Requirement: The device must reduce the user’s energy expenditure relative to axillary crutches
Method: Users took 20 strides using both the Ergo-Crutch and the axillary crutch (random order of treatment) and were then asked how tired they feel on a scale of 1-10
Acceptance Criteria: Lower survey scores for the Ergo-Crutch (p<0.05).
Results: Lower survey scores for the axillary crutch (p<0.05)
Outcome: Fail