Minute-by-minute stepping rate of daily physical activity in normal and overweight/obese adults

Makoto Ayabe; Junichiro Aoki; Hideaki Kumahara; Eiichi Yoshimura; Sakiko Matono; Takuro Tobina; Akira Kiyonaga; Keizo Anzai; Hiroaki Tanaka

doi:10.1016/j.orcp.2010.12.009

Minute-by-minute stepping rate of daily physical activity in normal and overweight/obese adults

Obes Res Clin Pract. 2011 Apr-Jun;5(2):e79-e156. doi: 10.1016/j.orcp.2010.12.009.

Authors

Makoto Ayabe¹, Junichiro Aoki², Hideaki Kumahara³, Eiichi Yoshimura⁴, Sakiko Matono⁵, Takuro Tobina⁵, Akira Kiyonaga³, Keizo Anzai⁴, Hiroaki Tanaka³

Affiliations

¹ School of Health and Sport Science, Juntendo University, 1-1 Hiragagakuendai, Inba, Chiba 2701695, Japan. Electronic address:ayabemakoto@mac.com.
² School of Health and Sport Science, Juntendo University, 1-1 Hiragagakuendai, Inba, Chiba 2701695, Japan.
³ Faculty of Health and Sports Science, Fukuoka University, 8-19-1, Nanakuma, Johnan-ku, Fukuoka 8140180, Japan.
⁴ Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Johnan-ku, Fukuoka 8140180, Japan.
⁵ Graduate School of Health and Sports Science, 8-19-1 Nanakuma, Johnan-ku, Fukuoka 8140180, Japan.

PMID: 24331067
DOI: 10.1016/j.orcp.2010.12.009

Abstract

The relationship between minute-by-minute stepping rate under free-living and obesity remains unclear. The purpose of the present investigation was to compare the levels of physical activity (PA) based on the minute-by-minute stepping rate under free-living conditions between normal weight (NW) and overweight and obese (OV) individuals. A total 40 volunteers participated in the present investigation. These participants were divided into NW or OV according to the body mass index (<25 kg m(-2) or 25 kg m(-2)). All participants wore a pedometer with a uni-axial accelerometer (Lifecorder-EX 4sec, Kenz, Japan) for 7 days continuously. The Lifecorder determined the number of steps and time spent in PA at <100, 100-129, 130 steps min(-1) according to the minute-by-minute stepping rate. The OV group took a significantly fewer number of steps per day in comparison to that in the NW group (p < 0.05). The average daily stepping rate was significantly lower in the OV group in comparison to that in the NW group (p = 0.01). Furthermore, the OV group spent a significantly shorter time in PA at a 100 steps min(-1) of the stepping rate compared with that in the NW group (p < 0.05). These results indicate that obese individuals spent significantly shorter time in PA at 100 steps min(-1) of stepping rate in comparison to the NW individuals.: