The amount of actin and myosin in the fibers reduce, and the fibers themselves grow smaller. Even if there is no damage to the nerve fibers, the muscle can atrophy from disuse. By and large, the greatest cause of atrophy in muscle is aging. Muscular strength will peak at the age of thirty. As you get older, the myofibrils degenerate and the number and size of muscle fibers dwindle.
Connective tissue replaces the lost fibers, making the muscle more rigid and slow to respond.
Steady exercise is a valuable measure of preventive medicine that helps delay fiber loss and maintains strength. To improve the quality of your results the BioFitness Health Club creates your workout plan presciptively for you.