Objective: Problems with attention and stress are common in children and predict academic difficulties and other behavioral and emotional problems. Mind-body interventions such as yoga and meditation improve attention and reduce stress. In this study, we examined the impact of Hatha yoga on attention and stress in ninth graders. Design: A total of 174 ninth graders from a Texas high school were enrolled in the study. Teachers assigned students to a yoga group (YG) or control group (CG) based on their class schedule. The YG participated in 25-min Hatha yoga classes twice weekly over 12 weeks (n = 123). The CG included 51 students. Student self-reports on measures of inattention and hyperactivity (the strengths and weaknesses of ADHD [attention-deficit/hyperactivity disorder] symptoms and normal behavior rating scale for ADHD) and stress (perceived stress scale) were obtained at baseline and at 12 weeks. Results: There were no significant differences in baseline levels of inattention (p = 0.86), hyperactivity (p = 0.25), and perceived stress (p = 0.28) between the YG and CG. Regarding inattention scores, there was a significant interaction of group and time (b =-1.09, standard error [SE] = 0.30, p < 0.001). Pairwise t-tests showed a significant reduction in inattention for the YG (d = 0.27) but a significant increase in inattention for the CG. Regarding hyperactivity, there was no significant interaction of group and time (b =-0.43, SE = 0.26, p = 0.1). Pairwise t-tests demonstrated a significant reduction in hyperactivity for the YG (d = 0.22), but not the CG. The interaction of group and time was not significant in predicting the slope of change in perceived distress (b =-0.93, SE = 1.19, p = 0.43). Pairwise t-tests did not show a significant reduction in perceived distress for either group. Conclusion: These findings suggest that Hatha yoga may improve attention and hyperactivity in high school students.

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