The percentage of muscle mass in the human body depends upon gender, age and physical fitness. For men, the average muscle mass is between 38 percent and 54 percent, while for women the range is between 28 percent and 39 percent.Know More
Knowing one's muscle mass percentage is helpful in maintaining a healthy weight. A person who has a higher muscle mass expends more energy in order to perform movements but may have an easier time achieving movement.
Most tests to determine percentages of body weight focus on body mass index, or the total fat percentage. For men, 16 percent body fat is considered to be normal, while 27 percent is considered normal for women.Learn More
The hip adductor muscles allow humans to draw their legs to the mid-line of the body, an action which is aptly named adduction. Other movements the hip adductors enable include transverse adduction, flexion, extension, and external rotation.Full Answer >
An individual muscle fiber may also be called a myofiber or a muscle cell. Each muscle fiber is a single, narrow cell that spans the entire length of a muscle. There are three different kinds of myofibers found in the body: skeletal, cardiac and smooth.Full Answer >
According to Healthline, muscle rigidity is a condition in which the muscles are continually tense or contracted. Muscle rigidity is often a symptom of neurological problems or medicinal side effects.Full Answer >
Muscle spasms are sudden involuntary contractions of one or more muscles and often lead to cramping. Some muscles are more prone to spasms, including the calf muscles and abdominal region. Causes include vitamin deficiency, magnesium or potassium deficiency and fatigue.Full Answer >