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A New Health Promotion Model for Lone Workers: Results of the Safety & Health Involvement For Truckers (SHIFT) Pilot Study

Olson, Ryan PhD; Anger, W Kent PhD; Elliot, Diane L. MD; Wipfli, Bradley PhD; Gray, Mary BA

Journal of Occupational and Environmental Medicine: November 2009 - Volume 51 - Issue 11 - p 1233-1246
doi: 10.1097/JOM.0b013e3181c1dc7a
Original Articles

Objective: This study was designed to evaluate the effectiveness of a new health promotion model for lone workers.

Methods: A single group pre- or posttest design was used to evaluate intervention effectiveness for reducing body weight and increasing healthful and safe behaviors. Truck drivers (n = 29) from four companies participated in a 6-month intervention involving a weight loss and safe driving competition, computer-based training, and motivational interviewing.

Results: Objectively measured body weight reduced by 7.8 lbs (ΔSD = 11.5, Δd = 0.68, P = 0.005), and survey measures showed significant reductions in dietary fat and sugar consumption. An objective measure of safe driving also showed significant improvement, and increases in exercise motivational stage and walking fitness approached significance.

Conclusions: Results suggest that the new intervention model is substantially more engaging and effective with truck drivers than previous education-based tactics.

From the Center for Research on Occupational & Environmental Toxicology (Dr Olson, Dr Anger, Dr Wipfli, Ms Gray) and Division of Health Promotion and Sports Medicine (Dr Elliot), Oregon Health & Science University and Department of Psychology, Portland State University (Dr Olson, Ms Gray), Portland, Ore.

CME Available for this Article at

OHSU and Dr Anger have a significant financial interest in Northwest Education Training and Assessment, LLC, a company that may have a commercial interest in the results of this research and technology. This potential conflict has been reviewed and managed by OHSU and the lntegrity Program Oversight Council.

The JOEM Editorial Board and planners have no financial interest related to this research.

Address correspondence to: Ryan Olson, PhD, CROET, OHSU, 3181 SE Sam Jackson Park Road, L606, Portland, OR 97239; E-mail:

©2009The American College of Occupational and Environmental Medicine