. Results Of the initial 6619 findings, 15 studies met the inclusion criteria. In addition, 13 studies were added from reference lists and external sources making a total of 28 studies. Of which, one used sports-specific, seven general and 20 mixed prevention strategies. Twenty-four studies revealed reduced injury rates. Of the four ineffective programs, one was general and three mixed. Conclusion The general and mixed programs positively affect injury rates. Sports-specific programs are uninvestigated and despite wide discussion regarding the definition, no consensus was reached. Defining such terminology and investigating the true effectiveness of such IPPs is a potential avenue for future research. KW - randomized-controlled-trial KW - cruciate ligament injury KW - amateur soccer players KW - hamstring injuries KW - training-program KW - exercise program KW - adolescent sport KW - youth football KW - team handball KW - risk-factors Y1 - 2018 U6 - https://doi.org/10.1371/journal.pone.0205635 SN - 1932-6203 VL - 13 IS - 10 SP - 1 EP - 16 PB - Public Library of Science CY - San Francisco ER - TY - JOUR A1 - Mueller, Steffen A1 - Engel, Tilman A1 - Müller, Juliane A1 - Stoll, Josefine A1 - Baur, Heiner A1 - Mayer, Frank T1 - Sensorimotor exercises and enhanced trunk function BT - a randomized controlled trial JF - International journal of sports medicine N2 - The aim of this study was to investigate the effect of a 6-week sensorimotor or resistance training on maximum trunk strength and response to sudden, high-intensity loading in athletes. Interventions showed no significant difference for maximum strength in concentric and eccentric testing (p>0.05). For perturbation compensation, higher peak torque response following SMT (Extension: +24Nm 95%CI +/- 19Nm; Rotation: + 19Nm 95%CI +/- 13Nm) and RT (Extension: +35Nm 95%CI +/- 16Nm; Rotation: +5Nm 95%CI +/- 4Nm) compared to CG (Extension: -4Nm 95%CI +/- 16Nm; Rotation: -2Nm 95%CI +/- 4Nm) was present (p<0.05). KW - core KW - training intervention KW - prevention KW - perturbation KW - MiSpEx* Y1 - 2018 U6 - https://doi.org/10.1055/a-0592-7286 SN - 0172-4622 SN - 1439-3964 VL - 39 IS - 7 SP - 555 EP - 563 PB - Thieme CY - Stuttgart ER - TY - JOUR A1 - Mueller, Juliane A1 - Stoll, Josefine A1 - Mueller, Steffen A1 - Mayer, Frank T1 - Dose-response relationship of core-specific sensorimotor interventions in healthy, welltrained participants BT - study protocol for a (MiSpEx) randomized controlled trial JF - Trials N2 - Background: Core-specific sensorimotor exercises are proven to enhance neuromuscular activity of the trunk, improve athletic performance and prevent back pain. However, the dose-response relationship and, therefore, the dose required to improve trunk function is still under debate. The purpose of the present trial will be to compare four different intervention strategies of sensorimotor exercises that will result in improved trunk function. Methods/design: A single-blind, four-armed, randomized controlled trial with a 3-week (home-based) intervention phase and two measurement days pre and post intervention (M1/M2) is designed. Experimental procedures on both measurement days will include evaluation of maximum isokinetic and isometric trunk strength (extension/flexion, rotation) including perturbations, as well as neuromuscular trunk activity while performing strength testing. The primary outcome is trunk strength (peak torque). Neuromuscular activity (amplitude, latencies as a response to perturbation) serves as secondary outcome. The control group will perform a standardized exercise program of four sensorimotor exercises (three sets of 10 repetitions) in each of six training sessions (30 min duration) over 3 weeks. The intervention groups’ programs differ in the number of exercises, sets per exercise and, therefore, overall training amount (group I: six sessions, three exercises, two sets; group II: six sessions, two exercises, two sets; group III: six sessions, one exercise, three sets). The intervention programs of groups I, II and III include additional perturbations for all exercises to increase both the difficulty and the efficacy of the exercises performed. Statistical analysis will be performed after examining the underlying assumptions for parametric and non-parametric testing. Discussion: The results of the study will be clinically relevant, not only for researchers but also for (sports) therapists, physicians, coaches, athletes and the general population who have the aim of improving trunk function. KW - Sensorimotor training KW - Perturbation KW - Exercise KW - MiSpEx Y1 - 2018 U6 - https://doi.org/10.1186/s13063-018-2799-9 SN - 1745-6215 VL - 19 IS - 424 PB - BioMed Central CY - London ER - TY - JOUR A1 - Mueller, Juliane A1 - Martinez-Valdes, Eduardo Andrés A1 - Stoll, Josefine A1 - Mueller, Steffen A1 - Engel, Tilman A1 - Mayer, Frank T1 - Differences in neuromuscular activity of ankle stabilizing muscles during postural disturbances BT - a gender-specific analysis JF - Gait & posture N2 - The purpose was to examine gender differences in ankle stabilizing muscle activation during postural disturbances. Seventeen participants (9 females: 27 +/- 2yrs., 1.69 +/- 0.1 m, 63 +/- 7 kg; 8 males: 29 +/- 2yrs., 1.81 +/- 0.1 m; 83 +/- 7 kg) were included in the study. After familiarization on a split-belt-treadmill, participants walked (1 m/s) while 15 right-sided perturbations were randomly applied 200 ms after initial heel contact. Muscle activity of M. tibialis anterior (TA), peroneus longus (PL) and gastrocnemius medialis (GM) was recorded during unperturbed and perturbed walking. The root mean square (RMS; [%]) was analyzed within 200 ms after perturbation. Co-activation was quantified as ratio of antagonist (GM)/agonist (TA) EMG-RMS during unperturbed and perturbed walking. Time to onset was calculated (ms). Data were analyzed descriptively (mean +/- SD) followed by three-way-ANOVA (gender/condition/muscle; alpha= 0.05). Perturbed walking elicited higher EMG activity compared to normal walking for TA and PL in both genders (p < 0.000). RMS amplitude gender comparisons revealed an interaction between gender and condition (F = 4.6, p = 0.049) and, a triple interaction among gender, condition and muscle (F = 4.7, p = 0.02). Women presented significantly higher EMG-RMS [%] PL amplitude than men during perturbed walking (mean difference = 209.6%, 95% confidence interval = -367.0 to -52.2%, p < 0.000). Co-activation showed significant lower values for perturbed compared to normal walking (p < 0.000), without significant gender differences for both walking conditions. GM activated significantly earlier than TA and PL (p < 0.01) without significant differences between the muscle activation onsets of men and women (p = 0.7). The results reflect that activation strategies of the ankle encompassing muscles differ between genders. In provoked stumbling, higher PL EMG activity in women compared to men is present. Future studies should aim to elucidate if this specific behavior has any relationship with ankle injury occurrence between genders. KW - Lower extremity KW - EMG KW - Perturbation KW - Split-belt treadmill KW - Ankle Y1 - 2018 U6 - https://doi.org/10.1016/j.gaitpost.2018.01.023 SN - 0966-6362 SN - 1879-2219 VL - 61 SP - 226 EP - 231 PB - Elsevier CY - Clare ER - TY - JOUR A1 - Cassel, Michael A1 - Risch, Lucie A1 - Intziegianni, Konstantina A1 - Mueller, Juliane A1 - Stoll, Josefine A1 - Brecht, Pia A1 - Mayer, Frank T1 - Incidence of achilles and patellar tendinopathy in adolescent elite athletes JF - International journal of sports medicine N2 - The study investigated the incidence of Achilles and patellar tendinopathy in adolescent elite athletes and non-athletic controls. Furthermore, predictive and associated factors for tendinopathy development were analyzed. The prospective study consisted of two measurement days (M1/M2) with an interval of 3.2 +/- 0.9 years. 157 athletes (12.1 +/- 0.7 years) and 25 controls (13.3 +/- 0.6 years) without Achilles/patellar tendinopathy were included at Ml. Clinical and ultrasound examinations of both Achilles (AT) and patellar tendons (PT) were performed. Main outcome measures were incidence tendinopathy and structural intratendinous alterations (hypo-/hyperechogenicity, vascularization) at M2 [%]. Incidence of Achilles tendinopathy was 1% in athletes and 0% in controls. Patellar tendinopathy was more frequent in athletes (13 %)than in controls (4%). Incidence of intratendinous alterations in ATs was 1-2% in athletes and 0 % in controls, whereas in PTs it was 4-6 % in both groups (p >0.05). Intratendinous alterations at M2 were associated with patellar tendinopathy in athletes (p <= 0.01). Intratendinous alterations at M1, anthropometric data, training amount, sports or sex did not predict tendinopathy development (p>0.05). Incidence often dinopathy and intratendinous alterations in adolescent athletes is low in ATs and more common in PTs. Development of intratendinous alterations in PT is associated with tend in opathy. However, predictive factors could not be identified. KW - epidemiology KW - young athletes KW - sonography KW - vascularization KW - hypoechogenicities Y1 - 2018 U6 - https://doi.org/10.1055/a-0633-9098 SN - 0172-4622 SN - 1439-3964 VL - 39 IS - 9 SP - 726 EP - 732 PB - Thieme CY - Stuttgart ER -