Abdominal musclesThere are many exercises, in addition to sit-ups, abdominal curls, leg lifts on the ground, in the gym There’s also a great abdominal muscle training move: kneeling crunches!
Kneeling and crunching!
Use the kneeling position to perform abdominal crunch training! It’s the same as ordinary supine crunches, but the position is changed, and the principle of action is the same!
Kneeling abdominal crunches are very popular in gyms. The advantage is that you can use roller skating to increase weight and it is safe and convenient! But not many people can do it well!
Most people perform kneeling abdominal crunches as follows:
In fact, this kind of movement uses too much power of the hip joint, resulting in insufficient stimulation of the abdominal muscles!
This action utilizes the function of the rectus abdominis to flex the spine when contracting concentrically. In the demonstration above, the leaning posture becomes a large amount of hip flexion, resulting in hip flexor muscles ( Iliopsoas and rectus femoris) are too involved! And the abdominal muscles have little effect!
The correct demonstration is as follows:
1. The hip is fixed and do not let the hip joint participate in the movement!
2. Contract your abdominal muscles to slowly bend your spine, and imagine your chin touching the lower part of your abdomen. Finally the rectus abdominis is completely tightened!
3. Actions must be carried out in an orderly manner, slow down and up slowly, and do not rely on inertia!