People are old and do drooping
When people are old, there is a degenerative change in the intervertebral disc.
The spine becomes shorter, curved, and the height is lowered.
It is manifested in the form, that is, the height and the finger spacing change (the distance is the maximum distance between the left and right finger tips after the two arm sides are flat).
Aging has little effect on long bones.
Although aging is prone to osteoporosis of the lower extremities.
But the occurrence of bending is rare, and the upper limbs are also the same.
Therefore, from adulthood to old age, the change in the spacing of human fingers is small.
Usually most adults are slightly taller than the finger spacing, or between the two.
Due to the degenerative changes of the intervertebral disc, the height reduction of the elderly is far greater than the change of the finger spacing, and the ratio of height to finger distance changes significantly.
According to the literature, the elderly over the age of 60 means that the distance exceeds the height. The average distance between the elderly over 90 years old can be greater than the average height of 8 cm, and the body shape changes are very obvious.
銆€銆€In order to prevent the aging of the body, holding the bar overhang is two excellent methods, and the sooner you practice, the better.
銆€銆€In sports, the load of the bone has five forms: compressive load, bending load, tensile load, torsional load and shear load.
The ratio of the spine is closely related to the tensile load.
In daily life, people are inevitably lifting, carrying squats and other physical strengths, or carrying weights and squats and other physical exercises.
This is a compression load.
At the time of load, the nucleus pulposus of the intervertebral disc, which is forced by gravity, bulges toward the surrounding area.
The nucleus pulposus is repaired after gravity is removed.
The intervertebral disc acts like a spring pad and acts as a buffer.
The intervertebral disc also allows the spine to perform flexion and extension and lateral flexion.
If the spine bone is under fatigue, especially in the case of high-intensity physical labor or exercise training, it is often subjected to gravity and, for a long time, strain, deformation, and injury.
That is to say, under the action of gravity, the structure of the spine bone changes.
For example, the spine suddenly bends into position during weight bearing, which can damage the annulus of the intervertebral disc and cause the nucleus pulposus to escape to the opposite side, resulting in disc herniation.
Some of these changes will shorten the spine.
銆€銆€The tensile load of the drooping movement, the overlap of the bone is affected by the pulling force in the opposite direction, and the compression load of the spine is relatively resistant, and the spine is restored and stretched, so that the pressed push pad can be restored and the ligament can be stretched.Thereby preventing spine contraction and preventing degenerative changes of the intervertebral disc.
銆€銆€The method of holding the bar hanging is simple, the replacement is easy, no need for special guidance, as long as the bar is held, the foot can be off the ground.
Strong strength can increase point defects, such as swinging motion, to increase the extent of spinal reduction.