A Level PE - Fatigue and the Recovery Process:
- Created by: hotzmc
- Created on: 21-12-17 00:20
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A Level PE - Fatigue and the Recovery Process:
Fatigue: A feeling of extreme physical or mental tiredness and it can result in temporary loss of strength and energy
Causes of Fatigue:
- Glycogen Depletion: When the body runs out of glycogen stores, therefore lacks energy
- Lactic Acid Build Up: When there is not enough oxygen in the body, so lactase is made so that the muscles can continue to work
- Reduced Rate of ATP Synthesis: When ATP and PC are depleted, it’s difficult to sustain muscular contractions due to lack of energy being made
- Dehydration: Causes blood viscosity to increase, causes blood pressure to reduce, we sweat less to prevent water loss, core body temperature increases
- Lack of Rest Between Sessions: The body hasn’t had time to recover and replenishes oxygen and ATP stores
How Does Fatigue Affect Sporting Performance:
- Contraction levels will decrease
- Likely to make more mistakes due to worse judgement
- Local muscle fatigue will mean specific muscles won’t be able to carry on what they’re doing
- Temporary loss of strength and energy
- Skill levels will decrease alongside the decline in speed and strength
Onset Blood Lactate Accumulation (OBLA):
- The point during exercise at which lactic acid builds up in your blood and fatigue sets in
- When you ‘hit a wall’
- Also known as the Lactate Threshold
- Reached when 85% of MHR
- Is expressed as a % of VO2max (VO2max…
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