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Effect of a long bout versus short bouts of walking on weight loss during a weight loss diet: a randomized trial

Madjd, Ameneh; Taylor, Moria A.; Delavari, Alireza; Malekzadeh, Reza; Macdonald, Ian A.; Farshchi, Hamid R.


Ameneh Madjd

Alireza Delavari

Reza Malekzadeh

Ian A. Macdonald

Hamid R. Farshchi


Objective: To evaluate the effect of different daily physical activity (PA) frequencies while maintaining the same daily volume of PA on weight loss, carbohydrate and lipid metabolism, in women with overweight/obesity throughout a 24- week intervention.
Methods: 65 women [BMI = 27- 35 kg/m²; age= 18-40 y] who had a sedentary lifestyle were randomly allocated to include either a longer-bout of PA (LBP), 50 min/d moderate-intensity PA, or two shorter-bouts of PA (SBP), two 25 min/d moderate intensity PA, 6 d/week during their weight loss plan. Anthropometric and blood measurements were taken at baseline and 24 weeks.
Results: Compared with the LBP group, the SBP group had a greater decrease in weight (SBP: -8.08 ± 2.20 kg; LBP: -6.39 ± 2.28 kg; P = 0.019), BMI (SBP: -3.11 ± 0.87 kg/m²; LBP: -2.47 ± 0.86 kg/m², P=0.027) and waist circumference (SBP: -8.78 ± 2.62 cm; LBP: -5.76 ± 2.03 cm; P = 0.026). No significant differences were seen in carbohydrate and lipid metabolism characteristics after the 24 weeks.
Conclusion: PA undertaken in 2 shorter-bouts per day could be more effective for weight loss than when undertaken in a daily long-bout in adult women on a 24 wk weight loss program.


Madjd, A., Taylor, M. A., Delavari, A., Malekzadeh, R., Macdonald, I. A., & Farshchi, H. R. (2019). Effect of a long bout versus short bouts of walking on weight loss during a weight loss diet: a randomized trial. Obesity, 27(4), 551-558.

Journal Article Type Article
Acceptance Date Jan 9, 2019
Online Publication Date Feb 9, 2019
Publication Date Feb 9, 2019
Deposit Date Jan 21, 2019
Publicly Available Date Feb 9, 2019
Journal Obesity
Print ISSN 1930-7381
Electronic ISSN 1930-739X
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 27
Issue 4
Pages 551-558
Keywords Nutrition and Dietetics; Medicine (miscellaneous); Endocrinology, Diabetes and Metabolism; Endocrinology
Public URL
Publisher URL
Additional Information This is the peer reviewed version of the article, which has been published in final form at . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.