[See if your abdominal muscles are aging] - Lie on your back, bend your knees 90 degrees, and place your feet flat on the ground.

Place your arms straight at your sides, palms down. Keep your arms parallel to the ground and keep your feet on the ground.

Take 5 seconds to push your body upward in slow movements until you reach a sitting position, pause for 1 second, and then use 5 seconds to return.

If you can complete more than 10 times without stopping, you will be considered qualified. If you cannot complete 10 times, it means that the abdominal muscles are seriously aging.