Exercise Equipment

Christopher Bowman
Ryan Choate
Aaron Hamilton
Brandon Jones
Brandon Garrett


Our group is designing excercise equipment for someone who is blind and has balance issues.


Saturday September 10th we met with the child and her family in Livingston. The child is 14 years old, blind, has balance issues, and lacks full function in her right hand. The family expressed interest in equipment that would strengthen her right hand. The child is familiar with using a stationary bicycle and Ab-lounge.

Design Specifications

*The equipment must have a seat with a suportive back.
*It needs a fixed based so it stayes stationary while the child operates it.
*The equipment will need to be able to adjust for any future growth.
*A way to change the resistance of the equipment to meet her strength level.
*All moving parts must be inclosed to protect the child from injury.
*The equipment must be safe for everyone around the equipment while the child excercises.
*The equipment must be light-weight so it can be transported easily.
*The equipment needs to provide auditory feedback to the child's actions.

Design Concepts

All design concepts use a similiar setup that the child is already comfortable operating. The designs involve the child rotating pedals which turn a wheel that provides varying amounts of resistance depending on the setting.


The design requires the operator to rotate the pedals with their hands while seated. The family expressed interest in equipment that excercised her upper body notably her right hand. This design accomplishes that goal.

Concept Evaluation

Based on a 1-5 scale. 1 being worst and 5 being best.

Design # Cost - 10% Safety - 40% Durability - 20% Portability - 10% Ease of Use - 20% Total points
1 4 3 3 3 5 3.5
2 3 4 4 2 5 3.9
3 2 5 4 4.5 4 4.25

Design Overview

The final design is based off of a Pro-form 290 CSR Recumbent bike. This bike was chosen as a platform to build off of based on its wide stance and ease of modification. To make the bike more user friendly, the group will be doing a list of modifications. This includes enabling the seat to be able to rotate to the side for ease of loading, once seated the user will be able to rotate herself around and into proper position. A guide bar will also be run, coming from the back of the seat. The user will be able to use this bar as a guide for getting herself into and out of the seat. Another modification will be a better implemented design on the foot pedals. The current pedals do not have rear ankle support, allowing the foot to be able to turn inwards towards the machine preventing the risk of injury. A better design will be implemented to solve this risk. The bike has user controls and speakers already integrated but changes will be made to these. The user will have the ability to control different functions by recognizing relevant shapes on the control panel. As suggested by the users teaching aid, the team will be working to allow the user to control audio volume or selection by the speed at which she pedals, this will be used as an incentive to exercise.


Bill of Materials

Part Supplier Quantity Cost
Proform 290 CSR Dunham's 1 449.00
Turntable (Part #6640K1) McMaster-Carr 1 81.30
Metal Tubing and Plates Bennett Industries Inc. 3 32.00
Slide-On Round Grips McMaster-Carr 2 10.99
Magnetic Sensor Digi-Key 1 8.69
Relay Digi-Key 1 9.30
Total Cost: 591.28

Part Drawings

Assembly Instructions

Implemented Design

Summary and Conclusions