Empowering sedentary adults to reduce sedentary behavior and increase physical activity levels and energy expenditure: a pilot study

• Published in: International journal of environmental research and public health 2015-01, Vol.12 (1), p.414-427
• Main Authors: Barwais, Faisal A, Cuddihy, Thomas F
• Format: Article
• Language: English
• Subjects: Adult; Adults; Early intervention; Energy Metabolism; Female; Health behavior; Humans; Male; Monitoring systems; Monitoring, Physiologic - instrumentation; Monitoring, Physiologic - methods; Motor Activity; Physical fitness; Pilot Projects; Power, Psychological; Queensland; Risk factors; Sedentary Behavior; Self Report; Young Adult
• ISSN: 1660-4601; 1661-7827; 1660-4601
• DOI: 10.3390/ijerph120100414

The purpose of this study was to assess the effectiveness of a 4-week intervention in which an online personal activity monitor (Gruve-Technologies™) was used to reduce sedentary behavior among sedentary adults. Eighteen, sedentary adult volunteers (12 men, six women, mean age 29 ± 4.0 years) were recruited to participate in the study. Time spent in sedentary activities and light-, moderate-, and vigorous-intensity physical activity and energy expenditure were assessed during waking hours using the monitor and the 7-day SLIPA Log at both baseline and post-intervention. A significant decrease of 33% (3.1 h/day; p < 0.001) was found between the time spent in sedentary activities measured at baseline (9.4 ± 1.1 h/day) and at the end of the 4-week intervention (6.3 ± 0.8 h/day). Consequent to the changes in sedentary time, significant increases were found in the amount of time spent in light- (45% (2.6 h/day), p < 0.001), moderate- (33% (1 h/day) p < 0.001), vigorous-intensity physical activity (39% (0.16 h/day), p < 0.001), and energy expenditure (47% (216.7 kcal/day), p < 0.001). This monitor contributes to a meaningful reduction in time spent in sedentary activities and has a large effect on energy expenditure and physical activity patterns.