Tone Twitch Types and Titles Twitch Force and
- Slides: 13
Tone, Twitch, Types and Titles
Twitch • • • Force and Endurance depend on… FAST twitch (white)-low myoglobin *fast , powerful contractions (eye movement, fingers) *fatigue quickly Sprinting, weight lifting, tennis SLOW twitch (red)-high myoglobin *extended contractions (postural muscles) *slow to fatigue Jogging biking swimming • Intermediate-both—calf muscle, sprint or stand
Slow vs Fast Twitch Muscle fibers •
It’s what Training is all about….
Energy and ATP food +oxygen=lots of energy food –oxygen= little bit of energy • Aerobic-OXYGEN • *waste Carbon dioxide and Water vapor • Anaerobic –NO oxygen • *waste Lactic acid • Muscle FATIGUE-build up of lactic acid or lack of ATP
How were these muscles named? • • Occipitofrontalis Orbicularis oculi Sternocleidomastoid Transverse abdominis Rectus abdominis Deltoid Pectoralis major Flexor carpi radialis
Romeo and Juliet Actin and Myosin • https: //www. youtube. com/watch? v=Ktv. Ca. Ot 6 UQ • https: //www. youtube. com/watch? v=jqy 0 i 1 KX UO 4
Muscle contraction • 1. Ca+ diffuses across the sarcolemma into SR (balloons fall from ceiling) • 2. (chaperones) Troponin and tropomysin move away from binding sites (distracted by balloons) • 3. myosin heads attaches to actin strand • (acting badly he kisses myosin) • 4. myosin head moves to center of sarcomere • (carries her to the dance floor) • 5. Chaperones must use energy to separate the two
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