ENS 304 Lecture Notes - Lecture 17: Tensegrity, Ground Substance, Elastin
10 Apr 2020
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Determine one repetition maximum (1 rm) on given exercise = maximal weight lifted for one repetition. Use 80% of measured 1 rm or 85% of measured 1 rm - perform as many repetitions as possible to point of failure. Genetics - changing little from childhood to middle age. Aging - changes the ratios of slow- and fast-twitch fibers in body. Loss of fast-twitch fibers outpaces loss of slow-twitch fibers. More pronounced in lower extremity than in upper extremity. Training adaptations - can create small shifts (<10%) in myosin isoforms: Type i fibers also demonstrate hypertrophy with overload and can increase in cross-sectional area (size) with training. Fascia was once envisioned as a seamless sheath of tissue located beneath skin, enveloping and containing the body. Forms a web of densely woven, incredibly tough connective tissue that is everywhere - under skin, embedded within and surrounding every muscle, bone, nerve, blood vessel, and organ.
