Week 11 - Cardiovascular Adaptations to training and VO2 max Flashcards
O2 transport system
Does O2 requirement change?
Endurance training effect?
- o2 requirement doesn’t change
- o2 Transport can become more efficient with endurance training
Causes of increased LVED volume
What does Increased blood volume assist?
- assists venous return
- changes faster than cardiac mass (within a week)
Causes of increased LVED volume:
Lower heart rate/ Rapid ventricular relaxation
-increases filling time (diastole)
Causes of increased LVED volume:
Volume adaptations are_____compared to changes in cardiac mass
-rapid
Decreases in RHR with endurance training are due to: (3)
- increased sv
- decreased sympathetic stimulation
- increased vagal tone
Submaximal HR during exercise_______
How many bpm after 6 months of training?
- Decreases.
- May decrease by 10-30 bpm after 6 months of training
Maximal HR during exercise
-remains unchanged or decreases slightly with training
Endurance training_______HR and SBP for same absolute exercise intensity
reduces
Exercise_______recovery rate period
increases
HR recovery period is affected by
Altitude, heat
HR recovery period____ ___individuals
cannot compare
Blood flow____with training
increases
Trained muscles have_________capillarisation
increased
Training_____bp
reduces
Training_____blood volume
increases
________training may decrease capillary density from an increase in muscle fibre area
strength
a-vO2 diff improved O2 extraction due to increased…(3)
- capillary density
- increased myoglobin content
- increased mitochondrial volume density
Maximal work rates systolic pressure______ and diastolic pressure_________
increases
decreases
Blood volume from training increases primarily to an increase in
plasma volume (ADH, aldosterone, plasma proteins cause fluid to be retained in the blood)
Blood viscosity______with training_____circulating and____oxygen delivery
decreases
improving
enhancing
VO2 max definition
The maximum rate at which a person can utilize O2
relative to your body weight per min (ml.kg.min)
Improvements in VO2max due to: (2)
increase in SV
increase in a-vO2
VO2max can be limited by: (5)
Anaemia Detraining Blood loss Dehydration Beta blockers
Factors affecting VO2max (5)
Lvl of conditioning Heredity Age Sex Specificity of training
