Spinner - Physical Therapy Trike
Objective
Deliver a fully functional prototype to facilitate and strengthen arm and trunk movement for home and office pediatric physical therapy.
Design Statement
Spinner reimagines physical therapy and shifts the stigma of therapy devices by creating a fun and engaging activity for children of various ages and abilities. The universal design lowers the cost and allows therapists to quickly create a variable trainer for office and home use.
My Role
I acted as the lead designer with a team of engineers. I coordinated my team using the design process to facilitate user research and complete a final prototype.
Timeline
May 2017 - July 2017
Team Members
Industrial Designer + Mechanical Engineer + Biomedical Engineer
Sponsor
Georgia Tech Rehabilitation Engineering and Applied Research Lab
What exists already?
AmTryke $750-$1300
Adjustable seating and multiple straps to properly secure the child but there is no core movement
Parent pole allows adult to participate and facilitate movement
Expensive and difficult to transport
Mason Exer-Rider $330
High seat back and straps provide support, but the child is unable to reach handles and twist properly
Colorful and playful design but lacks in movement for weak children
Radio Flyer Cyclone $55
Little to no back support and lacks area to attach straps
One size and resistance with low traction wheels is hard for weak children
Fun and engaging motion that activates core and arm muscles
Why can’t some kids use toys for exercise?
Understanding the Users
Patient
Wants a fun and easy to use toy
Needs a safe and secure environment
Parents
Wants an easy to clean and low cost device
Needs a wide age range and durability
Therapists
Wants a modular and engaging device
Needs a range of difficulty and simple interface
Journey Map
What makes a good therapy device?
Design Specifications
Primary:
Ages 2-8
Engages trunk and arms
Trunk support
Parent pole
Secondary:
Adjustable straps
Variable resistance
Fun and safe
Tertiary
Lightweight
variable resistance
Easy to clean
Multi-terrain
Final Design
Spinner’s modular system allows therapists to use their common therapy tools with the trike. Its aluminum frame is lightweight, compact, and easy to transport. Durable wheels means the trike can be used outdoors for recreation, and the parent pole lets parents or therapists aid in the child’s use of Spinner. Therabands can be attached to the front or rear of the trike to assist or resist the child’s extension or retraction of their arms. The gait belts are adjustable to meet the child’s needs, and the large footplate ensures the child’s legs and feet stay in the frame. The added acrylic shields add protection to the child’s hands from the wheels.
Trike in Use
We tested the final trike ourselves and with local kids ages 11-14. The dual wheels facilitated spinning motions and quick acceleration. Our intended user, Olivia, was excited to use Spinner and still uses at home today as her personal indoor and outdoor trike.
Future Changes
Widen the frame to accommodate for longer handles for better grip
Disconnect the handles from the wheels to allow for free rolling
Make a larger version for adults to use comfortably