A Workplace Physical Activity Intervention and a Smartphone App for Overweight and Obese Sedentary Women.

Background: The sedentary aspects of many U.S. occupations and the amount of time American workers spend in the workplace make it an ideal location to implement health promotion programs.

Methods: This study assessed the effectiveness of a free smartphone app with a goal-setting feature to increase physical activity (PA) and impact anthropometric, body mass (BM), and body composition (BC) changes among overweight and obese women within a community health workforce. Eighteen overweight and obese (body mass index [BMI] = 32.18 ± 4.48 kg/m²), adult (50.73 ± 8.76 years), female volunteers, tracked daily steps with a free smartphone app (Stridekick^TM) over an 8-week period. Pre- and post-program body composition (BC) measurements included: relative (%) body fat (BF), fat mass (FM), fat-free mass (FFM), and lean mass (LM), using dual X-ray absorptiometry (DEXA scan), and five anthropometric measurements (biceps, waist, abdomen, hips, and thigh).

Findings: Pre- to post-program average daily steps resulted in significant anthropometric changes for biceps, hips, and thigh measures, with encouraging changes in FFM, LM, and relative (%) BF. The goal-setting feature of the app did not result in significant differences between the experimental and control groups. No differences were noted in FM, BMI, waist, and abdomen or step goals compared with steps completed.

Conclusions: An occupational PA health promotion intervention program that tracked daily steps through the Stridekick^TM smartphone app resulted in anthropometric, BM, and BC changes.

Application to practice: The workplace is an ideal location to affect change in health behaviors via a free smartphone app to increase PA and improve health.