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Anaerobic-to-aerobic power ratio in children with juvenile idiopathic arthritis
Arthritis Care and Research , 06/03/09

Van Brussel M et al. - This cross-sectional study suggests that the development of the anaerobic-to-aerobic 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.

Exclusive Author Commentary
Tim Takken, 06/04/09

Our observations suggest that in children with JIA aerobic and anaerobic capacity is affected to a similar degree. However, for a given age, there was a large range, more so than for healthy children, in power ratios between patients. We expect it is this individual variability that is important for the design of individualized exercise programs. For example, children with JIA that exhibit a relatively low aerobic power and a high anaerobic power are likely to benefit more from aerobic exercise than anaerobic exercise, while children with a high aerobic power and a low anaerobic power are likely to benefit more from anaerobic exercise than aerobic exercise. We believe that the anaerobic-to-aerobic power ratio captures this information more precisely than measuring each component of fitness individually, and this will signficantly advance our capacity to individually tailor exercise training programs to be effective.

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