“…Seventeen studies assessed activity levels based on movement and classified it as MVPA, vigorous PA (VPA), PA, sedentary time, or something similar. 4,25,28,29,31,32,[36][37][38][39]43,44,46,[48][49][50][51] Seven studies used a specific score obtained from a questionnaire to define PA, 27,[33][34][35]40,41,47 five used steps/day, 26,38,42,43,45 two used resting energy expenditure (REE) or total energy expenditure (TEE), 29,31 and two used counts. These studies compared a total of 1535 children and adolescents with asthma versus 19130 controls.…”