John is working in a biomechanics lab and is using a force plate to measure the

Question

John is working in a biomechanics lab and is using a force plate to measure the ground reaction forces upon landing from a maximal vertical jump (shown in picture). As John's participant goes from Picture #1 to Picture #2, what type of contractions are his hip extensors performing? Isometric Concentric Eccentric Isokinetic Based on your answer for Question #16 (type of contractions occurring), what type of work would the participant's hip extensors be performing? The muscles do no work The muscles do positive work The muscles do negative work None of the above Given that John is able to capture these ground reaction forces, this experiment an example of a analysis. Kinetic Kinematic

Explanation / Answer

16. here hip extensors performing A) concentric type of contraction. because here muscle shorten to generate more force. it can change the angel of joint.

17. b) yes the muscle will do positive work. It can generate force.

18. THIS EXPERIMENT IS AN EXAMPLE OF A a) KINATIC analysis.

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