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Impact of Booster Breaks and Computer Prompts on Physical Activity and Sedentary Behavior Among Desk-Based Workers: A Cluster-Randomized Controlled Trial


A total of 196 worksite employees were assessed for eligibility, 185 were randomized to 1 of 3 conditions (ie, Booster Breaks, computer prompts, or usual breaks). Eleven of 196 participants were excluded because they were missing information on department or allocation arm, 10 of 185 participants were lost to follow-up. Of the 69 participants assigned to the Booster Break arm, 41 (59.4%) completed the study. Of the 59 assigned to the computer-prompt arm, 34 (57.6%) completed the study. Of the 47 assigned to the usual-break (control) arm, 26 (55.3%) completed the study.

Figure. Stages of the Booster Break study for intent-to-treat analyses (all participants); 100% of participants were analyzed using intent-to-treat.

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Page last reviewed: November 17, 2016