Ground reaction force patterns in knees with and without radiographic osteoarthritis and pain: descriptive analyses of a large cohort (the Multicenter Osteoarthritis Study).

ABSTRACT:

Objective

To compare ground reaction force patterns (GRF) during walking among legs defined by presence or absence of knee pain and/or radiographic knee osteoarthritis (ROA).

Method

Principal component analysis extracted major modes of variation (PCs) in GRF data from the Multicenter Osteoarthritis Study during self-paced walking. Legs were categorized as pain + ROA (n = 168), ROA only (n = 303), pain only (n = 476), or control (n = 1877). Relationships between group and GRF PCs were examined using Generalized Estimating Equations, adjusted for age, sex, body mass index, race, and clinic site with and without additional adjustment for gait speed.

Results

With or without speed adjustment, pain + ROA had flatter vertical GRF waveforms than control (speed adjusted PC2 di

SUBMITTER: Costello KE 

PROVIDER: S-EPMC8319033 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature