KAAP430 Chapter Notes - Chapter 8: Cardiorespiratory Fitness, Vagal Tone, Exercise Intensity
21 Mar 2017
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Document Summary
Primary goal: increase bf to working muscle. Changes in all components of the cv system: rest acute exercise. Endurance exercise training increase in parasympathetic (vagal) tone. Increased body temperature; altitude increased hr. Just before start of exercise pre-exercise hr usually increases above normal resting values. Hr increases directly in proportion to the increase in exercise intensity until near- maximal exercise intensity. Approaching maximal exercise intensity: hr begins to plateau (approaches hrmax). Hrmax highest hr value achieved in an all-out effort to the point of volitional fatigue. Reliable value: remains constant from day to day. Steady-state hr plateau that occurs when hr increases while exercise intensity remains constant at any submaximal workload. Optimal hr for meeting circulatory demands at that specific rate of work. Increase in submaximal workload new steady-state hr reached in 2-3 minutes: lower steady-state hr at a given exercise intensity: predictor of cardiorespiratory fitness. Hrmax approached at near-maximal-to-maximal exercise intensities sv determines cardiorespiratory fitness.
