Originally Posted by
wens
Hmm, some kind of fluid brake with a clutch mechanism... Seems like a pretty cool design problem, but I don't think it's worth the risk on the typical sled configuration.
It is an interesting design problem!
Here's a thought. What about some fluid type system where your legs force some blades through water. You increase the resistance by tilting the blades. The sled would simply float down even if you removed your feet.
WaterRower uses water in a loosely similar way:
Hooking up a "Power Leg Press" sled with water/oil resistance would probably be a nightmare for a commercial gym to maintain, though
