What does exercise do for muscle performance?


Exercise increases muscle performance. You can train your muscles to be more fatigue resistant, larger, stronger, and more powerful. It all depends on the selection of what are known as acute variables. Acute variables include sets and repetitions performed, tempo, intensity, and rest period given between sets.

There are three major factors in muscle performance: strength, power, and endurance.

The maximum force that a muscle can develop is referred to as muscle strength. Strength is directly related to the cross-sectional area of the muscle, that is, the size of the muscle. Muscle fibers are capable of developing a maximum force of 3 - 4 kg/cm2 of muscle area. So, when you have increased your muscle size by 50 cm2, that is, from 100 to 150 cm2, then the maximum resistance that you could lift would be increased from 350 kg (770 lb) to 525 kg (1,155 lb).

How fast the muscle can develop its maximum strength is the power of muscle contraction. The power of muscle depends on strength and speed; the equation for that is: power = (force x distance)/time. The body can have extreme power from muscles (7,000 kg-m/min) for a short period of about 10 seconds. Then power gradually reduces by 75 percent within 30 minutes.

The capacity to generate or sustain maximum force repeatedly is muscle endurance.

Continue Learning about Types Of Exercise Programs

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.