Student Work

Hamstring Assistance Device

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Reduced functionality of the hamstring muscle creates a need for a device to assist in riding a bicycle. The project is to design a device to enable a person who has reduced usage of the hamstring muscle to ride a bicycle by aiding leg motion between the pedal angles of 180° to 225°. The device is for recreational cycling, and adaptable to a range of bicycles. Design concepts were made to store energy provided during the portion of the pedal stroke in which the user can provide power (0°-180°), so it could be utilized during the portion of the pedal stroke where the user cannot provide power due to their disability (180°-225°). The final design uses a pair of extension springs with a four stage pulley system to store energy and provide the range of motion for the pedal stroke.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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  • E-project-042816-132530
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Year
  • 2016
Date created
  • 2016-04-28
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