RESUMO
Improvement of muscle mass and force which got depleted by inactivity or pathological processes is one of the aims and also a prerequisite of a rehabilitative intervention. Metabolically active larger and stronger muscles diminish the cardiovascular risk, permit the aerobic preventive and rehabilitative activities and enables a higher quality of life. Interval forms of aerobic exercise improves also the muscles. The resistance training plays an important part in rehabilitation. Beside the traditional dynamic strength training with weights, gym machines, body weight etc. the excentric type of muscle activity potentiates higher muscle load with lesser energy consumption, therefore it is suitable in the case of smaller performance ability. Vibration of the whole body or parts of it by machines improves the co-activity of the motor units and results in force development with small metabolic involvement.