2. The four strokes of swimming have certain exercise effects on abdominal muscles, among which the butterfly stroke and freestyle are the most obvious.

Butterfly stroke relies on the waist and abdomen to drive the whole lower limb of the leg to make dolphin legs, so it requires very high strength and coordination of the waist and abdomen. Butterfly is an immediate exercise for rectus abdominis, so butterfly swimmers often have strong and beautiful abdominal muscles. Freestyle is also a good exercise to exercise the muscles of waist and abdomen. Freestyle kicking starts with the waist and abdomen.

Swimming can reshape people's figure, make people's figure more symmetrical, and achieve a certain fat burning effect. However, if you want to develop abdominal muscles, you still need to add some abdominal exercises, such as starting from both ends and abdomen. Stimulate the abdominal muscles to a certain extent, thus exposing the abdominal muscles.