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Abstract Number: 2942

Dyadic Study of Partner Social Support for Physical Activity and Its Role in the Initiation and Maintenance of Increased Physical Activity Among Insufficiently Active People with Hip/Knee Osteoarthritis

Christine Rini1, Derek Hales2, Stephanie Bahorski2, Mary Altpeter2, Dana Carthron3, Ashley Phillips2, Julie Upchurch2, Ida Griesemer2, Heather Wasser2, Sandra Soto2, Shelby Rimmler2, Beyla Patel2, Katrina Ellis2 and Leigh F. Callahan4, 1Biomedical Research, Hackensack University Medical Center, Hackensack, NJ, 2University of North Carolina at Chapel Hill, Chapel Hill, NC, 3University of Michigan, Ann Arbor, MI, 4Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC

Meeting: 2018 ACR/ARHP Annual Meeting

Keywords: physical activity and social support

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Session Information

Date: Wednesday, October 24, 2018

Session Title: 6W016 ARHP Abstract: Interventions & Self-Management–ARHP III (2940–2945)

Session Type: ARHP Concurrent Abstract Session

Session Time: 9:00AM-10:30AM

Background/Purpose: People who increase their physical activity (PA) (e.g., in an intervention) typically return to a less active lifestyle within 3-6 months. Yet, the health benefits of a more active lifestyle require lasting behavior change. In people with osteoarthritis (PWOA), increasing PA can reduce chronic joint pain. The present study examined social support for PA from a committed romantic partner as a facilitator of lasting PA change. We sought to clarify types of partner support associated with short- and long-term PA increases in insufficiently active PWOA.

Methods: Participants included people with hip/knee OA who self-reported <120 minutes of moderate-to-vigorous PA (MVPA) per week and their partner (N=116 couples). Couples attended a group class on OA, PA, and working together to help PWOA become more active. After class they were instructed to complete the Active Living Everyday Workbook (12 chapters, 1 per week) and to read a study booklet on social support for PA. Partners could try to increase their PA, but that was not a focus of the study. Participants independently completed a pre-class baseline assessment and follow-up assessments at 3-, 6-, and 12-months post-class. At each assessment, they wore an accelerometer and completed questionnaires, including 2 validated measures of partner support for PA. Partners reported support they provided to their PWOA, and PWOAs reported support they received from their partner. PWOAs’ accelerometer-assessed MVPA at each assessment was categorized as: 0=minimal (<45 min/week), 1=insufficient (45 to <60 min/week), 2=borderline (60 to <150 min/week), or 3=exceeding recommendations (≥150 min/week).

Results: Factor analysis of our data suggested 2 main ways partners could support PA: (1) enacted informational, instrumental, and emotional support for PA (general support) and (2) doing PA with the PWOA (collaborative support). We conducted ordinal logistic regressions predicting PWOAs’ level of MVPA at 3-, 6-, and 12-months, adjusting for their baseline MVPA and demographic and medical characteristics. Support variables evaluated in the models included PWOA-reported general and collaborative support received and partner-reported general and collaborative support provided. In models predicting MVPA at all assessments, PWOAs’ baseline MVPA significantly predicted their MVPA at follow-up assessments (p’s <.001). At 3 months, there were no associations between the support variables and PWOAs’ level of MVPA. PWOAs with a higher level of MVPA at 6 months had partners who reported providing more collaborative support at baseline (p=.04). PWOAs with a higher level of MVPA at 12 months reported receiving greater general partner support for PA at the 6- and 12-month follow-ups (p’s=.03-.04) and they tended to have more partner-reported collaborative support for PA at baseline and at the 12-month follow-up (p’s .07-.09).

Conclusion: Findings suggest that partner support for PA may play a more critical role in maintenance than in initiation of PA over the course of a year, especially with respect to PWOAs’ reports that partners had recently provided them with general support for PA. We will discuss implications for interventions.


Disclosure: C. Rini, None; D. Hales, None; S. Bahorski, None; M. Altpeter, None; D. Carthron, None; A. Phillips, None; J. Upchurch, None; I. Griesemer, None; H. Wasser, None; S. Soto, None; S. Rimmler, None; B. Patel, None; K. Ellis, None; L. F. Callahan, Lilly, 5.

To cite this abstract in AMA style:

Rini C, Hales D, Bahorski S, Altpeter M, Carthron D, Phillips A, Upchurch J, Griesemer I, Wasser H, Soto S, Rimmler S, Patel B, Ellis K, Callahan LF. Dyadic Study of Partner Social Support for Physical Activity and Its Role in the Initiation and Maintenance of Increased Physical Activity Among Insufficiently Active People with Hip/Knee Osteoarthritis [abstract]. Arthritis Rheumatol. 2018; 70 (suppl 10). https://acrabstracts.org/abstract/dyadic-study-of-partner-social-support-for-physical-activity-and-its-role-in-the-initiation-and-maintenance-of-increased-physical-activity-among-insufficiently-active-people-with-hip-knee-osteoarthrit/. Accessed March 1, 2021.
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