chapter 11 - chapter 11 biomechanics Study online at...

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1. result of muscles applying forces to bones through the process of tension development. motion of the human system 2. movement involves the cooperation of three major systems: 1. Neurological system 2. Muscular system 3. Skeletal system 3. tension generated within muscle, but bone doesn't move static muscle action 4. load torque = muscle torque generated static muscle action 5. body segment moves during generation of muscle tension. dynamic muscle action 6. muscle torque generated > load torque (length is shorter) concentric muscle action 7. muscle torque generated < load torque (length is longer) eccentric muscle action 8. 2 major factors affecting whole muscle tension 1. # of fibers contracting 2. tension developed by each fiber contracting 9. relationship between length before stimulation and subsequent tetanic tension development length-tension relationship 10. For each muscle, an optimal length exists for developing tetanic tension. This corresponds with max overlap of ____ and ____ thick and thin filaments 11.
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