Publikationsdatenbank

Müller, E.;Pröller, P.;Ferreira-Briza, F.;Aglas, L.;Stöggl, T.. (2019). Effectiveness of Grounded Sleeping on Recovery After Intensive Eccentric Muscle Loading. Front Physiol. 10():35.

Abstract

Purpose: We set out to investigate the effectiveness of grounded sleeping on the time course of recovery with respect to muscle soreness and athletic performance after intensive eccentric muscle loading. Methods: Twenty-two healthy participants were recruited for this study and randomly assigned to an experimental group (GRD, grounded sleeping, n = 12) or control group (UGD, sham-grounded sleeping, n = 10) to evaluate the effects of 10 days recovery with GRD vs. UGD following a single intensive downhill treadmill intervention in a triple-blinded (participant, tester, and data analyst) manner. To operationalize recovery a test battery was performed at baseline and on days 1, 2, 3, 5, 7, and 10 post-intervention: (1) perception of muscle soreness (VAS), (2) creatine kinase blood levels (CK), (3) maximum voluntary isometric contraction (MVIC) for both legs, (4) counter movement jump (CMJ) and drop jump (DJ) performance. Furthermore, in four participants blood was sampled for detailed analysis of complete blood counts and serum-derived inflammation markers. Results: The downhill treadmill running intervention led to distinct changes in all measured parameters related to fatigue. These changes were detectable already 5-min post intervention and were not fully recovered 10 days post intervention. GRD led to less pronounced decrease in performance (CMJ, MVIC) and less increase with respect to CK compared with UGD (all P < 0.05). Detailed blood samples demonstrated that grounded sleeping modulates the recovery process by (a) keeping a constant hemoconcentration, as represented by the number of erythrocytes, and the hemoglobin/hematocrit values; and (b) by the reduction of muscle damage-associated inflammation markers such as, IP-10, MIP-1alpha, and sP-Selectin. Conclusion: The downhill running protocol is a feasible methodology to produce long term muscle soreness and muscular fatigue. GRD was shown to result in faster recovery and/or less pronounced markers of muscle damage and inflammation. GRD might be seen as a simple methodology to enhance acute and long-term recovery after intensive eccentric exercises.

Web

https://www.ncbi.nlm.nih.gov/pubmed/30745882

Martinez, A.;Jahnel, R.;Buchecker, M.;Snyder, C.;Brunauer, R.;Stöggl, T.. (2019). Development of an Automatic Alpine Skiing Turn Detection Algorithm Based on a Simple Sensor Setup. Sensors. 19(4):.

Abstract

In order to gain insight into skiing performance, it is necessary to determine the point where each turn begins. Recent developments in sensor technology have made it possible to develop simpler automatic turn detection methodologies, however they are not feasible for regular use. The aim of this study was to develop a sensor set up and an algorithm to precisely detect turns during alpine ski, which is feasible for a daily use. An IMU was attached to the posterior upper cuff of each ski boot. Turn movements were reproduced on a ski-ergometer at different turn durations and slopes. Algorithms were developed to analyze vertical, medio-lateral, anterior-posterior axes, and resultant accelerometer and gyroscope signals. Raw signals, and signals filtered with 3, 6, 9, and 12 Hz cut-offs were used to identify turn switch points. Video recordings were assessed to establish a reference turn-switch and precision (mean bias = 5.2, LoA = 51.4 ms). Precision was adjusted based on reference and the best signals were selected. The z-axis and resultant gyroscope signals, filtered at 3Hz are the most precise signals (0.056 and 0.063 s, respectively) to automatically detect turn switches during alpine skiing using this simple system.

Web

https://www.ncbi.nlm.nih.gov/pubmed/30795560

Jonsson, M.;Welde, B.;Stöggl, T. L.. (2019). Biomechanical differences in double poling between sexes and level of performance during a classical cross-country skiing competition. Journal of Sports Science. ():1-9.

Abstract

Biomechanical differences in double poling (DP) between sex and performance level were investigated in female and male cross-country skiers during a classical race (10/15 km). Skiers were divided into faster and slower on basis of race performance: females faster (n=20), females slower (n=20), males faster (n=20), and males slower (n=20). Based on video analysis while DP in a flat section of the track, joint and pole angles at pole plant (PP) and pole-off, cycle characteristics and the use and coordination pattern of heel-raise (raise of heels from the ground to have a higher body position at PP) were analysed. Faster females and males had 4.3% and 7.8% higher DP velocity than their slower counterparts (both P<0.001). Faster males had 6.5% longer cycles than slower males (P<0.001). Faster skiers stopped heel-raise later than slower skiers (females: 2.0+/-3.4% vs. -1.0+/-3.5%, P<0.05; males: 3.9+/-2.4% vs. 0.8+/-3.2% of cycle time in relation to PP, P<0.001). At PP, faster skiers and male skiers had a smaller pole angle and greater ankle to hip and ankle to shoulder angle with respect to vertical, resulting in a more distinct forward body lean. However, the majority of the differences are likely due to higher DP velocity.

Web

https://www.ncbi.nlm.nih.gov/pubmed/30747038

Finkenzeller, Thomas;Würth, Sabine;Müller, Erich;Amesberger, Günter. (2019). Ageing‐related changes of cognitive performance and stress regulation in high functioning elderly individuals. Scandinavian Journal of Medicine & Science in Sports. ():.

Abstract

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Amesberger, Günter;Finkenzeller, Thomas;Müller, Erich;Würth, Sabine. (2019). Ageing‐related changes of the relationship between the physical self‐concept and the physical fitness in elderly individuals. Scandinavian Journal of Medicine & Science in Sports. ():.

Abstract

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Gonaus, C.;Birklbauer, J.;Lindinger, S. J.;Stoggl, T. L.;Muller, E.. (2019). Changes Over a Decade in Anthropometry and Fitness of Elite Austrian Youth Soccer Players. Front Physiol. 10():333.

Abstract

Increases in physical (e.g., high-intensity running and sprinting), technical (e.g., passing rate), and tactical (e.g., player density) aspects made elite level soccer more challenging within the past years. The aim of the study was to evaluate whether these evolutions are also been reflected in changes in anthropometric and fitness characteristics between former (2002 to 2005) and current (2012 to 2015) elite Austrian youth development center (U13 to U14) and soccer academy (U15 to U18) players. A battery of anthropometric, general and soccer-specific fitness tests was conducted annually at the end of each year. Independent t-test and Cohen's d (ES) were calculated to compare the two four-year periods (2530 vs. 2611 players) at each age group separately. Current players were significantly faster in 20 m sprint (ES = 0.26-0.50) and reaction test (ES = 0.15-0.39, except for U18), but less flexible at sit-and-reach (ES = -0.19 to -0.55), in all age categories. Whereas height (ES = 0.26-0.32), body mass (ES = 0.11-0.18) and countermovement jump (ES = 0.24-0.26) increased significantly at youth development center level, current academy players performed superior at shuttle sprint (ES = 0.21-0.59), hurdles agility run (ES = 0.24-0.49), and endurance run (ES = 0.11-0.20). These changes over time in speed, change-of-direction ability, lower-body power, coordination, and endurance were attributed to modern training approaches (e.g., modified games and change-of-direction drills) and modifications in selection politics (e.g., coaches favor speed and decision-making skills).

Web

https://www.ncbi.nlm.nih.gov/pubmed/30984022;https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6447713/pdf/fphys-10-00333.pdf

Eggerstorfer, J., Oesterhelt, V. & Amesberger, G.. (2018). Schiedsrichter sein im Volleyball. . (3):3-9.

Abstract

Sorry no Abstract available!

Kröll, Josef;Lasshofer, Michael;Fritz, Julian;Schwameder, Hermann. (2018). Assessing vertical Force-Velocity Profiles: Are two considered loads under specific circumstances enough?. . ():72.

Abstract

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Farana, Roman ;Exell, Timothy;Strutzenberger, Gerda;Irwin, Gareth. (2018). Technique selection of fundamental skills in young female gymnasts: Elbow and wrist joint loading during the cartwheel and round off. European Journal of Sport Science. 18(3):423-430.

Abstract

Sorry no Abstract available!

Web

https://www.tandfonline.com/doi/full/10.1080/17461391.2018.1424941

Farana, Roman;Strutzenberger, Gerda;Exell,Timothy ;Skypala,Jiri ;Wiltshire, Huw;Irwin, Gareth. (2018). Gender differences in technique: Elbow and wrist joint loading during round off in gymnastics. . 36():.

Abstract

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Alexander, Nathalie;Strutzenberger, Gerda;Kröll, Josef;Barnett, Cleveland;Schwameder, Hermann. (2018). Joint moments during downhill and uphill walking of a transfemoral amputee with a hydraulic articulating and a rigid prosthetic ankle - a case study. Journal of Prosthetics and Orthotics. 30(1):46-54.

Abstract

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Wagner, H.;Fuchs, P.;Fusco, A.;Fuchs, P.;Bell, W. J.;Duvillard, S. P.. (2018). Physical Performance in Elite Male and Female Team Handball Players. Int J Sports Physiol Perform. ():1-24.

Abstract

PURPOSE: Biological differences between men and women are well known; however, literature-addressing knowledge about the influence of sex to specific and general performance in team handball is almost nonexistent. Consequently, the aim of the study was to assess and compare specific and general physical performance in male and female elite team handball players, to determine if the differences are consequential for general compared to specific physical performance characteristics and the relationship between general and specific physical performance. METHODS: Twelve male and ten female elite team handball players performed a game based performance test, upper- und lower-body strength and power tests, a sprinting test, and an incremental treadmill-running test. RESULTS: Significant differences (P<.05) between male and female players were found for peak oxygen uptake and total running time during the treadmill test, 30m sprinting time, leg extension strength, trunk and shoulder rotation torque, counter movement jump height as well as offense and defense time, ball velocity and jump height in the game based performance test. An interaction (sex x test) was found for time and oxygen uptake and except shoulder rotation torque and ball velocity in females, we found only a low relationship between specific and general physical performance. CONCLUSION: The results of the study revealed that male players are heavier, taller, faster, stronger, jump higher and have a better aerobic performance. However, female players performed relatively better in the team handball specific tests compared to the general tests. Our findings also suggest that female players should focus more on strength training.

Wagner, H.;Fuchs, P.X.;Von Duvillard, S. P.. (2018). Specific physiological and biomechanical performance in elite, sub-elite and in non-elite male team handball players. J Sport Med Physic Fitness. 58(1-2):66-72.

Abstract

Sorry no Abstract available!

Nüesch, C.;Overberg, J. A.;Schwameder, H.;Pagenstert, G.;Mundermann, A.. (2018). Repeatability of spatiotemporal, plantar pressure and force parameters during treadmill walking and running. Gait & Posture. 62():117-123.

Abstract

BACKGROUND: Instrumented treadmills with integrated pressure mats measure spatiotemporal, pressure and force parameters and are often used to investigate changes in gait patterns due to injury or rehabilitation. RESEARCH QUESTION: What is the within- and between-day repeatability of such an instrumented treadmill for spatiotemporal parameters, peak pressures and forces during walking and running? METHODS: Treadmill gait and running analysis were performed at 5.0, 6.5, and 9.0km/h in 33 healthy adults (age: 31.6+/-7.4years; body mass index: 23.8+/-3.2kg/m(2)) once on day 1 and twice on day 7. For all three speeds, intraclass correlation coefficents (ICC) and smallest detectable differences (SDC) corresponding to 95% limits of agreement were calculated for spatiotemporal parameters and peak pressures and forces in the heel, midfoot, and forefoot regions. RESULTS: All spatiotemporal parameters and peak forces in the heel, midfoot, and forefoot regions showed a good within- and between-day repeatability (ICCs>0.878) for all gait speeds with within-day repeatability being generally higher. For peak pressures, only the heel and forefoot regions but not the midfoot region, showed good repeatability (ICC>0.9) at all gait speeds. SDCs ranged from 1.5 to 2.5 degrees for foot rotation, 4.4 to 6.6cm for stride length, 0.7 to 2.5% for length of stance phases, and 2.8 to 9.2N/cm(2) for peak pressures in all foot regions. For walking, SDCs of peak forces in the heel, midfoot and forefoot regions were below 60N, and for running below 135N. SIGNIFICANCE: Except for peak pressures in the midfoot, spatiotemporal and kinetic gait parameters during walking and running showed a good within- and between-day repeatability. Hence, the investigated treadmill is suitable to analyze gait patterns and changes in gait patterns due to interventions.

Oesterhelt, V.. (2018). Förderung der Beobachtungskompetenz in der Sportlehrerbildung. Eine theoriebezogene hochschuldidaktische Konzeption im Kontext Forschenden Lernens. . ():81-100.

Abstract

Im Kontext akademischer Professionalisierung zur Anbahnung einer wissenschaftlichen bzw. analytischen Grundhaltung von Lehrpersonen richtet sich der Fokus des Beitrags auf die Förderung von Beobachtungskompetenz. Begründet wird dieser Schwerpunkt auf drei Ebenen: als Bestandteil einer grundlegenden wissenschaftlichen Kompetenz, als Basis für pädagogisches Handeln in einem schwach strukturierten Berufsfeld und, angesichts biographischer Hintergründe der Studierenden, als ein domänenspezifisch in besonderem Maße relevantes Element der LehrerInnenbildung im Fach Sport. Die dargestellte hochschuldidaktische Konzeption basiert auf theoretischen Bezügen aus dem Forschungskontext zur professionellen Wahrnehmung in der LehrerInnenbildung. Daraus abgeleitete Intentionen für das Begleitseminar zum Praxissemester Fachdidaktik Sport richten sich auf eine strukturierte Beobachtung von unterrichtsbezogenen Handlungssituationen, auf die Auseinandersetzung mit Unterrichtsbeobachtungen als Reflexionsfolie für eine theoretisch gestützte Diskussion professionellen Handelns sowie auf den ebenfalls theoriegestützten Entwurf von Handlungsalternativen. Gerahmt wird die eigenständige forschungsbezogene Aktivität der Studierenden im schulpraktischen Bezug anhand literaturbasierter Beobachtungs- und Arbeitsaufträge, die die Grundlage für die vertiefende Auseinandersetzung im universitären Begleitseminar bilden.

Oesterhelt, V.. (2018). Das Praxissemester in Thüringen im ‚Jenaer Modell der Lehrerbildung' aus Sicht des Faches Sport. . ():173-184.

Abstract

Der Beitrag beschreibt das ‚Jenaer Modell der Lehrerbildung‘, mit dessen Einführung im Bundesland Thüringen ab dem Studienjahr 2007/2008 ein grundständiges modularisiertes Studium mit abschließendem Staatsexamen für das gymnasiale Lehramt implementiert wurde. Dargestellt wird u. a. die Struktur des integrierten, über ein Schulhalbjahr reichenden Praxissemesters im fünften oder sechsten Semester, das in seiner Verlaufsstruktur eine Verbindung aus Hospitations- und Mitwirkungspraktikum vorsieht und von einer universitären Einführungs- und Auswertungswoche sowie von wöchentlichen Begleitveranstaltungen gerahmt wird. Das ‚Jenaer Modell‘ versteht sich dabei als wissenschaftsbasierte und forschungsorientierte LehrerInnenbildungskonzeption, in der Forschendes Lernen ein konstitutives hochschuldidaktisches Element im Studienverlauf bildet. Dies kommt auch im Praxissemester für das Fach Sport, in Lehrveranstaltungen mit jeweils unterschiedlicher Akzentuierung, zum Tragen. Im Kontext der Entwicklungen der vergangenen Jahre findet der Gedanke einer wissenschaftlich fundierten, wissenschaftsorientierten sowie praxisbezogenen reflexiven LehrerInnenprofessionalisierung weitestgehend Konsens. Die Umsetzung an den verschiedenen universitären Standorten in Deutschland zeigt sich allerdings durch eine hohe strukturelle Variation geprägt. Deutlich wird dies auch anhand der sehr unterschiedlichen Ausgestaltung der in jüngerer Vergangenheit implementierten Praxissemester (vgl. u. a. Gröschner, Müller, Bauer, Seidel, Prenzel, Kauper und Möller, 2015; Weyland, 2017). Als Beispiel einer möglichen Ausgestaltung stellt der vorliegende Beitrag die Konzeption der LehrerInnenbildung für das Gymnasial- und Regelschullehramt mit integriertem Praxissemester in Thüringen dar. Für einen Vergleich der unterschiedlichen, bundeslandspezifischen hrerInnenbildungskonzeptionen wird zunächst die allgemeine Struktur des ‚Jenaer Modell der Lehrerbildung‘ in Thüringen kurz dargestellt. Anschließend folgt die Erläuterung zentraler Merkmale des Praxissemesters sowie der fachspezifischen Studienelemente für das Fach Sport, wobei sich der Blick auf den Ansatz Forschenden Lernens richtet, das als Kerngedanke einer wissenschaftsorientierten Theorie-Praxisverzahnung im ‚Jenaer Modell’ konsequent angelegt ist.

Oesterhelt, V.;Amesberger, G.. (2018). Unterrichtsbeispiele - Evaluationsaufgaben für den Bildungsstandard Bewegung und Sport. . ():139.

Abstract

Sorry no Abstract available!

Web

http://www.bewegung.ac.at/fileadmin/unterricht/Aufgabenbeispiele-Evaluationsaufgaben_2018_final.pdf

Oesterhelt, V.;Amesberger, G.. (2018). Kompetenzorientiert unterrichten und evaluieren. . (2):3-9.

Abstract

Sorry no Abstract available!

Kurz, Gunther;Ast, Benjamin;Strutzenberger, Gerda;Stein, Thorsten;Schwameder, Hermann. (2018). Biomechanical differences of cutting movements between football and American football players interpreted in relation to injury prevention . . ():138.

Abstract

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Amesberger, Günter. (2018). Differentialdiagnostische Aspekte im Kontext sportpsychologischer Beratung vor dem Hintergrund des CHC-Modells [Differential diagnostic aspects in the context of sport psychological counseling against the background of the CHC-model]. . ():78.

Abstract

Sorry no Abstract available!

Finkenzeller, Thomas. (2018). Exekutive Funktionen im CHC-Modell unter Berücksichtigung von ereigniskorrelierten Potentialen [Integration of executive functions into the CHC-model considering event-related potentials]. . ():77.

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Landkammer, Yvonne;Sassmann, Robert;Rieder, Florian;Strutzenberger, Gerda;Pröller, Patrick;Urner, Luisa;Wicker, Anton. (2018). Does laod reduction via the AlterG® treadmill alter muscle activity patterns during walking ?. . ():.

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Pühringer, Martin. (2018). Ventilatorische Indices und Fettstoffwechsel. . ():233-237.

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Finkenzeller, Thomas;Hofer, Andreas;Amesberger, Günter. (2018). Inhibition and working memory of alpine skiers, soccer players and martial artists. . ():93-99.

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Barnett, Cleveland;Brown, Olivia H.;Bisele, Maria;Brown, Marcus;De Asha, Alan R.;Strutzenberger, Gerda. (2018). Does the use of a hydraulically articulating ankle-foot attachment improve gait in individuals with unilateral trantibial amputation?. . ():.

Abstract

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