The most type of exercise in bed is to exercise the muscles of legs and abdomen, so it is difficult to do aerobic exercise to lose excess fat.

For example, sit-ups, sit-ups and leg lifts, and air pedaling are all anaerobic exercises, which have a certain effect on exercising legs and abdominal muscles, but have no obvious effect on reducing fat. If you want to thin your legs and abdomen, you can jog for 40 minutes after exercise.