Sit-ups, although known to many people, have been used in the wrong posture for a long time, that is, the legs are straight, and then the upper body is vertical to the ground from the state of lying flat. This kind of action is very laborious, and it is easy to hurt the lumbar muscles and lumbar vertebrae. If you do 65,438+00, you will feel that the lumbar muscles can't stand it. If you insist on doing it, even if you want to do sit-ups, you should keep your legs naturally bent, swing your upper body up and down with your back as a fulcrum, and keep your body moving 30 degrees with the ground.

2. Physical requirements are too high, and the exercise effect on abdominal muscles is limited.

Doing sit-ups in the wrong posture requires high physical fitness. Too much will hurt your waist, and too little will have no effect. Moreover, this posture itself is very tired, the number of exercises is not enough, and the exercise effect is very poor. Even correct sit-ups have a limited effect on exercising abdominal muscles, because abdominal muscles only move in a small range, and they are not fully stretched and cannot be fully exercised.

1. It is easy to hurt the lumbar spine and muscles. Although it is a movement that many people know, many people have been using the wrong posture for a long time, that is, straightening their legs, and then changing themselves from a flat state to a state where their upper body is vertical to the ground. This kind of action is very laborious, and it is easy to hurt the lumbar muscles and muscles. 10 has been done. Even if you want to do sit-ups, you should keep your legs naturally bent, swing your upper body up and down with your back as a fulcrum, and keep your body moving 30 degrees with the ground. 2. Physical requirements are too high, and the exercise effect on abdominal muscles is limited. Doing sit-ups in the wrong posture requires a lot of health. Too much will hurt your waist, and too little will have no effect. Moreover, this posture itself is very tired, the number of exercises is not enough, and the exercise effect is very poor. Even correct sit-ups have a limited effect on exercising abdominal muscles, because abdominal muscles only move in a small range, and they are not fully stretched and cannot be fully exercised.

1. It is easy to hurt the lumbar spine and muscles. Although it is a movement that many people know, many people have been using the wrong posture for a long time, that is, straightening their legs, and then changing themselves from a flat state to a state where their upper body is vertical to the ground. This kind of action is very laborious, and it is easy to hurt the lumbar muscles and muscles. 10 has been done. Even if you want to do sit-ups, you should keep your legs naturally bent, swing your upper body up and down with your back as a fulcrum, and keep your body moving 30 degrees with the ground. 2. Physical requirements are too high, and the exercise effect on abdominal muscles is limited. Doing sit-ups in the wrong posture requires a lot of health. Too much will hurt your waist, and too little will have no effect. Moreover, this posture itself is very tired, the number of exercises is not enough, and the exercise effect is very poor. Even correct sit-ups have a limited effect on exercising abdominal muscles, because abdominal muscles only move in a small range, and they are not fully stretched and cannot be fully exercised.

1. It is easy to hurt the lumbar spine and muscles. Although it is a movement that many people know, many people have been using the wrong posture for a long time, that is, straightening their legs, and then changing themselves from a flat state to a state where their upper body is vertical to the ground. This kind of action is very laborious, and it is easy to hurt the lumbar muscles and muscles. 10 has been done. Even if you want to do sit-ups, you should keep your legs naturally bent, swing your upper body up and down with your back as a fulcrum, and keep your body moving 30 degrees with the ground. 2. Physical requirements are too high, and the exercise effect on abdominal muscles is limited. Doing sit-ups in the wrong posture requires a lot of health. Too much will hurt your waist, and too little will have no effect. Moreover, this posture itself is very tired, the number of exercises is not enough, and the exercise effect is very poor. Even correct sit-ups have a limited effect on exercising abdominal muscles, because abdominal muscles only move in a small range, and they are not fully stretched and cannot be fully exercised.

1. It is easy to hurt the lumbar spine and muscles. Although it is a movement that many people know, many people have been using the wrong posture for a long time, that is, straightening their legs, and then changing themselves from a flat state to a state where their upper body is vertical to the ground. This kind of action is very laborious, and it is easy to hurt the lumbar muscles and muscles. 10 has been done. Even if you want to do sit-ups, you should keep your legs naturally bent, swing your upper body up and down with your back as a fulcrum, and keep your body moving 30 degrees with the ground. 2. Physical requirements are too high, and the exercise effect on abdominal muscles is limited. Doing sit-ups in the wrong posture requires a lot of health. Too much will hurt your waist, and too little will have no effect. Moreover, this posture itself is very tired, the number of exercises is not enough, and the exercise effect is very poor. Even correct sit-ups have a limited effect on exercising abdominal muscles, because abdominal muscles only move in a small range, and they are not fully stretched and cannot be fully exercised.