Upper Extremity Instrument for Testing Shoulder Mobility

Team Members

Problem Statement

There currently exists a clinical need for a system that evaluates upper extremity mobility and function in pre and post-operative shoulder patients. There is no advertised apparatus capable of performing multiple upper extremity tests alongside a motion capture system. Shoulder Team Six has undertaken this challenge and designed a functional prototype that is capable of obtaining data that validates the necessity for surgery and evaluates its effectiveness weeks to months after operation. The device aims to provide a quick and effective method of evaluating key movements performed in everyday life so that patient care can be improved.

Six Functional Tasks

Functional overhead reach
Internal shoulder rotation with elevation
External shoulder rotation with elevation
Lifting weighted objects to different heights
Personal care reach behind
Computer work environment typing task

Design needs and specifications

	Design Need	Specification
A	Features to allow for the testing of 6 main movements	1. Functional Overhead Reach 2. Internal shoulder rotation with elevation 3. External shoulder rotation with elevation 3. Lifting weight to different heights 4. Personal care reach behind 5. Computer work environment typing task
B	Able to fit and test the majority of users	Anthropometric data must include 5th-95th percentile Must allow testing no matter the range-of-motion abilities
C	Does not block motion capture cameras	At least 2 cameras must see all parts of user at all times
D	Dull/non-reflective finish	<19 Light Reflection Value (LRV)
E	Movable by one person	Wheels present Pushing weight <40lbs
F	Device does not move or shift during testing	Wheel locks present