1. Shoulder: The swing of the kettle bell needs the strength of the shoulder to drive the swing of the arm, thus exercising the muscles of the shoulder.
2. Upper back: In the process of swinging the kettle bell, the back muscles also need to exert strength to maintain the stability of the body, so you can also exercise the muscles of the upper back.
3. Hips: The swinging of the kettle bell needs the muscles on the hips and the back of thighs to control the balance and stability of the body, so you can also exercise the muscles in these parts.
4. Core muscle groups: Maintaining the stability and balance of the body requires core muscle groups, including the muscles of the abdomen, waist and back.
5. Arm: Although the swing of the kettle bell is mainly used to exercise the muscles of the shoulders and back, the arm also participates in this movement, and the stimulation to the arm can be increased by adjusting the posture of the arm.