Aerobic capacity and disease activity in children, adolescents and young adults with juvenile idiopathic arthritis (JIA)
1 Department of Paediatric Immunology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, Netherlands
2 Department of Rheumatology, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
3 Child Development & Exercise Center, Wilhelmina Children’s Hospital, UMC Utrecht, Utrecht, The Netherlands
4 Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
Pediatric Rheumatology 2012, 10:25 doi:10.1186/1546-0096-10-25Published: 20 August 2012
As patients with juvenile idiopathic arthritis (JIA) progress into adulthood, long-term outcome is determined by disease activity, physical and psychosocial development. Decreased aerobic capacity may play a critical role in health-related outcomes in JIA, since it has been linked with cardiovascular morbidity and mortality in late adulthood. The objectives of the current study are to examine the aerobic capacity and its relation to parameters of disease activity in children, adolescents and young adults with JIA.
Sixty-three patients with JIA (aged 10–27 years) were cross sectional studied regarding their aerobic capacity and correlations were made to demographic, disease-related variables, and medication utilization. in a cross-sectional study group of 63 patients of all subtypes. Patients were divided in three age groups, 10–13 years; 14–17 years and 18–27 years.
Reduced aerobic capacity is found in clinical remission as well as active disease in all subtypes and all age groups. Aerobic capacity is more impaired in active disease shown by DAS 28, JADAS 27, ESR and serum thrombocyte counts. Lower haemoglobin has a negative impact. Long-term used medication including methotrexate and corticosteroids didn’t influence outcome. There is no association with current sports participation.
Reduced aerobic capacity is present in adolescents and young adults with JIA, both in active disease and in patients with remission. Measures of aerobic capacity may serve as important outcome measure in JIA.