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Leah E. Robinson, Kara K. Palmer and Sean K. Meehan

Background:

This study examined the effects of three different treatment doses of a motor skill intervention (the Children’s Health Activity Motor Program [CHAMP]) on changes in preschoolers’ motor performance.

Methods:

Onehundred and nine children were divided into one of four groups: control and three CHAMP dosage groups: T1, 660 min; T2, 720 min; or T3, 900 min. Motor performance was assessed before and after the intervention using the Test of Gross Motor Development, 2nd Edition (TGMD-2). We used a 2 (time) × 4 (treatment) mixed-measures ANOVA to determine interaction and main effects. Significant interactions were decomposed using separate one-way between groups ANOVAs at each time point followed by Tukey’s post hoc tests.

Results:

Results revealed a significant time × treatment interaction (F 3, 100 = 16.79; p < .001). There were no differences across treatment groups before the intervention (F 3, 100 = .075, p < .90), but after the intervention the control group had significantly lower TMGD-2 scores compared with all three CHAMP intervention groups (F 3, 100 = 9.92, p < .001, all post hoc tests, p < .001). Posttreatment differences can be attributed to greater improvements in motor performance following the CHAMP intervention regardless of specific dosage.

Conclusions:

Motor performance scores for all children who completed CHAMP significantly improved.