To investigate longitudinally whether asthma or wheeze at age 4 years of age was associated with lower physical activity levels at the age of 6 years.
In the study, the researchers included 391 children from the Australian HealthNuts cohort who had follow-up at the ages of 4 and 6 years, agreed to wear an accelerometer, and returned valid data. At the age of 4 years, 8.7% had current asthma, and 14.6% had ever wheezed or had asthma.
Asthma and wheeze data were collected by using a standardized, validated questionnaire at the ages of 4 and 6 years. Physical activity was measured through accelerometry after the age 6 visit. Participants wore an accelerometer watch on the wrist of their nondominant hand 24 hours per day for 8 consecutive days, even while sleeping, swimming, and bathing. Associations were investigated by using linear adjusted regression models. The primary outcome was daily minutes spent...