KIN 2504 Chapter : KIN 2504 Class Notes Chapters 4&5
15 Mar 2019
School
Course
Professor
Document Summary
Parts of a muscle: skeletal muscle voluntary, it allows you to move and create body heat, cardiac muscle involuntary, surrounds the heart, smooth muscle involuntary, surrounds the walls of vessels and organs. Skeletal muscle: each muscle is surrounded by a sheet of connective tissue, which forms tendons to connect the muscle to bone. Myofibril contains actin and myosin (contractile protein); allows for contraction by sliding together. Motor units & muscle contraction strength: 1 motor nerve that stimulate multiple muscle fibers (motor unit) How can regular resistant training improve my fitness and wellness. Neural improvements ( more nerves stimulating more fibers increases actin and. Improves body composition, weight management and body image. Atrophy when a muscle decreases in size. Increase in lean tissue= increase in metabolic rate. Helps maintain physical function with aging; ages between 25-30 people start to loose muscle mass. How to assess muscular strength: 1 rm (repetition max) test.
