Muscle fatigue at the end of the day is quite a natural process, especially if the day was associated with heavy physical labor. Most often fatigue hurts the lower back, the muscles of the arms and legs. But there comes such a time when a person starts to notice that the loin hurts and is at rest, while walking the pain intensifies and gives it in the hand, then in the leg. It is becoming more difficult to bend, it is almost impossible to relax the back muscles, even when lying down.
