To maintain and replenish its capital calcium, bone must be stimulated by a dynamic load and cyclic. Researchers believe that the mechanical stress to cells send signals that tell them to absorb or build bone matrix. These signals must be repeated because only put up at a fast frequency (every two seconds) are effective. It was observed that the most effective exercises are fairly intense but not necessarily long term. Sports activities increase bone density by both an effect of compression associated with weight support and a traction effect generated by the contractions of the muscles that pull on their bony insertions. But we must understand that only the bones are stimulated directly affected by the load or stress muscles. The best exercises for strengthening bones indicated must therefore involve a burden, the impacts of frequent and traction on parts of the skeleton threatened. Running is more effective than walking because, when short, the impact on the lower limbs and the spine is 2 times more powerful than walking. Gymnastics, more complete, is even more beneficial. The weightlifters, the volleyball and basketball players have higher bone density than other athletes. Jumping rope, stair climbing, step aerobics and weight training are preferred. However, because in the water as if weightless, muscle strength is not sufficient, swimming would be ineffective to combat brittle bones. This is not to give up the sport, which offers additional benefits to the cardiovascular system and joints, but to supplement it with exercises in office with short efforts, repeated at a rapid pace, including strength training with weights and machines. 1) Against the broken wrist. Sit at a table. Place your forearms on the table in each hand grasping the neck of a bottle full of water. By rotating the wrist, flip the bottles outwards to almost touch the surface of the table, then bring them back to vertical. 50 times per day. 2) Against the fracture of the thoracic vertebrae. Idly, kneel before an ottoman and bend forward at the bust up, your back flat, but without asking. Raise the chest slightly from the hips, hold 2-3 seconds, release a bit and so forth, 30 times. 3) Against the fracture of lumbar vertebrae. Hang weight of 1.5 kilograms each flexible around your ankles. Sit on a chair, back straight. Lift one knee, then another. 50 times on each side. 4) Against the femoral neck fracture. The weights still attached to the ankles, lie on the ground, on the right side, legs straight, his head resting on folded arms. Lift the left leg on the side lower it, but without the rest. 30 times. Switch sides and repeat 30 times.

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