Background Previous studies indicate that patients with systemic lupus erythematosus (SLE) have a reduced physical activity compared to controls and public health recommendations. However, most studies have used questionnaires without expressing the energy requirements for the activities.
Objectives We investigated if self-reported physical activity, expressed in Metabolic Equivalent of Task (METs)-minutes/week, in patients with SLE is reduced. The aim was also to investigate if they fulfil the public health recommendations for physical activity.
Methods 103 patients (93 women/10 men, mean age 51.5 (SD 15.9) years) with SLE according to the 1982 revised ACR criteria for SLE were involved. Physical activity was assessed with the short version of the International Physical Activity Questionnaire (IPAQ), which measure physical activity the last seven days. The IPAQ scientific group classify physical activity into the following categories: “inactive”, “minimally active”(equal to public health recommendations) and “health enhancing physical activity”. Those individuals who do not meet the criteria for the two latter categories are considered inactive.
Results The patients reported that they were physically active in median 1666 (interquartile range 693; 3759) METs-minutes/week (n=84). The patients answered that they were sitting in median 6 (interquartile range 4; 8) hours/day the last week (n=98). 59.6% of the patients achieved a minimum of at least 600 METs-minutes/week, i.e. they were active 5 or more days with any combination of walking, moderate-intensity or vigorous intensity activities (“minimally active”). 17.9% achieved a minimum of at least 1500 METs-minutes/week, i.e. they were active on vigorous-intensity on at least 3 days or; achieved a minimum of at least 3000 METs-minutes/week, i.e. they were active 7 or more days on any combination of walking, moderate-intensity or vigorous intensity activities (” health enhancing physical activity”). 22.6% of the patients were “inactive”.
Conclusions In the investigated patients with SLE, the majority were “minimally active” according to IPAQ-categories, which is sufficiently physically active according to the minimum level of public health recommendations. However, only 1/5 reached “health enhancing physical activity” category and 1/5 were considered physically “inactive”. Health professionals could use the short version of IPAQ to find out which patients with SLE need support in physical activity programmes.
Eriksson K et al. Physical activity in patients with systemic lupus erythematosus and matched controls. Scand J Rheumatol 2012; 41: 290–297.
Ahn GE et al. Self-reported and objectively measured physical activity in adults with systemic lupus erythematosus. Arthritis Care & Research 2015; 67:701–707.
Disclosure of Interest None declared