Relationship between lower limb neuromuscular performance and bone strength in postmenopausal women with mild knee osteoarthritis
Munukka, M., Waller, B., Multanen, J., Rantalainen, T., Häkkinen, A., Nieminen, M., . . . Heinonen, A. (2014). Relationship between lower limb neuromuscular performance and bone strength in postmenopausal women with mild knee osteoarthritis. Journal of Musculoskeletal Neuronal Interactions, 14 (4), 418-424. Retrieved from http://www.ismni.org/jmni/pdf/58/03MUNUKKA.pdf
Published inJournal of Musculoskeletal Neuronal Interactions
Objectives: To investigate whether neuromuscular performance predicts lower limb bone strength in different lower limb sites in postmenopausal women with mild knee osteoarthritis (OA). Methods: Neuromuscular performance of 139 volunteer women aged 50-68 with mild knee OA was measured using maximal counter movement jump test, isometric knee flexion and extension force and figure-of-eight-running test. Femoral neck section modulus (Z, mm³) was determined by data obtained from dualenergy X-ray absorptiometry. Data obtained using peripheral quantitative computed tomography was used to asses distal tibia compressive (BSId, g2/cm4) and tibial mid-shaft bending (SSImaxmid, mm3) strength indices. Results:After adjustment for height, weight and age, counter movement jump peak power production was the strongest independent predictor for Z (β=0.44; p<0.001) and for BSId (β=0.32; p=0.003). This was also true in concentric net impulse for Z (β=0.37; p=0.001) and for BSId (β=0.40; p<0.001). Additionally, knee extension force (β=0.30; p<0.001) and figure-of-eight-running test (β= -0.32; p<0.001) were among strongest independent predictors for BSId after adjustments. For SSImaxmid, concentric net impulse (β=0.33; p=0.002) remained as the strongest independent predictor after adjustments. Conclusions: Neuromuscular performance in postmenopausal women with mild knee OA predicted lower limb bone strength in every measured skeletal site. ...
PublisherThe International Society of Musculoskeletal and Neuronal Interactions
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