Flashcards
Effects of exercise on physiological function
Cards in this deck (13)
- 1Factors affecting energy useForce/resistance,
duration,
rate of work,
steady/intermittent,
individual differences - 2Chemical factors during exerciseLevels of PO2 and PCO2 cannot answer all changes,
PO2 does not stimulate next breath,
PO2 usually maintained above 100mmHg - 3Non-chemical factors during exerciseRapid response,
plateau of 20 secs,
minute ventilation increases,
rapidly decreases (to 40%) after exercise - 4Neurogenic factors during exerciseCortical stimulation from medulla oblongata,
influence of recepters in joints/tissue - 5Temperature factors during exerciseVentilation is increase in prolonged exercise
- 6Methods of measuring response to exerciseBreathing rate,
tidal volume,
minute volume,
observational changes (colour etc) - 7Responses to light/moderate exerciseLinear increase between PV and oxygen consumed,
PV increases dis-proportionally when exercise is not in a steady state,
energy consumption of breathing is low - 8Responses to intense exerciseVentilation can cope with maximal exercise,
Ph level regulation has narrow limits,
Ph buffering more difficult during anaerobic exercise - 9Effects on blood pressureResistance to blood flow increases,
as does cardiac output,
BP increase during systole - 10Steady-rate exerciseVasodilation occurs during rhythmic muscle activity,
alternate muscle contraction propels blood through the circuit,
rapid increase of SBP in the first few minutes,
SBP gradually declines,
DBP remains constant - 11Graded exerciseSBP increases linearly with exercise intensity,
DBP remains constant,
reduced peripheral resistance - 12BP in upper body exerciseProduces higher BP than leg exercise,
arm muscle mass and vasculature has higher resistance - 13Page 6-
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- Physiology Flashcards on Effects of exercise on physiological function, created by jonny1311 on 12/06/2013.
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