Look up and raise your legs to practice abdominal muscles

Lie on your back on a soft mat, lift your legs, and make your thighs at a 90-degree angle, so that your thighs are as close to your abdomen as possible. Hold for a few seconds, then extend your legs, keeping your thighs and the ground At an angle of 30-45 degrees, repeat.

Each exercise can be done in 2-3 groups of 15-20 times each. It has a good exercise effect on abdominal muscles.