What exercise to do at night to lose weight can be a lot of walking backwards, because it can enhance the strength of the muscles behind the thighs and back, so it can also prevent low back pain. It is reported that walking backwards can also protect the cerebellum, and losing weight through exercise is conducive to improving the flexibility and coordination of the body, which is a very effective and beneficial method for the elderly to keep fit. When walking backwards, you should choose an open and flat place. The pace should be controlled at 45-60 steps per minute, and the distance to lose weight by exercise is generally 600- 1000 meters.