PROBLEM TO BE SOLVED: To provide a compact shoulder circumference muscular movement aid.;SOLUTION: A left grip and a right grip to be eccentrically rotated with respect to a left rotational shaft or a right rotational shaft via a left arm and a right arm respectively extending in a radial direction are attached to the left rotational shaft and the right rotational shaft that are protruded in a horizontal direction from a vertically erected support. A user holds a left grip with a left hand and holds a right grip with a right hand. When a start-up button is turned on, the left rotational shaft and the right rotational shaft are rotated by an electric motor. As a result, the left grip and the right grip are eccentrically rotated at eccentric positions with respect to the left rotational shaft or the right rotational shaft. Thus, the left hand and the right hand are vertically moved while approaching or separating from an upper body of a user, and shoulder circumference muscles are moved via front arms and upper limbs so as to be massaged.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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