Chest enlargement. Palm as a support point, arms open, shoulder width or wider. Your back, waist and buttocks are in a straight line, and you can bend your arm with elbow force. This method mainly exercises chest muscles, upper arm triceps and abdominal muscles.

Insist on doing sit-ups, you can exercise your abdominal muscles. Reduce your stomach at the same time. .

I attended a lecture on purpose today. Simply practicing sit-ups can't reduce your stomach, but it will increase. The reason is that practicing sit-ups will increase abdominal muscles, and adding fat will increase the stomach.

Lose weight: shut up and run errands.

The so-called core training is to exercise the comprehensive function of the trunk. Not to lose weight.