Feasibility of personalised hip load modification using real-time biofeedback in hip osteoarthritis: A pilot study

• DOI: 10.1016/j.ocarto.2021.100230
• Publication Date: 2021-12-25T01:37:36Z
• Authors: Laura E. Diamond; Daniel Devaprakash; Bradley Cornish; Melanie L. Plinsinga; Andrea Hams; Michelle Hall; Rana S. Hinman; Claudio Pizzolato; David J. Saxby
• Keywords: Biofeedback; Manual therapy; Treadmill

(i) Compare the feasibility of three load modification strategies to immediately increase hip contact force in people with osteoarthritis (OA) using real-time visual biofeedback during walking, and (ii) prospectively evaluate changes pain physical function following 6-weeks walking a prescribed personalised strategy.Twenty participants symptomatic mild-to-moderate OA walked on an instrumented treadmill while motion capture electromyographic data were recorded (normal walk), then under conditions: (i)neutral trunk lean; (ii)neutral pelvic obliquity; (iii)increased step length. The biomechanical parameter interest corresponding target value displayed real-time. Hip forces subsequently computed calibrated electromyography-informed neuromusculoskeletal model. A decision tree was used prescribe strategy each participant for integration into over 6-weeks.Only length significantly increased peak compared normal when performed by all (11.34 [95%CI 4.54,18.13]%, P ​< ​0.01). After strategy, both neutral pelvis (n ​= ​5, 11.88[95%CI -0.49,24.24]%) ​10, 12.79[95%CI 0.49,25.09]%) subgroups >10%. 6-weeks, 77% 46% reported clinically important improvement function, respectively.Most could through movement retraining magnitude estimated promote cartilage heath symptoms after 6-weeks. Findings provide preliminary support modification-based intervention OA.