Neuromotor reprogramming of the shoulder: the throwing movement

The purpose of the throwing motion is to create speed and precision in order to throw an object (ball, javelin, etc.) or to make a shot (tennis). To do this, the energy created in the trunk and lower limbs (proximal kinetic chain) must be transferred to the shoulder, elbow and hand (distal kinetic chain).

This gesture can be a source of pathology if a dysfunction occurs during its execution. In fact, the most frequent etiology is overuse of the upper limb in poor biomechanical conditions.

Analysing sports movements

Therefore, the first thing to be analysed is the sporting gestures:

• The arm arm requires maximum external rotation of the shoulder which can be a source of excessive stress (550 to 770 N), the latter being stabilised by the rotator cuff, good neuromotor control of these muscles is therefore required.

When the arm is armed, the anterior structures of the arm are stretched.

Just before external rotation, the subscapularis muscle allows the tensioning of the middle and lower glenohumeral ligaments.

The infraspinatus and the lesser tuberosity decrease the anterior translation of the humeral head.

• During the acceleration phase there is a transition between the maximum ER and the IR, the shoulder is powerfully rotated and abruptly re-centred.

There is a concentric contraction of the pectoralis major, dorsalis major, serratus anterior and triceps.

• During the deceleration phase, there is an eccentric contraction of the muscles.

It is important to have good internal rotation mobility in order to dissipate the forces.

As you can see, in this complex movement there are many constraints on the shoulder:

• The speed of rotation of the shoulder is 7600°/S
• The anterior shear force at the end of the army corresponds to 50% of the body weight
• The distraction force during the deceleration phase is equal to the body weight.

There are stretching stresses in the anterior anatomical structures and compressive stresses at the posterior level with a conflict between the glenoid and the major tubercle.

The difference in forces between the internal and external rotators as well as the extreme amplitudes of the shoulder will progressively disturb the proper balance of the shoulder.

Improving the throwing motion with the Allyane method

This requires good control of the shoulder muscles and the Allyane neuromotor reprogramming method is a solution.

This process is based on the use of proprioceptive sensations,mental imagery and low frequency sounds with the Alphabox.

Low frequency sounds have a dual role: to activate motor areas and to allow the patient to enter alpha mode. Alpha mode is a state of consciousness that promotes integration of motor skills through the emotional pathway.

The patient, after having worked on his proprioceptive sensations of control of the shoulder, is laid down with a headset generating precise and specific low frequency sounds. He will then deprogram the bad gestures by a process of erasure, then integrate the perfect motor function thanks to proprioceptive sensations and mirror therapy.

The result is that the patient will immediately be able to reproduce the correct gesture automatically.

This non-invasive and painless method allows the athlete to improve his or her movement and thus prevent possible pathologies.