To improve the effects for the softening and protection of lumbago by a method wherein a driving means is feed-back-controlled in such a manner that a waist part moving amount of a trainee may roughly meet a target value.
An acceleration sensor 4 which detects a moving amount of the waist part of a trainee three-dimensionally, is provided. In the meantime, in a data storage part 31, control information wherein the locations of a seat 1 in the axial directions of respective X, Y and Z axes, and respective gradients around respective axes as a set are set by an interval of a specified period of time, is stored by one cycle portion as a series of vibration patterns having a periodicity. Also, a target value for the moving amount of the waist part corresponding with a unit pattern is set in advance, and is stored in the data storage part 31. An operation part 30 obtains a waist part moving amount based on an output value of the acceleration sensor 4, which is input, and obtains an error with the target value which is input at the same time. The unit pattern is corrected in a manner to reduce the error, and a parallel mechanism 2 is controlled by an actuator control part 32 and a driving part 33. Thus, the effects for the softening and protection of lumbago can be improved.
MURAKAMI SOJI
SHINOMIYA YOUICHI
YOSHIDA YUKIO
| JPH1039743A | 1998-02-13 | |||
| JPH0614967A | 1994-01-25 | |||
| JPS60220063A | 1985-11-02 | |||
| JPH0767924A | 1995-03-14 | |||
| JPH10127713A | 1998-05-19 | |||
| JPH114910A | 1999-01-12 | |||
| JPH114911A | 1999-01-12 |
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