HLTH 200 Study Guide - Final Guide: Muscle Energy Technique, Alpha Motor Neuron, Stretching

• School: Queen's University
• Department: Health Studies
• Course: HLTH 200
• Professor: Melody Torcolacci

Document Summary

Warm up specific to the activity: avoid rituals. Should consume 10-20% of work out time. Increase elasticity of muscles and connective tissue. Release of synovial fluid to lubricate joints. Enhances muscle contraction: warm muscles move more, more oxygen to the muscles. Speeds up nerve messages: better control and response time. Reduces perceived exertion: no warm up = quicker fatigue. Improves heart function: less likely for heart attack. Never approach workout intensity: large muscle mass. Raise core body and muscle temperature: warm up improves neuromuscular function, stretch reflex. Moving too quick = pain = no gain. Contracting = tightening it: over stretching. Tearing of muscle fibers: reciprocal innervations. If one muscle is contracted, the opposite must be relaxed. If this does not occur, it will result in muscle tear. Stretching one muscle increases the efficiency of the opposite: inverse myotatic reflex. Golgi tendon organs (stretch receptors) become desentized. Once stretched, stays stretched: no external loading, hold position for 6 seconds.