[Pull-ups] Training area: back muscles.
1. Hold both hands on both sides of the horizontal bar, the distance is about 1.5 times wider than the shoulders, let the body hang naturally and breathe naturally.
2. Slowly pull your body upward until the position between your nose and eyes is parallel to the horizontal bar, and then return to the ready position. Do 8 to 10 times and repeat 3 cycles.
