The correct curling movement is to lie flat on the mat, knees bent at about 90 degrees, relax the back muscles and spine, legs apart and shoulder-width, feet on the solid. Hold your hands by your ears and use the power of your abs to roll your shoulders and upper back off the ground, and slowly return to the starting position after a brief pause at the highest point. Keep your lower back close to the ground and keep your elbows open. The main point of the curls is to breathe steadily when exercising, exhale when getting up, inhale when lying down, don't hold your breath. Rolling belly when the upper abdomen can have obvious contraction compression feeling.
Rolling exercise is mainly exercise the strength of the waist and back and abdominal muscles, exercise properly will make the abdominal muscles become more firm, so that the abdominal muscles of the fat cells can be slowly reduced, thus increasing the strength of the core muscle group muscles, but also to achieve the effect of bodybuilding.
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