The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial
Background: The time of day that people exercise could have an influence on the efficacy of exercise for weight loss, via differences in adherence and/or physiological adaptations. However, there is currently no evidence to support an optimal time of day for exercise to maximise efficacy. Purpose: T...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-06-01
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| Series: | Contemporary Clinical Trials Communications |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2451865418301625 |
| _version_ | 1828418029415825408 |
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| author | Paige G. Brooker Sjaan R. Gomersall Neil A. King Michael D. Leveritt |
| author_facet | Paige G. Brooker Sjaan R. Gomersall Neil A. King Michael D. Leveritt |
| author_sort | Paige G. Brooker |
| collection | DOAJ |
| description | Background: The time of day that people exercise could have an influence on the efficacy of exercise for weight loss, via differences in adherence and/or physiological adaptations. However, there is currently no evidence to support an optimal time of day for exercise to maximise efficacy. Purpose: To examine the feasibility and acceptability of prescribed morning and evening exercise. Methods: Twenty inactive, overweight adults aged 18–60 years were recruited for a 12-week intervention and randomized to one of three groups using a 2:2:1 random allocation ratio: i) morning exercise (AM; n = 9); ii) evening exercise (PM; n = 7); or iii) waitlist control (CON; n = 4). Exercise groups were prescribed self-paced walking or running on a treadmill to achieve a weekly total of 250 min. Feasibility and acceptability data were collected, and physiological and behavioural outcomes associated with energy balance were measured at baseline, mid- and post-intervention. Results: Attrition was low (n = 2 dropped out), with high measurement completion rates (>80%). The intervention groups had high adherence rates to exercise sessions (94% and 87% for the AM and PM groups, respectively). No adverse events resulting from the intervention were reported. Both intervention groups displayed improvements to their cardiometabolic risk profile; cardiorespiratory fitness improved by 5.2 ± 4.7, and 4.6 ± 4.5 mL kg−1.min−1 and body fat percentage reduced by 1.2 ± 1.4, and −0.6 ± 1.2% for AM and PM groups, respectively. Conclusion: This feasibility study provides evidence that morning and evening exercise interventions are feasible, and also provides justification for a large-scale randomized controlled trial. Trial registration: This trial is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12616000457448p, 7/4/2016). Keywords: Exercise, Time of day, Feasibility, Randomized controlled trial, Energy balance |
| first_indexed | 2024-12-10T14:30:05Z |
| format | Article |
| id | doaj.art-1af9380cffc842d59102679139063ddf |
| institution | Directory Open Access Journal |
| issn | 2451-8654 |
| language | English |
| last_indexed | 2024-12-10T14:30:05Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Contemporary Clinical Trials Communications |
| spelling | doaj.art-1af9380cffc842d59102679139063ddf2022-12-22T01:44:57ZengElsevierContemporary Clinical Trials Communications2451-86542019-06-0114The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trialPaige G. Brooker0Sjaan R. Gomersall1Neil A. King2Michael D. Leveritt3School of Human Movement and Nutrition Sciences, The University of Queensland, St. Lucia, Queensland, Australia; Corresponding author.School of Human Movement and Nutrition Sciences, The University of Queensland, St. Lucia, Queensland, Australia; School of Health & Rehabilitation Sciences, The University of Queensland, St. Lucia, Queensland, AustraliaSchool of Exercise & Nutrition Sciences, Queensland University of Technology, Kelvin Grove, Queensland, AustraliaSchool of Human Movement and Nutrition Sciences, The University of Queensland, St. Lucia, Queensland, AustraliaBackground: The time of day that people exercise could have an influence on the efficacy of exercise for weight loss, via differences in adherence and/or physiological adaptations. However, there is currently no evidence to support an optimal time of day for exercise to maximise efficacy. Purpose: To examine the feasibility and acceptability of prescribed morning and evening exercise. Methods: Twenty inactive, overweight adults aged 18–60 years were recruited for a 12-week intervention and randomized to one of three groups using a 2:2:1 random allocation ratio: i) morning exercise (AM; n = 9); ii) evening exercise (PM; n = 7); or iii) waitlist control (CON; n = 4). Exercise groups were prescribed self-paced walking or running on a treadmill to achieve a weekly total of 250 min. Feasibility and acceptability data were collected, and physiological and behavioural outcomes associated with energy balance were measured at baseline, mid- and post-intervention. Results: Attrition was low (n = 2 dropped out), with high measurement completion rates (>80%). The intervention groups had high adherence rates to exercise sessions (94% and 87% for the AM and PM groups, respectively). No adverse events resulting from the intervention were reported. Both intervention groups displayed improvements to their cardiometabolic risk profile; cardiorespiratory fitness improved by 5.2 ± 4.7, and 4.6 ± 4.5 mL kg−1.min−1 and body fat percentage reduced by 1.2 ± 1.4, and −0.6 ± 1.2% for AM and PM groups, respectively. Conclusion: This feasibility study provides evidence that morning and evening exercise interventions are feasible, and also provides justification for a large-scale randomized controlled trial. Trial registration: This trial is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12616000457448p, 7/4/2016). Keywords: Exercise, Time of day, Feasibility, Randomized controlled trial, Energy balancehttp://www.sciencedirect.com/science/article/pii/S2451865418301625 |
| spellingShingle | Paige G. Brooker Sjaan R. Gomersall Neil A. King Michael D. Leveritt The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial Contemporary Clinical Trials Communications |
| title | The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial |
| title_full | The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial |
| title_fullStr | The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial |
| title_full_unstemmed | The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial |
| title_short | The feasibility and acceptability of morning versus evening exercise for overweight and obese adults: A randomized controlled trial |
| title_sort | feasibility and acceptability of morning versus evening exercise for overweight and obese adults a randomized controlled trial |
| url | http://www.sciencedirect.com/science/article/pii/S2451865418301625 |
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