Physical activity level is an important tool to identify individuals predisposed to developing chronic diseases, which represent a major concern worldwide.
To identify correlates of daily step counts measured using pedometers, as well as analyze the associations between health outcomes and 3 different amounts of daily physical activity.
The sample comprised 278 participants (126 men and 153 women) with a mean age of 46.51 ± 9.02 years. Physical activity was assessed using pedometers for 7 consecutive days, and 3 amounts of daily physical activity were considered: ≥10,000 steps/day, ≥7500 steps/day, and <5000 steps/day. Sleep quality was assessed through a questionnaire, and dual-energy x-ray absorptiometry was used to measure body fat. Sociodemographic and anthropometric data were also collected.
The percentages of adults achieving at least 10,000 and 7500 steps/day on a minimum of 5 days of the evaluated week were 12.9% and 30.9%, respectively. Adults who reached ≥7500 steps/day had a lower likelihood of being obese (odds ratio [OR] = 0.38, 95% confidence interval [CI], 0.17–0.85) and reporting worse sleep quality (OR = 0.58, 95% CI, 0.34–0.99). Adults who reached <5000 steps/day had a higher likelihood of reporting worse sleep quality (OR = 2.11, 95% CI, 1.17–3.82).
Physical activity in adulthood, as measured by pedometer, constituted a behavior related to lower adiposity and better sleep quality.
Mantovani, Codogno, and Fernandes are with the Postgraduate Program in Sciences of Motricity, Institute of Bioscience, São Paulo State University (UNESP), Rio Claro, Brazil; and the Laboratory of Investigation in Exercise (LIVE), Dept of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil. Lima is also with the Laboratory of Investigation in Exercise (LIVE), Dept of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil. Duncan is with the Centre for Physical Activity and Nutrition, Auckland University of Technology, Auckland, New Zealand.