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Dynamic postural control correlates with activities of daily living and quality of life in patients with knee osteoarthritis

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Title: Dynamic postural control correlates with activities of daily living and quality of life in patients with knee osteoarthritis
Authors: Sabashi, Kento Browse this author
Ishida, Tomoya Browse this author
Matsumoto, Hisashi Browse this author
Mikami, Kentaro Browse this author
Chiba, Takeshi Browse this author
Yamanaka, Masanori Browse this author
Aoki, Yoshimitsu Browse this author
Tohyama, Harukazu Browse this author
Keywords: Knee osteoarthritis (OA)
Center of pressure (COP)
Balance
Single-leg standing
Transition
Patient reported outcome measures
Activities of daily living (ADL)
Quality of life (QOL)
Issue Date: 18-Mar-2021
Publisher: BioMed Central
Journal Title: BMC musculoskeletal disorders
Volume: 22
Issue: 1
Start Page: 287
Publisher DOI: 10.1186/s12891-021-04164-1
Abstract: BackgroundKnee osteoarthritis (OA) negatively affects dynamic postural control, which is a basic function that individuals use to perform activities of daily living (ADL). The purpose of this study was to investigate the associations of center of pressure (COP) control during the transition from double-leg to single-leg standing with subjective assessments of ADL and quality of life (QOL) in patients with knee OA.MethodsThirty-six patients (29 females) with moderate-to-severe knee OA participated. Dynamic postural control was evaluated during the transition from double-leg to single-leg standing. Each patient stood on a force plate, lifted the less affected limb as fast as possible, and maintained single-leg standing with the more affected limb. The COP movements corresponding to anticipatory postural adjustment (APA) and transitional phases were assessed. The maximum displacement and peak velocity of the COP movements in the medial-lateral direction were calculated. The Knee Injury and Osteoarthritis Outcome Score (KOOS) was used for the subjective assessment of ADL and QOL. Pearson's product correlation analysis was performed to investigate the associations of COP movements in the APA and transitional phases with KOOS-ADL and KOOS-QOL.ResultsIn the APA phase, the maximum COP displacement was significantly correlated with KOOS-ADL (r = -0.353, P=0.035) and KOOS-QOL (r = -0.379, P=0.023). In the transitional phase, the maximum COP displacement and peak COP velocity were significantly correlated with KOOS-ADL (maximum displacement: r=0.352, P=0.035; peak velocity: r=0.438, P=0.008) and with KOOS-QOL (maximum displacement: r=0.357, P=0.032; peak velocity: r=0.343, P=0.040).ConclusionsThe present study showed that smaller COP movements in the APA phase and smaller and slower COP movements in the transitional phase correlated with poorer ADL and QOL conditions in patients with knee OA. These findings suggest that poor dynamic postural control is associated with poor ADL and QOL conditions in patients with moderate-to-severe medial knee OA. Conservative treatment for patients with knee OA may need to focus on dynamic postural control during the transition from double-leg to single-leg standing.
Type: article
URI: http://hdl.handle.net/2115/81145
Appears in Collections:保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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