Discussion
post-stroke, paretic limb post-stroke
We examined the immediate effects of TLA and AGRF biofeedback on kinetic and kinematic gait variables of post-stroke individuals. When compared to a no-feedback control trial, in response to both ARGF and TLA real-time audiovisual biofeedback, participants increased paretic limb AGRF and paretic TLA, while decreasing interlimb asymmetry of both AGRF and TLA. Furthermore, TLA biofeedback induced larger paretic limb TLA increases compared to AGRF biofeedback. In conjunction with feedback-induced increases in TLA, we observed increases in non-paretic leg step length for both types of gait feedback. Overall, participants were able to meet the target provided during gait biofeedback. AGRF biofeedback also significantly increased peak ankle moment. Taken together, our results suggest that real-time TLA biofeedback elicits immediate, targeted changes of the paretic limb post-stroke, like the results of a recent study on able-bodied individuals [