Seth A Creasy1, Wei Lang2, Deborah F Tate3, Kelliann K Davis4, John M Jakicic4. 1. Division of Endocrinology, Metabolism, and Diabetes, Anschutz Medical Campus, University of Colorado Denver, Denver, Colorado, USA. 2. Department of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA. 3. Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 4. Physical Activity and Weight Management Research Center, Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Abstract
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.
RCT Entities:
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.
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