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Neuromuscular Function

Neuromuscular Function. Warming up and fatigue. Do Now: Answer the following questions: Why should we warm up? Why do muscles fatigue?. Why do you need to warm up?. Enhance your performance Injury prevention Mental preparation. Why do you need to warm up?. Enhance your performance

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Neuromuscular Function

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  1. Neuromuscular Function Warming up and fatigue

  2. Do Now: Answer the following questions: Why should we warm up? Why do muscles fatigue?

  3. Why do you need to warm up? • Enhance your performance • Injury prevention • Mental preparation

  4. Why do you need to warm up? • Enhance your performance • Increase blood flow to muscles • Increase temperature (‘warm up’) of muscles. • Hemoglobin efficiency increases with increased temperature. As a result more oxygen can be distributed. - Faster contractions.

  5. Why do you need to warm up? • Injury prevention • Can increase tears without warm up • Heart readiness – can get abnormal heart rhythms because of low blood supply to heart!!

  6. Why do you need to warm up? • Mental preparation • Getting your ‘head ready’ - game face on!----JakeBrown • Readies athlete for pain, discomfort…gains in strength, speed….

  7. Why do muscle fatigue? • Decreased ATP • Decreased glycogen/ lactic acid build up • Micro-trauma to muscle tissue • Dehydration mineral depletion

  8. Why do muscle fatigue? • ATP : needed for short bursts of energy. (throw, sprint) – anaerobic Released energy Stored energy Creatine is an amino acid that supplies energy to cells. CK- creatine kinase- enzyme that helps reaction occur. http://anaerobic clip

  9. Why do muscle fatigue? • Glycogen depletion- Glycolysis or aerobic respiration Cardiovascular exercise aerobic clip ‘hitting the wall’ out of energy Lactic Acid build up – b/c oxygen used up.

  10. Why do muscle fatigue? • Micro-trauma: small tears in muscle • Dehydration: water is needed for reactions to occur

  11. Why do muscle fatigue? • Mineral depletion: help with signal transmission calcium deficiency: bones weak, prone to muscular aches and cramps. magnesium deficiency: energy levels go down. Iron deficiency: is a mineral that is used in manufacturing hemoglobin. potassium deficiency: muscular aches, acne, anxiety and memory loss. Zinc deficiency: wound healing & immune system problems.

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