It isn’t exactly a rare scenario. A man, typically middle-aged, is seen busily working on something inside the house on a Saturday morning.  The suddenly, he bends to pick up a tool from the floor. Earlier, he broke into a sweat while carrying sacks of cement and bricks that he’ll use to re-do the driveway. As he rises, he immediately senses the sharp pain on his waist and lower back. Not as young as he used to be, he ends up almost immobile from the waist down after hurting his back while doing something as ordinary as picking up an object from the floor.  This scene is so common that it is even used as a common device in t.v. situation comedies and cartoons.  But in real life, over stretching and lifting of heavy objects have been the reason for the need to buy all sorts of pain medications.

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