MVPA in children/adolescents with chronic disease appear to be well below guideline recommendations , although comparable with activity levels of their healthy peers except for children with malignancies .
CONTEXT Moderate-to-vigorous physical activity ( MVPA ) and sedentary time ( ST )  are important for child and adolescent health .
OBJECTIVE To examine habitual levels of accelerometer measured MVPA and ST  in children and adolescents with chronic disease , and how these levels compare with healthy peers .
Gender differences in objectively assessed physical activity in asthmatic and non-asthmatic children.
OBJECTIVE To compare objective ly assessed physical activity  levels , between asthmatic children and non-asthmatic controls . METHODS From a r and om community sample of 794 children aged 8 - 9 years , in a case-control design , 104 children with ever doctor 's diagnosis of asthma and 99 non-asthmatic controls were recruited and had assessment of physical activity with biaxial accelerometers for 7 days . RESULTS Children with active ( also reporting at least one episode of wheezing in the last 12 months ) and inactive ( no wheezing in past 12 months ) asthma appeared to have similar physical activity and sedentary activity levels compared to non-asthmatic children . However , girls with active asthma had significantly lower moderate-to-vigorous physical activity ( MVPA ) levels than their peers with adjusted geometric mean ratio of 0.59 ( 95 % CI : 0.369 , 0.929 , P-value = 0.024 ) . No difference in physical and sedentary activity levels was observed between asthmatic and non-asthmatic boys . The difference between genders in the comparison of MVPA levels in asthmatics and controls was statistically significant ( P-value of likelihood ratio test [ LRT ] for effect modification by gender = 0.034 ) . CONCLUSIONS Unlike boys , girls with active asthma appear to be less active than their healthy peers , and this gender difference might explain the inconsistent evidence from previous reports on physical activity levels in asthmatic children . Further studies are needed to confirm the gender interaction in the childhood asthma-physical activity relation and the implication s on current guidelines for physical exercise prescriptions in asthmatic children
MVPA in children/adolescents with chronic disease appear to be well below guideline recommendations , although comparable with activity levels of their healthy peers except for children with malignancies .
CONTEXT Moderate-to-vigorous physical activity ( MVPA ) and sedentary time ( ST )  are important for child and adolescent health .
OBJECTIVE To examine habitual levels of accelerometer measured MVPA and ST  in children and adolescents with chronic disease , and how these levels compare with healthy peers .