1. Purpose
We seize the degree of tension of a parachutist by measuring the fluctuations of autonomic nerves.
2.
Method We chose seven veteran parachutists and eight beginners from each elementary parachuting members and free parachuting members (thirty persons in total).
We measured representative measuring points before parachuting (bef ore getting on an aircraft) and soon after the parachuting. Then we made a comparison between the results of the two.
3. Results
(1) Comparing with the elementary parachuting, the free parachuting gives more tension to the parachutists, with the result that the free parachuting mem b ers show, in the averaged measure value, 30μA (before the parachuting) and 20μA (after the parachuting) higher than the elementary parachuting members.
(2) Affer the parachuting, the numerical value of H
3 and F
2 is rising in the both of the elementaty and the free parachuting members, which is notable especia l ly among beginners. It is-p o s sible to-surmise that the burden to the function of the heart and the tension in the muscles are heavy. However, it is recognized that the numerica l value of F
3 is falling at the same time. The reasons for this seem to com e from the inhibitory action to the excitement and from the feeling of release and fatigue.
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