8. Alcohol_for class

8. Alcohol_for class - Control - Alcohol 29% reduction –...

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9/20/2011 1 Types of Muscular Contraction Isometric Concentric Eccentric Delayed-Onset Muscle Soreness (DOMS) r Felt 12 to 48 hours after strenuous exercise r Results primarily from eccentric action r Theories: c Muscle tissue damage c Local inflammation c Edema (accumulation of fluid in muscle) c Connective tissue damage
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9/20/2011 2 DOMS and Performance r DOMS reduces force-generating capacity of muscles r Maximal force-generating capacity returns after days or weeks r Muscle glycogen synthesis is impaired with DOMS 70 Eccentric contractions - 3 sec each - 12 sec rest
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9/20/2011 3 3 x 100 max eccentric contractions over 60 deg
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9/20/2011 4 30 min post exercise 1 g / kg = 212 ± 51 ml ~8 shots (if you lived in the New Zealand) ~5 for US Drank over 90 min. Isometric 150 170 190 210 230 250 270 290 Pre 36 hr post 60 hr post N-m Damaged - No Alcohol Damaged - Alcohol Control - No Alcohol
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Unformatted text preview: Control - Alcohol 29% reduction – no alcohol 41% reduction – alcohol ~12% greater reduction Concentric 120 140 160 180 200 220 240 Pre 36 hr post 60 hr post Damaged - No Alcohol Damaged - Alcohol Control - No Alcohol Control - Alcohol 32% reduction – no alcohol 43% reduction – alcohol ~11% greater reduction 9/20/2011 5 Eccentric 120 170 220 270 320 370 Pre 36 hr post 60 hr post N-m Damaged - No Alcohol Damaged - Alcohol Control - No Alcohol Control - Alcohol 26% reduction – no alcohol 45% reduction – alcohol ~19% greater reduction Mechanisms of Action • Interaction of Muscle contraction and central nervous system – neurotransmission • Sarcoplasmic Ca transport impaired with acute alcohol exposure therefore muscle contraction impaired • Impaired recovery process...
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This note was uploaded on 09/25/2011 for the course KINS 3163 taught by Professor Staff during the Fall '11 term at Arkansas.

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8. Alcohol_for class - Control - Alcohol 29% reduction –...

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