Do not forget about exercises on stretching.

Breath deeply,smooth,feeling that muscle stretching, but not hurting.
1.Hands behind breast, palms together, shoulder blades are together, raise up hands,fixing pose for 3 sec, low hands,relax,repeat exercise.
2.Stand up in a door s way, reduce out half bended hands to sides,taking for cants, transfer a body heavy to front, till muscles breast stretching.