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Habitual Physical Activity, Sedentary Behaviour and Bone Health in Rheumatoid Arthritis.

A Prioreschi1, M A Makda2, M Tikly2

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International Journal of Sports Medicine
|August 11, 2015
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Summary
This summary is machine-generated.

Higher physical activity levels are linked to better bone health in rheumatoid arthritis (RA) patients. Maintaining normal bone mineral density (BMD) in RA may be supported by increased light and moderate activity, and less sedentary time.

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Area of Science:

  • Rheumatology
  • Bone Metabolism
  • Physical Activity Research

Background:

  • Rheumatoid arthritis (RA) is a chronic inflammatory disease associated with an increased risk of osteoporosis and fractures.
  • Bone health is a significant concern for patients with RA, potentially influenced by disease activity, duration, and treatment.
  • The impact of habitual physical activity on bone mineral density (BMD) in RA patients requires further elucidation.

Purpose of the Study:

  • To investigate the association between habitual physical activity levels and bone mineral density (BMD) in female patients with rheumatoid arthritis (RA).
  • To determine if different levels of physical activity (sedentary, light, moderate) correlate with hip BMD in RA.
  • To explore the relationship between breaking up sedentary time and bone health in RA.

Main Methods:

  • Assessed bone mineral density (BMD) in 29 female RA patients, classifying them into normal or low hip BMD groups.
  • Utilized accelerometry to quantify habitual physical activity levels, including sedentary, light, and moderate activity.
  • Measured disease activity using the Clinical Disease Activity Index (CDAI) and considered disease duration.

Main Results:

  • Patients with normal hip BMD spent significantly less time in sedentary activities (65% vs. 73%) and more time in light (23% vs. 18%) and moderate (12% vs. 8%) activities daily compared to those with low BMD.
  • Higher habitual activity levels were observed in patients with normal BMD, independent of RA disease activity or duration.
  • Individuals with normal BMD also interrupted their sedentary time more frequently throughout the day (72 vs. 53 times/day).

Conclusions:

  • Higher habitual physical activity levels, characterized by reduced sedentary time and increased light to moderate activity, appear to be protective of bone health in rheumatoid arthritis patients.
  • Encouraging increased physical activity may be a beneficial strategy for preserving bone mineral density in individuals with RA.
  • These findings highlight the importance of physical activity as a modifiable factor in managing bone health within the RA population.