Using Novel Technology within a School-Based Setting to Increase Physical Activity: A Pilot Study in School-Age Children from a Low-Income, Urban Community

Table 3

Objective estimates of average daily minutes of moderate to vigorous activity (MVPA) and daily step count as measured by a Sensewear Armband Mimi (SWA) in a sample of middle-school age children from a low-resource community.

	Baseline^2		Follow-up^2		Difference^3
	MVPA^1	Steps	MVPA^1	Steps	MVPA^1	Steps
Control	80.5 + 34	11,849 + 3420	99.9 + 22.3	9,745 + 4,422	19.4 + 49.2	−2110.5 + 1,453.3
Fitbit only	126.0 + 58.4	11,494 + 3,529	96.2 + 68.9	10,072 + 4,580	−29.8 + 67.8	−1,421.2 + 3,501.2
Fitbit + intervention	80.8 + 34.9	9,713 + 2,894	71.2 + 31.8	8,045 + 2,571	−9.6 + 33.6	−1,667.7 + 2,055.9
value	.48	.29	.72	.48	.20	.96

MVPA (METS ≥ 4.0) recorded via the Sensewear Armband Mini (SWA). Group differences at baseline and follow-up were determined using a mixed model that controlled for clustering by classroom as well as group differences in weight status and sex. Group differences in changes from baseline to follow-up were determined using a mixed model that controlled for clustering by classroom as well as group differences in baseline values, weight status, and sex.