Stretch-shortening cycle function of the knee extensor muscle-tendon unit during the power clean
(Dehnungs-Verkürzungs-Zyklusfunktion der Kniestrecker-Muskel-Sehnen-Einheit während des Stoßens)
The purpose of this case study was to investigate the stretch-shortening cycle behaviour of the knee extensor muscle-tendon unit during the power clean exercise. Kinematic and kinetic were acquired as a skilled weightlifter performed several repetitions of the power clean at 85% of 1-Repetition Maximum. Knee joint angular velocity, moment, and power time-series during the pull-phase of the power clean were calculated and used to delineate between concentric and eccentric movement phases. The analysis of the kinematic time-series data showed knee extension-flexion-extension movement pattern, whereas the analysis of the kinetic data showed that the movement pattern consisted of dynamic concentric and eccentric sequences, which highlighted stretch-shortening cycle behavior of the knee extensors, and surprisingly also the knee flexor, muscle groups.
© Copyright 2015 ISBS - Conference Proceedings Archive (Konstanz). Springer. Veröffentlicht von International Society of Biomechanics in Sports. Alle Rechte vorbehalten.
Schlagworte: | Gewichtheben Biomechanik Technik Analyse Kinematografie Knie Muskel Aktivität Winkel |
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Notationen: | Biowissenschaften und Sportmedizin Kraft-Schnellkraft-Sportarten |
Veröffentlicht in: | ISBS - Conference Proceedings Archive (Konstanz) |
Herausgeber: | F. Colloud, M. Domalain, T. Monnet |
Veröffentlicht: |
Poitiers
International Society of Biomechanics in Sports
2015
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Jahrgang: | 33 |
Heft: | 1 |
Seiten: | 1019-1021 |
Dokumentenarten: | Kongressband, Tagungsbericht elektronische Zeitschrift Artikel |
Sprache: | Englisch |
Level: | hoch |