Biochemical Foundations of Human Vital Activity - Volkov, N. I., & Nesen, E. N. 2000

Biochemistry of Sports
Biochemical Characteristics of Recovery Processes During Muscular Activity

Biochemical changes in The Human Body induced by a specific exercise are not limited strictly to the duration of work, but extend over a significant recovery period following its completion. This biochemical aftereffect of exercise is commonly referred to as «recovery». During this period, METABOLISM shifts from the catabolic processes occurring in working Muscles during exercise toward anabolic pathways that facilitate the restoration of cellular structures damaged during exertion, replenish depleted energy reserves, and re-establish the endocrine and Water-electrolyte balance of the body.

Three distinct phases are distinguished during post-exercise recovery: immediate, delayed, and prolonged recovery. The immediate recovery phase spans the first 30 minutes following the cessation of exercise and is associated with the replenishment of intramuscular ATP and creatine phosphate stores, as well as the repayment of the alactacid component of the oxygen debt. The delayed recovery phase, lasting from 0.5 to 6–12 hours post-exercise, involves the restoration of depleted carbohydrate and lipid reserves and the normalization of the body's water-electrolyte balance. During the prolonged recovery phase, which may last up to 2–3 days, Protein Synthesis processes are intensified, and the adaptive shifts induced by the exercise are consolidated and reinforced within the body. Each recovery phase features its own specific dynamics of underlying metabolic processes.



Last update: 06/08/2026

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