B21 ストレスマネイジメントを目指したフローティング・シミュレータ・システムの開発(生体2)

概要

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In modem society, people are frequently subjected to various forms of stress. Such stress leads to a decline in people's working efficiency and often triggers illness. Thus, stress is a very big problem, which should be solved through medicine and ergonomics. The purpose of this study was to make use of floating, the technology of "Clothed Swimming". Furthermore, we devised a system which detects the status of floating using a force gauge and an acceleration sensor. We attempted to reduce various forms of stress by this prototype system. As a stress index, we focused attention on the autonomic nerve activity. We confirmed the possibility of the stress reduction by floating. We performed a bicycle ergometer test to simulate typical exercise stress; in order to simulate mental stress, subjects caught a small ball (6mm in diameter) and moved it with chopsticks. Recovery by floating was performed after there tasks. Additionally, for the sake of comparison, recovery on land was performed. As a result, when floating was performed after exercise, the value of HF an index of a parasympathetic nerve activity, increased. This result held for mental stress recovery, as well. The trend was remarkable even if compared with recovery on land. These results strongly suggest the possibility of relaxation and stress reduction by floating.
2007-11-13