{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,7]],"date-time":"2023-11-07T21:24:04Z","timestamp":1699392244997},"reference-count":38,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2009,5,28]],"date-time":"2009-05-28T00:00:00Z","timestamp":1243468800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arthritis &amp; Rheumatism"],"published-print":{"date-parts":[[2009,6,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To examine the anaerobic\u2010to\u2010aerobic power ratio in children with juvenile idiopathic arthritis (JIA) compared with healthy peers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Sixty\u2010two patients with JIA (mean \u00b1 SD age 11.9 \u00b1 2.1 years, range 7.2\u201315.9 years) with varying severity of disease and 50 healthy children (mean \u00b1 SD age 12.1 \u00b1 2.1, range 8.4\u201315.9 years) participated in this study. Anaerobic power was measured using the Wingate Anaerobic Exercise Test. Aerobic power was measured using a cardiopulmonary exercise test. The power ratio was calculated as the ratio between the anaerobic mechanical power and aerobic mechanical power in watts.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean \u00b1 SD anaerobic\u2010to\u2010aerobic power ratio and peak anaerobic\u2010to\u2010aerobic ratios in children with JIA were 1.98 \u00b1 0.51 and 3.28 \u00b1 1.15, respectively. Compared with healthy children these differences were not statistically significant (<jats:italic>P<\/jats:italic> = 0.52 and <jats:italic>P<\/jats:italic> = 0.99, respectively). The differences in these ratios were not statistically significant when corrected for age, height, and body mass. Statistical analyses showed no significant difference between disease\u2010onset types of JIA for mean anaerobic\u2010to\u2010aerobic power ratio and peak anaerobic\u2010to\u2010aerobic ratio, respectively. Furthermore, there was no significant difference in the development of the power ratios between children with JIA and healthy controls, or between girls and boys.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This cross\u2010sectional study suggests that the development of the anaerobic\u2010to\u2010aerobic power ratio is not statistically different in children with JIA compared with healthy peers. Exercise training of the anaerobic capacity through interval training, along with aerobic exercise training, seems warranted in the exercise therapy programs of children with JIA.<\/jats:p><\/jats:sec>","DOI":"10.1002\/art.24536","type":"journal-article","created":{"date-parts":[[2009,5,28]],"date-time":"2009-05-28T20:07:42Z","timestamp":1243541262000},"page":"787-793","source":"Crossref","is-referenced-by-count":11,"title":["Anaerobic\u2010to\u2010aerobic power ratio in children with juvenile idiopathic arthritis"],"prefix":"10.1002","volume":"61","author":[{"given":"Marco","family":"van Brussel","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lieke","family":"van Doren","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian W.","family":"Timmons","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joyce","family":"Obeid","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janjaap","family":"van der Net","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul J. 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