BPK 306 Lecture Notes - Lecture 24: Longitudinal Study, Neural Adaptation, Mechanical Ventilation
5 Dec 2017
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Document Summary
Lecture 24 skeletal muscle: plasticity, use, and disuse. The biochemical and structural makeup of skeletal muscle demonstrates. Plasticity : or in other words -> muscle can be altered in response to removal of weight bearing forces or to the addition of physical activity. Adaptations may include changes in muscle fiber size (number of myofibrils) and/or biochemical machinery (ex. enzymes) Adaptation to strength training -> increased muscle strength. Loss of muscle mass with age -> decrease in growth hormone, inactivity: loss of lean muscle mass may impair a person"s ability to perform functional tasks and/or recreational pursuits. Trainability of older muscle: compared to younger individuals -> older individuals can achieve the same relative (%) gains in strength and aerobic capacity with resistance or aerobic training, define electrical stimulation parameters that cause plasticity. Plasticity -> the ability of skeletal muscle to adapt to the demands imposed on it, muscle has a large capacity for plasticity.
