【Upper Arm Exercise】Training area: triceps.
1. Find a chair or stable platform of appropriate height, place your hands behind both sides of your waist, straighten your feet forward, and keep your body balanced.
2. Slowly lower the center of gravity of the body downwards, bend the elbows to about 90 degrees, and then return to the ready position. Do 12 to 15 times and repeat 3 cycles.
