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789869
acute responses to exercise
Description
learning activity 10.2
Mind Map by
ericabramble
, updated more than 1 year ago
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Created by
ericabramble
about 10 years ago
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Resource summary
acute responses to exercise
Respiratory
Ventilation
Lungs
Tidal Volume (TV)
Respiratory Rate (RR)
V = TV x RR
Diffusion
oxygen IN
Lungs IN -alveoli
red blood cells - haemoglobin
Muscle Tissue
carbon dioxide OUT
Lungs OUT- alveoli
O2 attaches to myoglobin
transported to mitochondria
Transformed into ATP
Cardiovascular
Venous return
because blood leaves heart quick we need to have blood return just as fast
3 pumping mechanisms
muscle pump
respiratory pump
vasoconstriction
blood pressure
S/D
Systolic blood pressure
arteries contract
diastolic blood pressure
Arteries relax
Redistribution of blood flow
Rest
Muscle 20%
Maximal intensity Exercise
muscle 84%
vasodilation
vasoconstriction
cardio output (Q)
amount of blood pumped out of heart in 1 min
Litres/minute
Q = SV x HR
stroke volume (SV)
heart rate (HR)
controls where blood goes
A-VO2 difference
difference of Oxygen concentration between arterioles and venules
Blood volume
oxygen consumption
muscular
motor unit trecruitment
motor neuron and the muscle fibres it stimulates
Energy substrate
ATP-PC energy system
Creatine Phosphate
anaerobic glycolysis energy system
CHO- glucose
fats
aerobic energy system
fats
temperature
stimulates sweat glands
heat is by product of ATP resynthesis
lactate, H+
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