If you exercise core muscles such as abdominal muscles and back for a while, and then you relax and leave him alone, he will easily become less clear.

So when you train your abdominal muscles, you must do some exercise to keep them, otherwise they will easily disappear.

If you don't want to use the device, you can download some apps. For example, keep and abdominal muscle tear can be followed. If you don't want to be too tired, you can choose HIT's relatively easy exercise.

You can lie flat on the yoga mat, with your legs bent and your feet shoulder-width apart, and then use the strength of your abdomen to pull your body up. Or lying on the yoga mat, knees bent, hands clenched, thighs hooked back, feeling abdominal force, a bit like doing sit-ups, but more difficult than sit-ups.

Or you can do some flat support, Spanish belly roll, or pull-ups. These can also be used to train core muscles. Only when your core muscles are stronger, your body will be more coordinated and stable, your figure will be more coordinated and your lines will be more beautiful.

However, if you want the abdominal muscles to be clear and beautiful, it is not enough to exercise alone. You must also keep a healthy diet and get enough sleep. All fitness exercises are like this. You must match a reasonable diet to make your fitness effect get twice the result with half the effort.

And if you want to do belly roll, you'd better do it separately, such as 10~ 15 or 15~20. This can stimulate the strength of muscle groups more than doing 100 at a time.