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Titre : | Torque-angle curve of the knee flexors in athletes with a prior history of hamstring strain (2022) |
Auteurs : | Kentaro Mikami ; Kentaro Mikami ; Mina Samukawa ; Kensuke Oba ; Kentaro Nakamura ; Yuki Suzumori ; Yuko Ishida ; Hisashi Matsumoto ; Yoshimitsu Aoki ; Tomoya Ishida ; Masanori Yamanaka ; Harukazu Tohyama |
Type de document : | Article |
Dans : | Physical therapy in sport (Vol. 54, March 2022) |
Article en page(s) : | p. 29-35 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Articulation du genou ; Athlètes ; Dynamomètre pour la mesure de la force musculaire ; Études transversales ; Force musculaire ; Genou ; Humains ; Moment de torsion ; Muscles de la loge postérieure de la cuisse ; Muscles squelettiques |
Mots-clés: | hamstring injury ; eccentric muscle action ; high angular velocity ; dynamometer |
Résumé : | Objectives To investigate the knee flexor torque-angle curve after hamstring strain injury using different muscle action types and angular velocities. Design Cross-sectional. Setting Controlled laboratory. Participants Thirteen collegiate athletes injured hamstring strain (21.0 + 0.8 years; 173.9 + 6.5 cm; 70.1 + 10.5 kg). Main outcome measures Concentric and eccentric knee flexor torque was measured at 60 & 300°/sec. Peak torque and average torque every 10° were determined from torque-angle curve and injured side was compared with non-injured side. Results No significant differences were found in the concentric muscle actions. However, the eccentric peak torque was significantly lower on the injured side at 60°/sec (p = 0.048) and at 300°/sec (p = 0.002). The average eccentric torque was significantly lower on the injured side at 60°/sec from 10° to 20° of knee flexion (p = 0.012?0.018) and at 300°/sec from 10° to 60° of knee flexion (p = 0.005?0.049). Conclusion The knee flexor torque-angle curve changes with eccentric muscle action after hamstring injury. Eccentric torque declines were close to full knee extension at 60°/sec and a wide range of knee flexion at 300°/sec. The assessment and rehabilitation of eccentric hamstring strength may be important to consider the effect of the angular velocity after hamstring strain injury. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S1466853X21001917 |