Kinesiology 3347A/B Chapter 3: Chapter 3

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 3347A/B
• Professor: Liardi

Document Summary

Developmental changes are predictable: based on optimizing biomechanical principles of motion & stability over time, can be seen across variety of motor skills, often produce more force, velocity or accuracy. Motion & stability: developmental changes in movement occur according to biomechanical principles, motion & stability are, two principles within the larger field of biomechanics, k(cid:374)o(cid:449)(cid:374) as the (cid:862)physi(cid:272)s(cid:863) of (cid:373)o(cid:448)e(cid:373)e(cid:374)t. Newton"s first law: an object at rest stays at rest and an object in motion stays in motion until acted upon by a force. It is harder to move: more force application is required. Increase radius of throwing arm (large cocking & follow-through) How can we increase the velocity of a tennis serve: at point of contact (racket to ball), limb must be in full extension. Is an open kinetic chain: the most distal part of chain is not fixed/attached to anything.