MonkeyFeet by Animal House Fitness
The foot attachment. It works like a hard boot, so the ankle is not doing the work and the cable can attach underneath the foot for the longer lever.
Almost every leg extension machine loads a lever that is only as long as the distance from the knee to the bottom of the shin. With MonkeyFeet, the cable attaches under the foot, so the lever runs from the knee all the way to the bottom of the foot.
A longer lever arm means the quad has to produce more torque to move the same resistance. That gives me a bigger stimulus without having to load the cable as heavy as I otherwise would, and the eccentric overload lets me push the lowering phase further.
The foot attachment. It works like a hard boot, so the ankle is not doing the work and the cable can attach underneath the foot for the longer lever.
The connection between the cable and MonkeyFeet. It rotates in every direction, so the whole range of motion feels smooth and the handle doesn't add any resistance of its own.
The cable system. Eccentric overload gives me a heavier lowering phase than the lifting phase.
Supports the thigh so the hip stays flexed, closer to a traditional leg extension.
I attach the Voltra I cable to a TrakHandle Sport, clip that under the MonkeyFeet, and set the Voltra to eccentric overload. Then I extend the knee while pushing my heel into the bottom platform. I run it two ways: standing with the hip extended to bias the rectus femoris, or with my leg on a roller and the hip flexed for a more traditional leg extension.
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