Stretch-shortening cycle function of the knee extensor muscle-tendon unit during the power clean
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.
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Aiheet: | painonnosto biomekaniikka tekniikka analyysi elokuvaus polvi lihas toiminta enkeli |
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Aihealueet: | biologiset ja lääketieteelliset tieteet voima ja nopeus urheilu |
Julkaisussa: | ISBS - Conference Proceedings Archive (Konstanz) |
Toimittajat: | F. Colloud, M. Domalain, T. Monnet |
Julkaistu: |
Poitiers
International Society of Biomechanics in Sports
2015
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Vuosikerta: | 33 |
Numero: | 1 |
Sivuja: | 1019-1021 |
Julkaisutyypit: | kongressin muistiinpanot elektroninen lehti artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |