Adaptive Weightlifting Prototypes for the Disabled.
These designs were part of my IB Design internal assessment. I worked on multiple prototypes showcased below. Amputees may not be able to utilize their hand as much as before, causing muscle atrophy and increased risk of injury. These different weightlifting devices will help those who are unable to grip with their hands be able to attatch weights to their arm and work out. This gave me insight on what designs were comfortable and useful which I applied to other prosthetic design projects.
Version 1: Initial design for testing and improvement.
Version 3: Version 1 with straps for the elbow in case the user has undergone transradial amputation and does not have a hand to restrict the device.
Version 5: A “cuff” design, enclosing on the arm all round. It is very stable and stiff, but also very uncomfortable.
Version 2: Adapted from Version 1, utilizing thermoforming in hot water to adjust plastic to fit the user’s arm. Version 1 was too rigid and not customizable.
Version 4: Designed to increase friction/grip on the arm by enclosing the arm all-round. The weight would be held on with a nylon strap.
Final Design: A mix of all the best elements of each design. Utilized the main form of version 3, but also increase the comfort by adding a TPU plate attached to the strap to increase comfort