• Daniel Wilson, Matthew W Driller, Ben Johnston, and Nicholas D Gill.
• Te Huataki Waiora School of Health, The University of Waikato, Hamilton, New Zealand; Faculty of Health, Education and Environment, Toi Ohomai Institute of Technology, Tauranga, New Zealand. Electronic address: daniel.wilson@toiohomai.ac.nz.
• Am J Prev Med. 2023 May 1; 64 (5): 666676666-676.

IntroductionThere is a need for enhanced preventive health care among airline pilots to mitigate the prevalence of cardiometabolic health risk factors.Study DesignA randomized, waitlist-controlled trial was utilized to evaluate the effectiveness of a smartphone-based app intervention for improving health behaviors and cardiometabolic health parameters.Setting/ParticipantsA total of 186 airline pilots (aged 43.2±9.1 years; male, 64%) were recruited and participated in the trial during 2022.InterventionThis intervention was a personalized, 16-week smartphone-based app multicomponent physical activity, healthy eating, and sleep hygiene intervention.Main Outcome MeasuresOutcome measures of objective health (Cooper's 12-minute exercise test, resting heart rate, push ups, plank isometric hold, body mass), subjective health (self-rated health, perceived psychological stress and fatigue), and health behaviors (weekly physical activity, sleep quality and duration, fruit and vegetable intake) were collected at baseline and after intervention. The waitlist control completed the same measures.ResultsSignificant interactions for time Χ group from baseline to 16 weeks were found for all outcome measures (p<0.001). Significant between-group differences for positive health changes in favor of the intervention group were found after intervention for all outcome measures (p<0.05, d=0.4-1.0) except for self-rated health, body mass, and Pittsburgh Sleep Quality Index score.ConclusionsStudy findings show that an app-based health behavior intervention can elicit positive cardiometabolic health changes among airline pilots over 16 weeks, associated with trivial to large effect sizes.Trial RegistrationThe trial protocol was prospectively registered at The Australian New Zealand Clinical Trials Registry (ACTRN12622000288729).Copyright © 2022 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

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