Do sit-ups still work? I recently said that sit-ups are unscientific. Is it really unhealthy?

Sit-ups and reclining postures. Under normal circumstances, they are harmful to the body, especially the spine. High-intensity exercise hurts your spine, not your waist and abdomen strength.

It is unscientific for the traditional presser foot to move quickly. It's very harmful to the spine.

If you really want to exercise your waist and abdomen strength, it is recommended to support the flat plate and push-ups.

Because the waist and abdomen muscles are the core muscles, this exercise is the most effective.

Traditional sit-ups should be avoided. It's really bad for your health, which is a misunderstanding of China's fitness.