Swimming is a kind of whole body muscle coordinated exercise, and it is also an aerobic exercise that consumes a lot of physical strength. When swimming, you need to exert force on the muscles of your arms, chest, waist, abdomen, buttocks and legs at the same time. Only when the strength of these parts keeps up can you swim more easily.

Breaststroke-leg strength. The thigh style of freestyle and backstroke is whipping up and down, and only breaststroke is pedaling. The former can make legs longer, while the latter uses quadriceps more, so it is very effective for strengthening leg strength.

Butterfly chest muscle strength. In butterfly stroke, the arm strokes inward, which is similar to chest expansion. Exert more force on pectoralis major, extensor dorsi and rectus abdominis, and the exercise effect is also the best.

Freestyle-arm strength. In freestyle, the biceps brachii and triceps brachii of the upper arm exert more force, which can effectively exercise the arm muscles and improve the shoulder muscle strength.

Backstroke-back strength. When backstroke, the extensor dorsi will exert more force and stretch the back muscles. In addition, when backstroke, you need to lift your hips and slide, which is also an exercise for your hips.