What is the difference between crunches and sit ups? What parts of the body can be exercised by crun

For crunches, it is mainly to train the abdomen, and for sit-ups, it can slim down the whole body. Crunches can exercise the waist of the body, and there is also the stomach.

Sit-ups can exercise the muscle strength of your waist, abdomen and legs, but the crunch is mainly to exercise your abdomen, and the requirements for abdominal strength are very high, and you can also exercise the external shoe muscles and internal oblique muscles of the abdomen and so on.

Sit-ups not only exercise their waist, in fact, they will still exercise their leg muscles, crunches should be mainly in the abdomen, and the strength requirements for the abdomen are higher.

Different parts of the exercise, different fat loss effects, etc. The biggest difference between crunches and sit-ups is that crunches exercise the abdominal muscles, while sit-ups can exercise the core strength of the entire waist and abdomen, and the purpose of the two exercises is completely different; And if you want to do fat loss exercises, it is recommended to choose crunches, because crunches can be very efficient in burning fat, but sit-ups can't do it.

The effect of sit-ups is not very great, and the crunches are very effective, because sit-ups use the strength of the whole body, and crunches are different, only the abdomen is used.

The former does not need hands and feet to move, but the latter requires every part of the body to move, so the latter can play a good role when exercising.

The difference is the crunch, which is mainly based on the abdomen, while the sit-ups can slim the whole body and burn fat in various parts of the body.

The difference between these two movements is that the abdominal curls will exercise the strength of the abdomen more, which can make the abdominal muscles exercise perfectly, and the sit-ups can exercise the upper body, and the lines of the entire upper body can be exercised, and you can choose the method of exercise according to your own needs.

The effect of fat loss is different, and the parts of the body that need to be moved are different, both of which have different requirements and standards, and the best effects are also very different, and the exercise methods are very different.

The essentials of the action are different:

Crunch is a kind of abdominal exercise, is a relatively simple operation for the waist and abdomen strength is not enough and the usual lack of exercise can be crunched exercise, crunch exercise is also divided into many kinds, simple start with auxiliary crunch, then 90 ° crunch, and then further reverse crunch and Sicilian crunch.

Sit-ups, a way to exercise your body. Lie on your back, put your legs together, raise your hands, use your abdominal muscles to contract, swing your arms forward, quickly become a sitting position, continue to bend your upper body forward, touch the surface of your feet with both hands, and bow your head; Then revert back to a seated position, and so on.

The crunches exercise the human abdominal muscles, while the sit-ups exercise the human hip and lumbar muscles, and the effect of the exercise is not the same.

1. Sit-ups are the action of lying flat and bending the knees to sitting up, which can move the muscles of the neck, chest and late part, hip joint, lower back, calf and abdomen. In the process of doing sit-ups, often due to the wrong posture, force position or speed, it is easy to lead to neck strain, spine or lower back pressure and injury, so many people will use crunches instead of sit-ups when training abdominal muscles.

2. The curl up amplitude is smaller than that of sit-ups, which is regarded as supine semi-sitting, and only the abdominal muscles are exercised.

3. Sit-ups from lying flat to sitting up, the lower back will be completely off the ground.

4. The waiter's abdomen is only slightly rolled up with the upper body, and the lower back is still attached to the ground.

Reading guide]: Curls should be a very familiar action for many people who love fitness, many girls exercise the vest line through curls, what is the correct way to do crunches? What is the difference between crunches and sit-ups? Let's take a look with me.

Many girls hope to practice the vest line through fitness, and the crunch is a very good choice for the brother, but if the fitness method and action are not correct, it is easy to cause damage to the body, so follow me to see the correct way to curl the abdomen.

Action Essentials:1Lie on your back on the mat with your knees flexed at about 90 degrees, relax your back muscles and spine, bring your legs together and straight, and rest your feet flat on the ground.

2.Use the force of the contraction of the rectus abdominis muscle to lift up the upper back and curl the body. The lower back does not leave the ground.

Notes:1Pay attention to the difference between crunches and sit-ups:

When lifting the body, the buttocks of the sit-ups cannot leave the ground, and the crunches require the lower back not to leave the ground, so the crunches should be smaller than the sit-ups, safe and reliable, and the abdomen ** is more sustainable, because the body is lifted more than 30 °, the abdomen is basically not forced.

2.It is best not to hold the head in the abdomen, so as not to cause cervical spine injury.

Sit-ups: Sit-ups are lying flat on the ground, bending the feet, and then the whole upper body sits up from the lying state, the whole process actually pulls the body up and is not the abdominal muscles, but the iliopsoas muscles in the crotch, the role of the abdominal muscles is to maintain the upright state of the upper body, so that the upper body can sit up as a whole under the action of the iliopsoas muscles, although it also uses force, but it is not the most important strength**, so many people do sit-ups and do not feel abdominal muscle acid, but leg crotch muscle soreness. Some people can even make hundreds or thousands in a row.

In fact, it's all about borrowing.

Crunches: The flat lying posture is the same as the sit-ups, the difference is that the supine crunches require the lower back to always be close to the ground during the whole action, not off the ground, the upper part of the upper body is bent upward, only the shoulder blades need to be off the ground, to ensure the contraction of the abdominal muscles, but will not train the iliopsoas muscles, so that you can clearly feel the feeling of the abdominal muscles being squeezed, the upper body is bent to the limit and then pause for a second or two to resume the lying position, and so on repeatedly. The whole movement is completely driven by the contraction and extension of the abdominal muscles, so it really focuses the strength on the abdominal muscles.

It is the real contraction of the muscles, and of course it is more effective.

1) Normal form: Bend your knees and keep your arms close to the ground.

2) Arm curl: Palms crossed in front of the chest.

3) Tentacle crunch: Bend your knees and slide your arms close to your thighs.

4) Parallel palm shuttle: Bend the knees, slightly separate the knees, and slide the palms forward and upward when curling.

5) Vertical leg crunch: Raise the leg crunch.

6) Touching the leg and curling: Junyu often uses the mode, lying flat on the mat, the thighs are perpendicular to the ground, the calves are parallel to the ground, and the hands are close to the calf position when crunching.