Reliability of exercise testing and functional activity questionnaires in children with juvenile arthritis
Open Access
- 29 November 2007
- journal article
- research article
- Published by Wiley in Arthritis Care & Research
- Vol. 57 (8), 1446-1452
- https://doi.org/10.1002/art.23089
Abstract
Objective To determine the reliability of formal exercise testing and the reliability of functional and activity questionnaires in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA of any subtype ages 8–16 years who were recruited to a randomized trial comparing different exercise therapies participated in 2 preintervention sessions of exercise testing 2–6 weeks apart. Exercise testing included 1) submaximal oxygen uptake (VO2submax), 2) peak VO2 (VO2peak), and 3) anaerobic power using modified Wingate tests (Want). Two physical function questionnaires (the Childhood Health Assessment Questionnaire [C‐HAQ] and Revised Activity Scale for Kids [ASK]) and 1 daily physical activity questionnaire (the Habitual Activity Estimation Scale [HAES]) were also completed at these times. Test–retest reliability was assessed using type 3, intrarater intraclass correlation coefficient (ICC3,1) and Bland and Altman plots were used to determine limits of agreement. Results Data were available for 74 patients (58 girls). VO2submax, VO2peak, and Want demonstrated high reliability (ICC3,1 0.82, 0.91, and 0.94, respectively). C‐HAQ and ASK questionnaires also had very high reliability (ICC3,1 0.82 and 0.91, respectively). The HAES demonstrated low reliability for total activity score (ICC3,1 0.15) and moderate reliability when the number of very active hours was analyzed separately (ICC3,1 0.59). Conclusion Results of this investigation suggest that exercise testing and functional questionnaires in children with JIA are consistent and reliable. Reliability of the HAES total score was poor, but moderate when the very active hours subscale score was used.Keywords
This publication has 22 references indexed in Scilit:
- Aerobic and functional capacity in a group of healthy women: reference values and repeatabilityClinical Physiology and Functional Imaging, 2004
- Predictors of pain in children with established juvenile rheumatoid arthritisArthritis Care & Research, 2004
- Aquatic fitness training for children with juvenile idiopathic arthritisRheumatology, 2003
- The Reliability of Aerobic Capacity (VO2max) Testing in Adolescent GirlsResearch Quarterly for Exercise and Sport, 1996
- The role of children in reporting their physical disabilityArchives Of Physical Medicine and Rehabilitation, 1995
- Reproducibility of cardiorespiratory measurements during submaximal and maximal running in children.British Journal of Sports Medicine, 1995
- Measurement of health status in children with juvenile rheumatoid arthritisArthritis & Rheumatism, 1994
- The Significance of Clinical Change and Clinical Change of Significance: Issues and MethodsAmerican Journal of Occupational Therapy, 1988
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986