کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6207495 | 1265662 | 2013 | 6 صفحه PDF | دانلود رایگان |
The purpose of the study was to examine the effects of exercise-induced muscle damage on the biomechanics of the sit-to-stand transition (STST). Seventeen volunteers participated in an intense, eccentric based, muscle damage protocol of knee flexors and extensors via an isokinetic dynamometer. Kinematic and kinetic data were collected using a 10-camera optoelectronic system and a force plate 24Â h before and 48Â h after exercise. Statistical analysis showed significant differences in kinematic and kinetic parameters after exercise. Forty-eight hours after exercise, the strategy did change and the knee joint relative effort level increased significantly. Pelvic and hip kinematics, in conjunction with the knee extension joint moment, provided an efficient mechanism to support the participants' locomotor system during the STST. These results may be of great significance in designing supportive devices, as well as composing rehabilitation programs for young or elderly individuals, with various musculoskeletal pathologies.
⺠The key point for real independence is the load/capacity ratio (relative effort). ⺠Muscle damage decreases the capacity and increases the relative effort of STST. ⺠Muscle damage triggers an efficient mechanism of bi-articular muscles.
Journal: Gait & Posture - Volume 38, Issue 1, May 2013, Pages 62-67