Motorized pedal and movement devices which might be of benefit for MS patients with limited mobility.
Here are some examples.
Ex N’ Flex: http://exnflex.com/
Exerpeutic (a less expensive option): https://www.amazon.com/Exerpeutic-Motor ... 001IV6MV6/
Here's another example available on Amazon that works both the upper and lower body.
HCI Fitness E-Trainer: https://www.amazon.com/HCI-Fitness-eTra ... 00GY07KTO/