BIOL 103 Lecture 3: BIO 103_Week 3

• School: Queen's University
• Department: Biology
• Course: BIOL 103
• Professor: Virginia K Walker

Document Summary

Bio 103 week 3 lecture 1. Strength training: contracting muscles against resistance (e. g. weight training) Increases the number of myofilaments in each muscle fiber. Not increasing muscle cell number: putting more myofilaments (stuffing more protein; both myosin and actin) into their, increase glycolytic enzymes important for short bursts of activity individual muscle fibers. Endurance training: increases the number of blood vessels in a muscle and increases the number of mitochjondria in the muscle fibers, thus increasing one"s ability to sustain muscle contraction over a long period (e. g. aerobics, running) Disuse atrophy: a decrease in the number of myofilaments in each muscle fiber (common in space: exercise in space is important; doing daily exercises using a full range of motion to try. Without constant load on your body, your muscles will begin dissolving to minimize contractile protein loss (i. e. astronaut chris hadfield: does the hadfield.