| 摘要 |
<p>A physical training apparatus (1) with swivel axes (X, Y, Z) comprises:
- a support base (10),
- a plurality of concentric rings (2, 3, 4) with an inner ring (2) on which a user (100) can be restrained in a position of use and an outer ring (4) supported in a swivellable manner by the support structure (10),
- swivellable restraining means (5a,5b, 6a,6b, 7a,7b) for interconnecting the inner ring (2) and the outer ring (4) by means of an intermediate ring (3), at diametrally opposed points of the rings (2, 3, 4),
- a plurality of masses (8a, 8b, 8c, 8d) movable around at least one of the rings (2, 3, 4),
- moving means (20a, 20b, 21, 22, 23) for moving the masses (8a, 8b, 8c, 8d) between a first position in which they are uniformly distributed around the inner ring (2) so that the centre of gravity (G) and the geometric centre of the inner ring (2) almost coincide and a second position in which the movable masses (8a, 8b, 8c, 8d) are arranged in such a way that the centre of gravity (G) and the geometric centre of the inner ring (2) are spaced apart.</p> |
