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synergy · 1
Shaw 2017 was a crossover trial in just 8 healthy men: 15 g of vitamin C-enriched gelatin 1 hour before rope skipping doubled a blood marker of type I collagen synthesis afterwards. That shows a stronger synthesis signal; whether it helps an injured tendon recover was not tested.
cofactor · 2
Scheduling a deload week every 4–8 weeks is common practice, and it is not slacking. One of its uses is to give slower-adapting tissues time: tendon and bone adapt more slowly than the heart and lungs, and more slowly than muscle, and injuries often happen in that gap.
Strength training through your full range of motion builds strength at the angles you actually use; train only the partial range for a long time and the weakest part of the range stays weak, so the body keeps compensating. That is where the value of mobility lies, not in how far you can stretch.
regulates · 5
Most running injuries are put down to training errors: the heart and lungs improve fast, tendons and bone adapt far more slowly, and ramping up too quickly leaves the slow tissues behind. The most consistent risk factor in studies is an injury in the past year. The popular rule of adding no more than 10% a week is only a reminder; a trial did not find that it prevents injury.
Tendons repair under load: mechanical loading stimulates collagen synthesis and tissue remodeling, while keeping them still works against recovery. That is why advice on soft-tissue injury has moved from RICE, centered on rest and ice, to PEACE & LOVE, which calls for early, gradually increasing load.
Tendons, ligaments and bone adapt more slowly than muscle and nerves. Add load too fast and the muscle copes while the slower tissues fall behind, and overuse injuries often arise in that gap.
Care after a sprain has moved from ice and rest to early, appropriate movement once the injury is protected: long, complete rest works against healing. For ankle sprains specifically, an overview of more than forty systematic reviews found strong evidence for early mobilization, meaning moving the ankle and putting weight on it as soon as you can tolerate it.
The part of a warm-up worth doing is raising body temperature and rehearsing the movements, which makes the session better. What actually prevents injury is something else: in a meta-analysis of randomized trials, strength training cut sports injuries by about two thirds, while stretching showed no effect. You also have to keep the pace of increasing your training in check.