Results The literature review and meta- analysis identified decreased PA and increased time spent in SB in these population s , which may exacerbate both their lower physical fitness and the symptoms of their health disorders .
Background Physical activity ( PA ) is essential for children throughout their growth and maturation .
It improves physiological and psychological health and limits the risk of developing metabolic disorders .
However , some chronic physiological and metabolic diseases may lead to decreased PA .
The diversity of outcomes in the literature offers no consensus for physical activity and sedentary levels in children with juvenile idiopathic arthritis ( JIA ) or inflammatory bowel disease ( IBD ) .
The aim was to examine  PA and SB  in children with JIA or IBD compared to their healthy peers .
Lean body mass, physical activity and quality of life in paediatric patients with inflammatory bowel disease and in healthy controls.
BACKGROUND AND AIMS Physical activity is important for muscle and bone strength in the growing child and may be impaired in paediatric patients with inflammatory bowel disease ( IBD ) even during quiescent disease . The SenseWearPro(2 ) armb and allows to measure physical activity under everyday life conditions . METHODS Thirty-nine IBD patients ( 27 Crohn 's disease , 12 ulcerative colitis , 24 boys ) in remission ( n=26 ) or with only mild disease activity ( n=13 ) were compared to 39 healthy age and sex-matched controls .  Body weight , height , body mass index ( BMI ) , lean body mass as phase angle α ( determined by bioelectrical impedance analysis ) , and dynamometric grip force were expressed as age- and sex-related Z-scores . SenseWearPro(2 ) armb and s were applied for three consecutive days to record number of steps , duration of physical activity and sleeping time . Quality of life was assessed with the German KINDL and IMPACT III question naires , energy intake with prospect i ve food protocol s. Differences between patients and pair-matched controls were analysed by paired t-test . RESULTS Patients showed lower Z-scores for phase angle α ( difference -0.72 ; 95 % CI [ -1.10 ; -0.34 ] ) and lower grip strength ( -1.02 [ -1.58 ; -0.47 ] ) than controls . They tended towards lesser number of steps per day ( -1339 [ -2760 ; 83 ] ) and shorter duration of physical activity ( -0.44 h [ -0.94 ; 0.06 ] ) , particularly in females and patients with mild disease . Quality of life and energy intake did not differ between patients and controls . CONCLUSION In spite of quiescent disease lean body mass and physical activity were reduced . Interventions to encourage physical activity may be beneficial in this lifelong disease
Results The literature review and meta- analysis identified decreased PA and increased time spent in SB in these population s , which may exacerbate both their lower physical fitness and the symptoms of their health disorders .
Background Physical activity ( PA ) is essential for children throughout their growth and maturation .
It improves physiological and psychological health and limits the risk of developing metabolic disorders .
However , some chronic physiological and metabolic diseases may lead to decreased PA .
The diversity of outcomes in the literature offers no consensus for physical activity and sedentary levels in children with juvenile idiopathic arthritis ( JIA ) or inflammatory bowel disease ( IBD ) .
The aim was to examine  PA and SB  in children with JIA or IBD compared to their healthy peers .