| 摘要 |
PCT No. PCT/CA90/00036 Sec. 371 Date Oct. 3, 1991 Sec. 102(e) Date Oct. 3, 1991 PCT Filed Feb. 2, 1990 PCT Pub. No. WO90/08572 PCT Pub. Date Aug. 9, 1990.An exercise apparatus is used for leg exercises, and particularly for exercising the muscles used in ice skating. The apparatus has a frame with two four bar linkages arranged side by side. Each linkage carries a foot pad. A resistance unit is attached to each linkage to resist movement of the linkage in both directions. The resistance unit is preferably a double acting hydraulic cylinder connected to variable flow control valves to vary the resistance to linkage movement. |
