Congratulations to PoWeR Lab PhD student Pawel Golyski for being first author of recently published work in the Journal of the Royal Society Interface. This work used a split-belt treadmill to impose energetic demands on the legs during walking and then investigated which joints reflected that energy – primarily the ankle of the perturbed leg and the knee of the unperturbed leg. This finding could inform the design of exoskeletons and prostheses to better be able to mediate the energetic demands associated with instability.