7.2 recovery,altitude and heat Flashcards
PE
What does EPOC stand for?
Excess Post-exercise oxygen consumption
what stores are depleted at the end of performance?
Oxygen
ATP
PC
Glycogen
what increases by the end of performance?
Lactic acid levels —> leads to exhaustion
what’s the primary aim of body after exercise?
returning body back to pre-exercise condition.
free blood, muscle and tissues of by-products
what energy system does the body use post exercise?
Aerobic energy system for EPOC
oxygen deficit?
volume of oxygen required to complete an activity entirely aerobically.
stage of oxygen consumption during exercise:
A). Oxygen deficit
B). Oxygen consumption during exercise
stage of oxygen consumption post exercise:
C). Fast alactacid component of recovery
D). Slow lactacid component of recovery
what effect EPOC?
Epoc alway present and only effected by Exercise intensity and duration
EPOC during low intensity exercise?
small O2 deficit
limited use of anaerobic system
(opposite during high intensity)
Slow lactacid component of recovery?
Occurs after the fast component of recovery , show volume of O2 needed (5-8 litres) to complete complex and time consuming;
-Removal of lactic acid and replenishment of glycogen
-Provision of energy to maintain ventilation, circulation and body temperature.
Fast alactacid component of recovery?
-first stage of recovery
-Accounts for 10% of EPOC
-Show initial volume of Oxygen 1-4litre required
+Replenishes blood and muscle oxygen
*during exercise; O2 dissociates from haemoglobin in blood stream and myoglobin in muscle cells to fuel glycolysis. First minute = resturate blood stream O2 –> haemoglobin and in 3 minutes restoring oxy-myoglobin link in muscle cells.
+Resynthesis ATP and PC store
*during exercise:Muscle cells store ATP and PC = depleted, which replenishes ATP-PC system. first 3 minutes EPOC comtinues –>energy for resyntheis. Phosphagen restored ( within 30 seconds = 50%) for Phosphate to be used with ADP —> ATP and PC
What are the jobs of slow alactacid component of recovery to focus on after the first stage?
+Ventilation and Circulation;
-during exercie;
respiratory rate, depth and HR is significantly high to meet demand of
O2.
-post exercise;
they remain elevated but gradually decreases to rest level to maximie
O2 delivery and remove waste product.