According to MedicineNet, many experts consider aerobic exercise to be the best way to maintain a consistent weight. The key is the length and intensity of the activity that elevates the heart rate, causing the body to burn more calories and fat than it does while at rest.
According to Science Daily, an exercise is aerobic when performed with such intensity that the heart rate increases and is maintained for an extended period of time. If an aerobic exercise is performed long enough, the body switches from using glucose as its fuel source to burning fat.
The Centers for Disease Control recommends that an individual perform 150 minutes of moderate or 75 minutes of vigorous aerobic exercise per week for weight maintenance. However, losing weight requires additional exercise time, exercise intensity or a lowered calorie intake.
Before beginning any diet or exercise program, the CDC advises seeking the advice of a physician and slowly working up to its recommended levels. If performed long enough to become aerobic, some popular physical activities include brisk walking, dancing, jogging, cross country skiing, swimming, bicycling and stair climbing. Using an elliptical machine, treadmill or rowing machine is an effective way to participate in aerobic activities while indoors.