Project description:OBJECTIVE:The aim of this study was to examine the association between the amount, intensity, and pattern of steps·day-1 with weight loss. METHODS:Participants (N?=?260; age?=?42.8?±?8.9 y; BMI?=?32.8?±?3.5 kg/m2 ) completed an 18-month weight-loss intervention that included a calorie-restricted diet and prescribed physical activity. Participants were categorized by 18-month weight loss as weight gain (GAIN), weight loss of 0% to <?5% (WL?<?5%), 5% to <?10% (WL?<?10%), or???10% (WL???10%). Steps·day-1 were measured at 0, 6, 12, and 18 months and defined as total steps·day-1 , total steps·day-1 of moderate-to-vigorous physical activity (MVPA) (?3 metabolic equivalents) in bouts of ??10 minutes (BOUT-MVPA), MVPA in bouts of <?10 minutes (NON-BOUT-MVPA), or non-MVPA steps·day-1 (NON-MVPA). RESULTS:There was a weight-loss category by time interaction (P?<?0.0001) for total and BOUT-MVPA steps·day-1 . The total steps·day-1 at 18 months were WL???10%?=?9,822 (95% CI: 9,073-10,571), WL?<?10%?=?8,612 (7,613-9,610), WL?<?5%?=?7,802 (6,782-8,822), and GAIN?=?7,801 (6,549-9,053). BOUT-MVPA steps·day-1 at 18 months were WL???10%?=?3,482 (2,982-3,981), WL?<?10%?=?1,949 (1,269-2,629), WL?<?5%?=?1,735 (1,045-2,426), and GAIN?=?1,075 (210-1,941). Participants were also categorized based on achieving???10% weight loss at either 6 or 18 months, and a similar pattern was observed. CONCLUSIONS:These findings show that 10,000 steps·day-1 , with approximately 3,500 steps·day-1 performed as BOUT-MVPA, are associated with enhanced weight loss in a behavioral intervention.
2018-01-01 | S-EPMC5970037 | BioStudies