Abstract
In the recent years, it is necessary to increase in fine elderly people for rapid aging of the population resulting from the decline in the birthrate in Japan. For elderly individuals, who tend to be less physically active, improving both motor and cognitive functions is necessary to live daily life. Previous study, aerobic exercise training had an effect on inhibiting decreasing cognitive function by aging. Recently, there were discussed brain activation and improvement of cognitive performance during passive sway exercise like horse-back riding simulator. We prepared new original passive sway exercise machine and examined the changing of hemodynamic during exercise and with changing exercise speed by using f-NIRS. NIRS probes were placed to focus measurements on the activation in the frontal association area and motor area located in the frontal lobe. Measurement of ten healthy subjects, in the frontal association area, a decrease in oxy-Hb density is likely related to increase in the stress of the exercise since oxy-Hb density decreased immediately after the start of exercise and was decreased throughout decreasing speed. In the motor area, changing oxy-Hb density was related sway speed. We can control activation in motor area by changing sway speed.
