| 摘要 |
A rotary torso exercise machine that isolates and targets the internal and external oblique muscles on both sides of the torso as well as providing conditioning to the rectus abdominis muscle. The machine supports a user's body in a generally supine position and includes five essential features, a frame, fixed feet stabilizing rollers, a fixed lower torso support or seat, a rotatable upper torso support, and a peg for holding free weights that impart resistance against the rotation of the upper torso support. The user may selectively vary the mount and direction of resistance as well as the degree of rotation. The machine may be easily converted for use as either a back or abdominal exercise. |
