Exercise 1.
Stand up with your legs at a little distance from one another. Clasp your hands and move your arms forward down till they are straight in the elbows. Stretch the back muscles in the area of your shoulder blades and hold for 10 to 15 seconds. Then shake and relax your hands. Repeat 5 times.

Exercise 2.
The initial position is the same as in the first exercise. Slowly bring your right forearm behind your head bending your arms in the elbows. Slightly press your right arm with you left hand, trying to push it backwards. Strain the muscles of your forearm for 10 to 15 seconds. Then shake and relax your hands. Do the same with the left hand. Repeat each exercise for 2 times.

Exercise 3.
The initial position is the same as in the previous exercises. Bring your right hand behind your back between the shoulder blades. Then slowly bring your right hand to the ear and strain your muscles for 10 seconds. Relax your hands. Do the same with the other hand. Repeat each exercise for 2 times.