In a nutshell
This study examined the role of physical activity in rheumatoid arthritis (RA). The authors concluded that patients with RA are mostly active at light intensities. Light physical activity was found to reduce cardiovascular risk and also improved RA outcomes.
Some background
Patients with rheumatoid arthritis (RA) can experience ongoing pain and swollen joints. This limits a patient’s mobility, which may prevent them from being able to exercise. Physical activity is important for cardiovascular health (health of the heart and blood vessels). Moderate-intensity exercise is generally recommended to maintain a healthy lifestyle. Light-intensity activities are more suitable for patients with RA. They may also help lower cardiovascular risks and improve RA outcomes.
Methods & findings
98 patients with RA were included in this study. Physical activity was measured automatically using an activity monitor. This recorded the amount of time per day spent in sedentary (minimal activity), very light, light, and moderate activities. Cardiovascular risk factors such as body mass index (BMI; an indicator of weight that takes height into account), blood pressure, insulin levels, and cholesterol were measured. Changes in disease activity and disability were also recorded.
Only 17% of participants met the recommended level of 150 minutes of moderate activity per week. On average, patients were sedentary for 9.8 hours per day. Average time per day in very light activity was 3.5 hours. This was 2.1 hours for light activity and 35 minutes for moderate activity.
Greater time spent doing very light, light, or moderate activity significantly reduced cardiovascular risk factors. These included lower BMIs, reduced blood pressure, and improved insulin and cholesterol levels. More sedentary behavior was largely associated with higher BMI. Higher levels of activity were also associated with lower disease activity and disability.
The bottom line
The authors concluded that even light or very light physical activities can reduce cardiovascular risk, disability and disease activity in RA patients.
The fine print
The RA population examined in this study was mostly sedentary and overweight. Larger studies are needed to confirm these results.
What’s next?
Speak to your doctor before taking up a new exercise routine.
Published By :
Arthritis Care & Research
Date :
Aug 28, 2015
