Motor changes
Motor system produces movement by translating neural signals into contractile force in muscles. reported that neural distinctiveness was reduced in elderly throughout the motor control network. An atrophy of the motor cortical regions and corpus callosum increase with age which may coincide with motor declines such as balance and gait deficits, coordination deficits, and movement slowing. These deficits affect the ability to perform activities of daily living and maintain the independence in elderly. Furthermore, the elderly exhibit involvement of more widespread brain regions for motor control than young adults. Thus the elderly represent more deficits of movement than younger. An increase in movement duration with age is seen on a variety of tasks which the slow movement in elderly appears due to slow information processing and increase in neural noise and other synaptic changes. These affect gait and balance abilities which the impairment of these abilities are of particular interest as falls which are a major health problem that induce injury and morbidity in elderly.