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

Biochemistry of Sports
Biochemistry of Muscle and Muscle Contraction

✵ Biochemistry of Muscle tissue and Muscle contraction

✵ Bioenergetics of Muscular Activity

✵ Biochemical changes in the body during exercises of varying intensity and duration

✵ Biochemical Factors of Fatigue

✵ Biochemical characteristics of Recovery Processes during Muscular Activity

✵ Biochemical Factors of Athletic Performance

✵ BIOCHEMICAL FOUNDATIONS OF an athlete's speed-strength qualities and Methods for their development

✵ Biochemical Foundations of Athletes' Endurance

✵ Patterns of biochemical adaptation in The process of athletic training

✵ Biochemical foundations of a rational sports Nutrition

✵ Biochemical monitoring in sports

In the body of an adult male, Muscles account for more than 40% of total body mass, in elderly people — about 30%, and in children — about 25%. In women of the same age, muscle mass is typically lower than in men, which accounts for sex differences in the manifestation of muscular strength and physical performance levels. In strength-sport athletes, muscle mass can reach 50–55%, and in bodybuilders, 60–70% of total body mass.

Through their contractile function, muscles drive movement processes. Muscle contraction continuously consumes the chemical energy of ATP, converting it into kinetic (mechanical) energy. The manifestation of various human motor qualities, particularly strength and speed, depends on the MORPHOLOGICAL Structure OF the muscles, the specific biochemical processes occurring within them, and the regulatory influence of The Nervous system—in other words, on Muscle Function.

To understand the biochemical processes underlying muscle contraction, it is essential to examine the structural Organization and Chemical composition of muscle fibers.



Last update: 06/08/2026

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