Mechanism for a wheelchair exercise machine

AI Thread Summary
The discussion focuses on designing an exercise machine for wheelchair users that resembles a standard wheelchair but with elevated wheels. The goal is to incorporate a resistance mechanism to enhance the workout experience when users push the hand rims. The idea of using a pulley system for resistance is proposed, but there is a lack of information on resistance pulleys. Participants are encouraged to explore similarities between bicycle rollers and wheelchair rollers to inform the design. The conversation aims to gather insights and advice for developing this innovative exercise machine.
johnobell89
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I'm looking for some advice for my final year project at university. My project is a design of an exercise machine for wheel chair users . The machine will look like a standard wheel chair but the wheels are a couple of centre meters off the floor. I want to add a mechanism to the wheels which would add resistance for when the user is pushing the hand rim . I was thinking about having a pulley but I can't find anything about resistance pulleys. Any advice?
 
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johnobell89 said:
I'm looking for some advice for my final year project at university. My project is a design of an exercise machine for wheel chair users . The machine will look like a standard wheel chair but the wheels are a couple of centre meters off the floor. I want to add a mechanism to the wheels which would add resistance for when the user is pushing the hand rim . I was thinking about having a pulley but I can't find anything about resistance pulleys. Any advice?

Welcome to the PF.

Sounds very similar to bicycle rollers. What can you say about the similarities and differences between rollers for bicycles and rollers for a wheelchair?
 

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