[Therapeutic exercise].

Physical disability in older people is characterized by declines in multiple domains including strength, balance, flexibility, reaction time, coordination, and muscular endurance. Evidence that therapeutic exercises can reduce physical disability is accumulating. Muscle strength can be improved in older people, particularly if their muscles are significantly overloaded by training exercises. Progressive resistance strength training (PRT) improves muscle strength and aerobic capacity in older people. However, the effect of PRT on their overall physical disability is still unclear. In Japan, power rehabilitation program is believed to be effective in improving their physical activities.