Sports Physiotherapy: Load management and injury risk — Training Load and Tissue Capacity
How training load is measured, how tissues adapt to it, and why sudden spikes rather than hard work drive injury.
Try 3 questions
1. In the load-capacity model of sports injury, when is a tissue most likely to be injured?
- When it has not been stretched first
- When it is used on consecutive days
- When the load exceeds its capacity
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Answer: When the load exceeds its capacity
Injury occurs when the demand placed on a tissue outstrips what it can tolerate at that moment; regular use within capacity builds it up.
2. Which of these is a measure of internal training load?
- Kilometers covered in a session
- Heart rate during a session
- Kilograms lifted on the bar
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Answer: Heart rate during a session
Internal load is the body's physiological or perceived response to work, such as heart rate or effort rating; distance and weight lifted are external load.
3. How is session-RPE training load calculated?
- Average heart rate times distance
- Effort rating times session minutes
- Average speed times effort rating
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Answer: Effort rating times session minutes
Foster's session-RPE method multiplies the athlete's rating of perceived exertion for the whole session by its duration in minutes.
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