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Titre : | The effect of fatigue and velocity on the relative timing of hamstring activation in relation to quadriceps (2012) |
Auteurs : | Maryam Abbaszadeh-Amirdehi ; Khosro Khademi-kalantari ; Saeed Talebian ; et al. |
Type de document : | Article |
Dans : | Journal of Bodywork and Movement Therapies (2012/4, 2012) |
Article en page(s) : | pp. 488-492 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Genou ; Tendons |
Mots-clés: | Muscle fatigue ; Tendons ; Quadriceps muscle ; Knee ; Fatigue musculaire ; Muscle quadriceps fémoral |
Résumé : | Inter-muscular coordination has an important role in proper function and prevention of injuries in the knee joint. The purpose of this study was to characterize the effect of velocity and fatigue on the relative activation onset of hamstring to quadriceps muscles during knee extension. Thirty one healthy and non-athletic volunteers (24 women, 7 men) were recruited for the study. The onset time of vastus medialis, vastus lateralis, rectus femoris, medial and lateral hamstring were measured during maximum voluntary extension of the knee joint at velocities of 45°/s, 150°/s & 300°/s before and after fatigue and the mean delay onset of all pairs of H-Q were measured. A two-way repeated measures ANOVA test was used to compare across the mean delayed onset of hamstring related to quadriceps muscles at various velocities. Hamstring muscle showed a delayed activation related to quadriceps and increasing the velocity of shortening has a prominent effect on the inter-muscular coordination with early activation of hamstring related to quadriceps muscles (F = 6.7, p |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S1360859212001702 |