Locomotory System

The human skeleton consists of bones, connected by joints.While the skeleton forms the mechanical framework and support for the body, motion is enabled by the contraction and relaxation of muscle tissue. The skeletal muscles are connected to bones by tendons. Each movement is making with the coordination of several different muscle groups. The twists, the elongations, the pressures effectuated during jumping, increase the mechanical endurance of the osseous system, in different condition than those of the daily routine. During a so-called stimulation of an articulation, is prevented a pathological condition, like the ankylosis or the artrosis due to the absence of movement.

The spinal cord is the part of the skeleton mostly exposed to deformation. The causes of these deformation are:

1. the wrong body position while working or resting
2. the position of the muscles ( scoliosis, cifosis, lordosis )
3. the prolonged static posture (the vertebrae compression)

Because of these reasons, we must be very careful in aerobics, so that each movement corresponds to the needs of each participant.

When you practice through exercise for yourself, it can provoke you pain, because too much strain may increase deformation. If that thing happens, you should call a kinotherapeut or a sport teacher who can help you, indicating some useful movements and warn you about the things you should stay away with.

A good aerobics class realises the lengthening of the muscles and joints, develops the amplitude of movement, strengthen the muscular system for keeping the body shape and the reduceing, as much as possible, of the deformation. Thus, each aerobics classes where people practice exercises of strengthen the abdominal and dorsal muscles, provides a normal curve of the spinal cord .