KINESIOL 3U03 Lecture Notes - Lecture 5: Sarcopenia, Reuptake, Myosin
6 Apr 2017
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*what you don"t use you"re going to lose. There"s more force per cross-bridge positive breaking force: cross bridges stretch, due to lengthening under tension resisting. Eccentric strength maintenance may be due to stiffening of muscle providing stretch adds passive tension to force more resistance to stretch. The higher the velocity demands, the lower the relative tension that the aged muscle can generate. Maximum rate of force development slower in older adults. Nerve muscle junction changes with age - no. 80 steady decline: 40% decline in muscle cross-sectional area between ages 20- resulting in much less muscle tissue, decrease in muscle cross-sectional area, at same time as an increase in fat and connective tissue innervation with age. *loss in number same, but loss in size different resulting in a greater there may not be more type 1"s they just present as a greater area) > decrease in type 2 can be used to type 2 being used less with.
