Menard 1992.

Methods	Within‐subject, cross‐over design.
Participants	8 physically active men with unilateral traumatic transtibial amputation, mean age 37 years (range 31‐51), mean time since amputation was 8.1 years (range 4‐15). Country: Canada
Interventions	1. Flex‐foot 2. Seattle Foot Participants walked on a 20m indoor runway with a force platform, they walked at their natural cadence.
Outcomes	Ground reaction forces (in units of newtons per kilogram body mass (N/kg))
Notes	The participants had used the two prostheses for equal amounts of time for at least two weeks before testing.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	D ‐ Not used