| 摘要 |
<p>The exercise apparatus comprises a one way energy dissipating device (46) which turns a manual energy stroke required to operate the device directly into heat energy, and therefore there is no dangerous, stored potential energy, as exists in multi gym exercisers and exercisers where the manual effort is stored in spring energy. The preferred device is a disc brake (48) which is driven by the manual effort through a ratchet mechanism. An automatic return means such as a light spring or a weight (56) returns the device to an initial position, ready for the next stroke.</p> |
