This study uses a randomized comparison-group pre-post-test design. Overall objectives of LUAM are to: (1) to increase the percentage of youth who meet 60 minutes of daily MVPA per week; (2) to improve the quality of sleep patterns (i.e., sleep efficiency and duration); and (3) to reduce percent body fat (%BF). It is hypothesized that compared to the control group (CG) participants, the experimental group (EG) participants will exhibit: (a) greater increase in percentage of children who meet 60 minutes of daily MVPA per week; (b) greater increase of sleep efficiency and duration; and (c) greater decrease in sleep latency and (d) greater decrease in %BF.