Exercise is a catabolic stimulus. It breaks tissue down. The process of growing stronger, building muscle, and improving fitness occurs during the recovery period between sessions, when the body repairs the damage and adapts to a higher baseline capacity. A programme that maximises training stimulus without optimising the recovery environment is maximising the catabolic phase without enabling the anabolic response. The results will reflect that.
The Adaptations That Occur During Recovery
- Muscle protein synthesis: the repair and construction of contractile proteins, occurring over 24 to 72 hours post-training
- Glycogen resynthesis: replenishment of muscular energy stores, largely complete within 24 hours with adequate carbohydrate intake
- Connective tissue remodelling: collagen synthesis in tendons and ligaments, occurring over a longer timeframe than muscle repair and more vulnerable to recovery inadequacy
- Neural adaptation: improvements in motor unit recruitment, firing rate, and intermuscular coordination, occurring progressively over weeks of consistent training
The Recovery Variables You Control
Recovery quality is determined by sleep duration and quality, protein intake within the recovery window, carbohydrate adequacy for glycogen replenishment, psychological stress load, hydration, and the interval between training sessions. Of these, sleep is the most powerful and the most commonly inadequate. Optimising recovery does not require expensive interventions. It requires prioritising these foundational variables consistently.
The Minimum Recovery Requirements for Adults Over 50
- Minimum 48 hours between resistance training sessions targeting the same muscle groups
- Seven to nine hours of sleep per night
- 40 grams of protein in the meal consumed within two hours of training
- Adequate hydration: minimum 35ml per kilogram of body weight daily, increased for training days