We point out a habit: holding a disc behind the neck with the arms to increase the difficulty of the crunch and / or pushing with the hands behind the neck to help in the concentric part. The hands should not be kept behind the neck as it naturally leads to pushing up. this area to help in the effort as the collapse approaches, touching the sternum with the chin. This in the long run leads to the development of painful cervical pathologies. The hands should be held against the chest. Maybe you can wrap a towel behind the neck, holding it at the ends.To intensify the work it is advisable to extend the arms above the head.
Nothing to report for the Cable / Lat Machine Crunch.
is a compound exercise used in particular for the strength / mass phases and in martial arts. This exercise for the abdomen is a compound exercise used in particular for the phases of strength / mass and in martial arts. The dynamic work of the abdomen is already exhausted in the very first part of the movement, in the part of approaching the sternum to the pubic symphysis, while for the rest of the movement of lifting the torso the abdomen remains contracted to stabilize the trunk, it does not shorten any further. The work of lifting the torso is the responsibility of the iliopsoas and the rectus femoris. The peculiarity of the iliopsoas is that of originating from the last lumbar vertebrae, and therefore of carrying out a lordotizing traction every time it contracts. A hypertonic iliopsoas leads to hyperlordosis and to the pathologies of the spine already mentioned. It is therefore an exercise to be carried out with caution, without to exceed, contraindicated to hyperlordotics and in any case to those with pathologies affecting the lumbar spine. Painful inflammations in the lower back are common in those who frequently perform these exercises, especially if with sudden and accelerated changes of speed (as in martial arts) .stabilizer.
of the vertebro-ligamentous system. This is even more true if you perform the standing exercise, since in addition to the stress on the spine, the same torsional stress is added to the knees. In summary, the risks associated with the twist are due to an excess load. abdomen are easily hypertrophied and their hypertrophy widens the waist instead of thinning it with a consequent unsightly effect, so they do not always need to be stimulated with intensity.
