| 摘要 |
A leg extension device comprises at least two support posts and at least two cross members, pivotally coupled to and constraining the at least two support posts in a substantially parallel relationship. A foot support platform is configured to receive a foot of a wearer to support the wearer on the leg extension device. The foot support platform is slidably coupled aside each of the at least two support posts. An interlock mechanism is operable to engage the foot support platform to selectively restrict movement of the foot support platform relative to the support posts to allow adjustment of a height of the foot support platform.
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