Regulated by thyroid. Physical Activity B. Energy for Physical Activity 1. Depends on type, time spent, intensity, and size of person. Lack of physical activity is major reason people gain. C. Energy for Other Needs 1.
Muscle weighs more than fat.
Large amounts of fat are stored in muscle, the abdominal region, and the buttocks, thighs, hips and breast of women. Cells increase in size and weight as they store fat. C. Determining Percentages of Body Fat 1. Bioelectrical Impedance - Measures electrical resistance as small electric currents directed through human tissue 2. Hydrostatic Weighing - Determines relative amounts of fat and lean body weight and compares underwater body weight with body weight out of water.