Do individuals with knee osteoarthritis walk with distinct knee biomechanics and muscle activation characteristics? An investigation of knee osteoarthritis, hip osteoarthritis, and asymptomatic groups.
Abstract
Knee osteoarthritis is a musculoskeletal condition affecting mobility and function. Hallmark biomechanical indicators have been linked knee OA severity and progression, yet it remains unknown whether these are exclusive to the OA knee. Thesis objectives were to determine whether these gait outcomes were unique to those with knee OA by concurrently investigating groups of asymptomatic individuals and those with hip OA. Forty-eight participants walked on an instrumented treadmill while knee motion, ground reaction forces, and electromyographic signals were collected. Lateral: medial activation ratios were computed for the surrounding knee muscles. Hamstring muscle activation is affected by hip OA in a direction opposite to knee OA and provides a gait outcome that is unique in the knee OA disease. In the other studied features, similarities either exist between hip OA and knee OA (sagittal plane moments), or asymptomatic and knee OA (frontal plane moments) or all three groups (sagittal plane motion).
Collections
Related items
Showing items related by title, author, creator and subject.
-
Obesity is associated with higher absolute tibiofemoral contact and muscle forces during gait with and without knee osteoarthritis
Harding, Graeme T; Dunbar, Michael J; Hubley-Kozey, Cheryl L; Stanish, William D; Astephen Wilson, Janie L (Elsevier, 2016-01)Background Obesity is an important risk factor for knee osteoarthritis initiation and progression. However, it is unclear how obesity may directly affect the mechanical loading environment of the knee joint, initiating ... -
Effect of a high intensity quadriceps fatigue protocol on knee joint mechanics and muscle activation during gait in young adults.
Murdock, GH; Hubley-Kozey, CL (SpringerLink, 2012-02)The purpose of this study was to determine the effect of impaired quadriceps function on knee joint biomechanics and neuromuscular function during gait. Surface electromyograms, three-dimensional motion and ground reaction ... -
Asymptomatic and symptomatic individuals with the same radiographic evidence of knee osteoarthritis walk with different knee moments and muscle activity
Astephen Wilson, Janie L; Stanish, William D; Hubley-Kozey, Cheryl L (Wiley, 2016-11-01)There is an established discordance between the structural joint damage and clinical symptoms of knee osteoarthritis; however, there has been little investigation into the differences in joint level biomechanics and muscle ...