| 摘要 |
PROBLEM TO BE SOLVED: To make it easy for a person who cannot exercise to strengthen the abdominal muscles by oneself to perform the exercise of the femoral muscles or abdominal muscle lower part with the waist as the axis in the state where the lower half body is horizontally extended by connecting a driving device for automatically repeatedly erecting and prostrating a derricking base within an optional angle range to the derricking base. SOLUTION: In use, a preferable angle range is set by an angle regulating mechanism 6, and the driving mode of a driving device is also properly selected and set. A person lies on its back with the upper half body being put on the upper surface of a contact member 3, and the lower half body being put on the upper surface of a base 1, and a receiving plate 4 is regulated to make contact with the head top. When the starting button of a display means 7 is pressed to start the driving device, a derricking base 2 starts rotation. At this time, when the pointer of a lower-limit limit switch 18 is set to 0 deg., and the point of an upper-limit limit switch 19 is set to 45 deg., the derricking base 2 is automatically repeatedly erecting and prostrating at a set speed within the angle range of about 45 deg.. When the time set by a timer passed, the rotation is automatically stopped.
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