Discuss how protein intake affects muscle function and movement efficiency. Include reference to timing of intake in your response. (5 marks)
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Sample Answer
Protein intake significantly affects muscle function and movement efficiency through several mechanisms.
The digestive system
- breaks down proteins into amino acids, which are essential for muscle repair and growth.
- Timing of intake is crucial – consuming protein within 30 minutes post-exercise optimises muscle recovery and adaptation.
- Pre-exercise protein consumption helps maintain positive nitrogen balance during activity.
The endocrine system
- responds to protein intake by releasing hormones like insulin and growth hormone that regulate protein synthesis.
- This hormonal response enhances muscle repair and strengthening, leading to improved movement efficiency over time.
- Inadequate protein intake can result in reduced muscle mass and compromised movement patterns due to insufficient resources for repair and maintenance.
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Sample Answer
Protein intake significantly affects muscle function and movement efficiency through several mechanisms.
The digestive system
- breaks down proteins into amino acids, which are essential for muscle repair and growth.
- Timing of intake is crucial – consuming protein within 30 minutes post-exercise optimises muscle recovery and adaptation.
- Pre-exercise protein consumption helps maintain positive nitrogen balance during activity.
The endocrine system
- responds to protein intake by releasing hormones like insulin and growth hormone that regulate protein synthesis.
- This hormonal response enhances muscle repair and strengthening, leading to improved movement efficiency over time.
- Inadequate protein intake can result in reduced muscle mass and compromised movement patterns due to insufficient resources for repair and maintenance.