Physical activity and health-related quality of life in chronic non-bacterial osteomyelitis

Table 3 Results of exercise testing and accelerometry: CNO compared to HC

	CNO (n = 15)	HC (n = 15)	P-values
Cycle ergometry
Wpeak (% predicted)	106 [90; 114]	99 [94; 107]	0.8040
HRpeak (% predicted)	95 [93; 100]	98 [93; 101]	0.6387
VO2peak (% predicted)	95 [87; 109]	93 [86; 100]	0.7197
RQmax	1.14 [1.08; 1.17]	1.17 [1.14; 1.19]	0.0488*
Accelerometry (% of time spent in each activity level)
sedentary physical activity	66 [62; 72]	69 [60; 78]	0.6257
light physical activity	25 [21; 27]	23 [18; 29]	0.8077
moderate physical activity	7 [7; 8]	7 [5; 10]	0.9515
vigorous physical activity	1 [0; 2]	1 [1; 2]	0.6587

Results presented as median [95% confidence interval of median]. Statistical analysis performed using Wilcoxon sign rank test. Results of the exercise test (cycle ergometry) and of the accelerometry (measured for 7 consecutive days at the right hip) did not show any significant differences between patients with CNO and HC
Wpeak: maximal power in % predicted according to Godfrey-protocol [16], HRpeak: peak heart rate in % predicted according to Rowland for teenagers between 13 and 17 years [18] and Fairbarn [19] for adults. VO2peak: peak oxygen update in %predicted according to Orenstein [17], RQmax: peak respiratory quotient

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