Technical features:
The study of joint physiology allows us to study human biomechanics with reference to the functional anatomy of joints throughout the body.
The spine by definition is the set of vertebrae that make up the support structure to which sheaths, fascia, organs, small muscles and large muscles that support, protect and operate the column itself are anchored.
The spine presents several curves in its load-bearing axis structure; on the sagittal plane (from the side) kyphotic curves and lordotic curves are observed, the former with posterior convexity and the latter with anterior convexity.
Kyphoses serve a static function, of support and protection, therefore of containment of structures of considerable importance; it is enough to observe cranial kyphosis, for the encephalon and cerebellum, dorsal kyphosis, for the thoracic organs such as the heart and lungs, sacral kyphosis for the pelvic genital organs; to be more precise, a calcaneal kyphosis for the podalic pump. Kyphoses, therefore, do not enjoy good mobility for the function they perform.
The lordoses, on the other hand, have a characteristic of mobility and arise in chronological order, first the popliteal one, then the cervical one, then the lumbar one and finally the podalic one of the plantar arch. Obviously the curves that are worthy of greater attention are the dorsal and sacral kyphosis and the cervical and lumbar lordosis.
Mother nature created this alternation of curves to support the load of the entire body, during walking and standing. A structure, mainly vertical, is as resistant as it contains more curves. In the case of the spine, the number of main curves is three, namely cervical lordosis, dorsal kyphosis and lumbar lordosis.
According to engineering studies, the resistance of a structure is given by the number of curves squared plus one, or R= (NxN) +1, therefore considering the three vertebral curves in the case of the human being the resistance will be given by 3×3 +1, or 9+1 therefore 10.
If a curve is missing, whether intentionally or not, the spine loses some of its resistance. For example, if the lumbar curve is missing, as when you sit down, flexing your hip, the resistance will be 2 × 2 +1, or 5!
Practically half the resistance you have in a physiological triple curve position.
Therefore, in order for the spine not to be excessively loaded on its load-bearing structures, it is essential that there are three vertebral curves that absorb and distribute the load equally on all the spinal structures.
Unfortunately this doesn't always happen!
Incorrect postural attitudes, functional problems, or structural problems of the spine, can lead to the cancellation of a curve or the exaggeration of another, or both.
This will lead to alterations in the uniformity of stress along the spine which can lead to significant suffering, even of pathological nature.
Maintaining the physiological alternation of spinal curves is one of the basic requirements in gymnastics dedicated to postural rebalancing.
In Postural Fitness, a whole series of strategies are implemented that are appropriate for each individual case, to allow the subject to regain full functionality while fully respecting the vertebral mechanics.
Here, after a careful postural observation and an evaluation of the vertebral functionality, with reference to the movement tests (flexion, extension, rotation and lateral flexion), it will be possible to organize a whole series of mobilization or positioning exercises with the Posturalcare support® that assist the subject in the recovery of his physiological curves. The alterations of the physiological vertebral curves can create significant stresses, if in flexion, on the anterior structures of the vertebrae or vice versa, in the case of a cervical tract in extension, a stress on the posterior part of the vertebrae can be observed.
Cervical cushions have the function of recreating the curve of the cervical spine in all those subjects who have a functional limitation in extension, therefore who live in flexion. Currently this phenomenon is becoming increasingly widespread due to the professional postures that people assume, such as working on the computer keeping the chin almost in the throat for most of the day.
Obviously the alteration can also depend on remote traumas such as a more or less serious whiplash that have straightened the cervical spine or even inverted it.
