| 摘要 |
Training equipment for exercising and strengthening the deep muscles of the spine, the vertebral joints and for posture correction, comprises a support frame 1, 2, 3, hand pedals 8, foot pedals 10, two pairs of cranks 7 rotating about horizontal axes 4, 5 and attached to pairs of connecting rods 9, 11, and a mechanism for adjusting the training load. The pedals are attached to the connecting rods, possibly adjustably, and the distal ends of the connecting rods move along guide members 12 as the cranks rotate around the horizontal axes 4, 5. The angle of the guides 12 relative to the support frame may be adjustable and the direction of rotation may be switched between forward and reverse. The arrangement of a crank and connecting rod between the axis of rotation and the pedal imparts an elliptical motion to the pedals. The hand and foot pedal mechanisms have kinematic connection with a 1:1 gear ratio and the pedal levers 8, 10 may be in phase or 180{ apart. The positions of the pedal mechanisms on the support frame 3 may be adjustable to suit different sized users and the angle of the support frame 3 may also be adjustable.
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