Challenge:  Shadow Boxing Stabilizer
Challenger:  Walter Reed National Military Medical Center, Occupational Therapy Department
University Partner:  California Polytechnic State University, SLO
Student Team:  Gelene Amog, Clara Lin, Nicolas Rasmussen, and Daniel Tepper
Faculty Advisor:  Dr. Vladimir Prodanov
QL+ Program Manager: Vanessa Salas

Shadowboxing Stabilizer Project.jpeg 2.06 MB

Project Summary:

Shadowboxing is an effective form of physical therapy to improve balance and strength, but this
exercise can be challenging for individuals with limited balance abilities. The goal of our senior
design project is to develop an assistive device that allows service members and veterans with a
variety of balance abilities to shadowbox safely. Our device is designed to meet the needs of
Occupational Therapy Assistant Harvey Naranjo at the Walter Reed National Military Medical
Shadowboxing Stabilzer Clara and Gelene.jpeg 1.94 MB

Requirements for the shadowboxing stabilizer device are as follows:

1. Supports partial bodyweight of user
2. Accommodates users of different sizes
3. Provides a full range of motion while shadowboxing
4. Folds for easy storage

Our final design meets these requirements through the following components:

1. Interchangeable resistance bands and harness provide partial body weight support
2. Height-adjustable frame

3. Caster wheels allow the device to move with the user or lock in a static position

4. Foldable frame fits in a storage closet

Due to quarantine and social distancing measures, our team was not able to manufacture or test
the device. Manufacturing this device consists mainly of cutting aluminum tubes, cutting holes in
those tubes, and welding them together. The legs will need to be bent and made sure that they are
the exact same length so that the device is stable. Manufacturing of the device can be done at a
later date by another Cal Poly team, a Cal Poly professor, or outsourced to an external

These testing methods would be performed on components of the device:

1. Tensile testing on the resistance bands for material properties after multiple physical
therapy sessions

2. Maximum load testing to ensure the device frame can handle a load of 250 pounds
3. Wear testing to view the durability of the harness loops when connected to resistance

ShadowBoxing Stabilizer Nic.png 1.93 MB
Our team will hand off the manufacturing drawings, materials, and testing plan for future
completion of this project. Future steps for this project include completing manufacturing and
testing, then shipping the final device to Harvey Naranjo in Washington, D.C.
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