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A Stiff Price to Pay: Does Joint Stiffness Predict Disability in an Older Population?
Author(s) -
Thakral Manu,
Shi Ling,
Shmerling Robert H.,
Bean Jonathan F.,
Leveille Suzanne G.
Publication year - 2014
Publication title -
journal of the american geriatrics society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.992
H-Index - 232
eISSN - 1532-5415
pISSN - 0002-8614
DOI - 10.1111/jgs.13070
Subject(s) - medicine , stiffness , joint stiffness , physical therapy , population , confidence interval , cohort , cohort study , physical medicine and rehabilitation , environmental health , structural engineering , engineering
Objectives To describe the prevalence of joint stiffness and associated comorbidities in community‐living older adults and to determine whether joint stiffness, independent of pain, contributes to new and worsening disability. Design Population‐based cohort. Setting Urban and suburban communities in the Boston, Massachusetts, area. Participants Adults aged 70 and older (N = 765) underwent a baseline home interview and clinic examination, 680 participants completed the 18‐month follow‐up. Measurements Morning joint stiffness on most days in the past month was assessed in the arms, back, hips, and knees. Mobility limitations were measured using self‐reported difficulty and the Short Physical Performance Battery ( SPPB ). The home interview and clinic examination included extensive health measures. Results Four hundred one participants reported morning joint stiffness, half of these with one site of stiffness and the other half with multisite stiffness. Twenty percent of participants with multisite stiffness and 50% with single site stiffness did not have a major stiffness‐associated condition. After adjustment for pain severity and other covariates, multisite stiffness was associated with a 64% greater risk of developing new or worsening mobility difficulty (relative risk = 1.64, 95% confidence interval = 1.05–2.79). Those with multisite stiffness had declined more quickly in physical performance over the 18‐month follow up. Conclusion Older adults with multisite stiffness are more likely to be at risk of disability than those without joint stiffness after accounting for pain severity and the presence of stiffness‐associated conditions. Better assessment, along with strategies to prevent and treat multisite joint stiffness is needed to prevent or slow the progression of disability in elderly adults.

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