1 / 5

Prosthesis preference is related to stride-to-stride fluctuations at the prosthetic ankle

Prosthesis preference is related to stride-to-stride fluctuations at the prosthetic ankle. Shane R. Wurdeman, CP, MSPO; Sara A. Myers, PhD; Adam L. Jacobsen, CPO; Nicholas Stergiou, PhD. Aim Determine relationship between stride-to-stride fluctuations and prosthesis preference. Relevance

carla-schultz
Download Presentation

Prosthesis preference is related to stride-to-stride fluctuations at the prosthetic ankle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Prosthesis preference is related to stride-to-stride fluctuations at the prosthetic ankle Shane R. Wurdeman, CP, MSPO; Sara A. Myers, PhD; Adam L. Jacobsen, CPO; Nicholas Stergiou, PhD

  2. Aim • Determine relationship between stride-to-stride fluctuations and prosthesis preference. • Relevance • Stride-to-stride fluctuations in gait cycle may better quantify neuromuscular control related to prosthesis preference.

  3. Method • 13 people with unilateral transtibial amputation walked on treadmill for 3 min with their prescribed and an alternate prosthesis. • Stride-to-stride fluctuations were quantified with largest Lyapunov exponent (LyE) of each joint flexion/extension time series. • Change in LyE was calculated for each major lower-limb joint for both conditions. • Participants indicated preference between prostheses on continuous visual analog scale.

  4. Results • Change in LyE: • Correlated with degree of preference between prostheses at prosthetic ankle. • Change in LyE of prosthetic ankle: • Strongly related to degree of preference (r = 0.629, p = 0.02).

  5. Conclusion • Stride-to-stride fluctuations, quantified by LyE, are strongly related to patient’s perception of prosthesis. • Thus, LyE is first objective measure to detect changes in gait that relate to patient’s perception of prosthesis. • LyE should be further examined as potentially effective prescriptive and outcome measure in prosthetic rehabilitation.

More Related