The Middle deltoid is part of the muscles that make up the shoulder.
Technical sheet on the Stretching of the Middle Deltoid:
You are standing upright, feet hip width, knees slightly bent. Retrovert your pelvis (simultaneous contraction of the abdominals and buttocks) and maintain the position throughout the exercise.
After fixing your pelvis, with your back straight, do a facial elevation of the arm ( hand in neutral position) to the height of your shoulder. With the arm extended, place the opposite hand on his elbow and pull on it, in order to bring the extended arm closer to your chest.
To do a good stretching you will have to respect these rules:
- Remember to breathe continuously ( Deep breathing cycle of inhalation and exhalation)
- Never block your breathing when stretching.
- Do your stretching for at least 30 seconds
- Stretching will always be done gradually. So that your muscles can get used to this type of work.
Main muscles: Medium deltoid
Secondary muscles :
Role of the average Deltoid:
It is a powerful abductor of the arm (beyond the first 15 degrees initiated by the supraspinatus muscle).
Some shoulder disorders such as rotator cuff tearing or tendonitis can lead to joint instability that will cause amyotrophy of the deltoid muscle. This decrease in muscle volume leads to a decrease in strength and a limitation of joint mobility.
The serous bursa below the deltoid may have bursitis: this is called subdeltoid bursitis.
The axillary nerve can also be damaged. This injury occurs following a trauma that caused a simple dislocation or associated with a fracture of a shoulder bone.
It causes paralysis of the deltoid which will result in a loss of strength during abduction movements (lateral elevation of the arm). Its treatment is essentially surgical.
During the operation, either neurolysis or strike placement will be performed if there is an interruption in the anatomical path of the nerve.