Health Sciences 2711A/B Lecture Notes - Lecture 4: Basal Metabolic Rate, Ejection Fraction, Human Musculoskeletal System
1 Feb 2018
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Health and retirement study definition: no major disease, no limitation in adl (activities of daily living, ability to perform variety of tasks, telephone-based cognitive assessment. Very individual based, does not look at the person in context (i. e. in society) Primary and secondary aging: primary, senescence, progressive decline in physical function due to increasing age (i. e. , decline in cardiac or lung function, (cid:862)(cid:374)or(cid:373)al(cid:863, secondary, deterioration that is mediated by, disease (e. g. , diabetes, harmful environment/lifestyle factors (e. g. , smoking) Defining age changes: age change must be, universal, intrinsic (cid:894)(cid:374)ot due to e(cid:374)v"t(cid:895), progressive, irreversible, deleterious (leads to loss of function) Important to understand what changes are age-associated and what might be treatable. Isometric versus isotonic contractions: energy requirements (from most energy to least, concentric (bicep curl flexion) Isometric (muscle contracts but does not shorten: eccentric. *** no major age-related changes for upper body.
