Abstract
Physical activity (PA) was assessed via accelerometers in 48 children who participated in a pilot obesity prevention intervention. Differences between pre- and postmean minutes of sedentary time and PA including light (LPA), moderate (MPA), vigorous (VPA), and moderate-to-vigorous (MVPA) were compared by paired t test (P <= 0.05). No significant differences were found (respective mean minutes +/- standard deviation; P value): sedentary time (522 +/- 46, 525 +/- 49; P = 0.69), LPA (263 +/- 32, 254 +/- 37; P = 0.17), MPA (37 +/- 12, 38 +/- 12; P = 0.41), VPA (18 +/- 11, 23 +/- 14; P = 0.17), and MVPA (55 +/- 19, 61 +/- 23; P = 0.15). These findings prompted PA curriculum revisions, although PA did not significantly increase, 37% at preintervention and 47% at postintervention met PA guidelines.