Aim 1: Develop and validate a methodology to measure multi-segment foot energetics while shod.
Aim 2: Characterize typical foot energetics while walking shod at different walking speeds.
Aim 3: Evaluate how different footwear (including deformable foot orthoses) affect multi-segment foot energetics while walking.
Aim 4: Discover whether walking with carbon fiber insoles increases self-selected walking velocity.