Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers?
Abstract Background Physical behaviours over a 24-hour period are important for health. However, we do not know if interventions using a “24-hour time-use approach” are more effective in improving 24-hour time-use behaviours than the traditional “reduce sitting at work approach”. Thus, the aim of ou...
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2025-08-01
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| Online Access: | https://doi.org/10.1186/s12889-025-23957-w |
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| author | Luiz Augusto Brusaca Nidhi Gupta David M. Hallman Andreas Holtermann Dechristian França Barbieri Ana Beatriz Oliveira |
| author_facet | Luiz Augusto Brusaca Nidhi Gupta David M. Hallman Andreas Holtermann Dechristian França Barbieri Ana Beatriz Oliveira |
| author_sort | Luiz Augusto Brusaca |
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| description | Abstract Background Physical behaviours over a 24-hour period are important for health. However, we do not know if interventions using a “24-hour time-use approach” are more effective in improving 24-hour time-use behaviours than the traditional “reduce sitting at work approach”. Thus, the aim of our non-randomised controlled study was to investigate this in a high-risk group of overweight and obese Brazilian office workers. Methods Forty-five office workers were allocated to three non-randomised controlled groups; “Reduce sitting at work” (n = 15) receiving an intervention focused on reducing sitting time at work; the “24-hour” (n = 15) receiving an intervention aiming to reduce sitting at work as well as promoting behavioural changes around 24 hours (e.g., sedentary lifestyle, benefits of physical activity, and healthy sleep hygiene); or “control” (n = 15) without any intervention. Daily time spent in physical behaviours (sitting, standing, active, and in bed) was monitored for 7 days using a thigh-worn accelerometer at baseline, and at the 3- and 6-month follow-ups. Intervention effects were analysed using linear mixed models, adjusted for baseline values, age, and sex, with a compositional data analysis approach. Results At baseline, the demographic characteristics and 24-hour physical behaviours of the groups were similar. No significant intervention effect was observed between the intervention groups for the overall 24-hour composition, except for time-in-bed, which decreased for Reduce sitting at work compared to 24-hour group from baseline to the 6-month follow-up (p-value = 0.02). Compared to the control group, both intervention approaches resulted in less time spent sitting, more time standing, and less time-in-bed from baseline to the 3-month follow-up, but these effects were not sustained at the 6-month follow-up. Notably, domain-specific (i.e., work and leisure) analysis revealed that most changes in the overall 24-hour composition occurred due to changes in behaviours during working hours. Conclusions Among Brazilian overweight and obese office workers, the “24-hour time-use approach” may not lead to better improvements in overall 24-hour composition of physical behaviours compared to the traditional “reduce sitting at work approach”. |
| format | Article |
| id | doaj-art-00809710a93d4f9ba952ca04412466b6 |
| institution | Kabale University |
| issn | 1471-2458 |
| language | English |
| publishDate | 2025-08-01 |
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| spelling | doaj-art-00809710a93d4f9ba952ca04412466b62025-08-20T03:46:16ZengBMCBMC Public Health1471-24582025-08-0125111510.1186/s12889-025-23957-wDoes the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers?Luiz Augusto Brusaca0Nidhi Gupta1David M. Hallman2Andreas Holtermann3Dechristian França Barbieri4Ana Beatriz Oliveira5Laboratory of Clinical and Occupational Kinesiology, Department of Physical Therapy, Federal University of São CarlosNational Research Centre for the Working EnvironmentCentre for Musculoskeletal Research, Department of Occupational Health, Psychology and Sports Sciences, University of GävleNational Research Centre for the Working EnvironmentDepartment of Industrial Engineering, Clemson UniversityLaboratory of Clinical and Occupational Kinesiology, Department of Physical Therapy, Federal University of São CarlosAbstract Background Physical behaviours over a 24-hour period are important for health. However, we do not know if interventions using a “24-hour time-use approach” are more effective in improving 24-hour time-use behaviours than the traditional “reduce sitting at work approach”. Thus, the aim of our non-randomised controlled study was to investigate this in a high-risk group of overweight and obese Brazilian office workers. Methods Forty-five office workers were allocated to three non-randomised controlled groups; “Reduce sitting at work” (n = 15) receiving an intervention focused on reducing sitting time at work; the “24-hour” (n = 15) receiving an intervention aiming to reduce sitting at work as well as promoting behavioural changes around 24 hours (e.g., sedentary lifestyle, benefits of physical activity, and healthy sleep hygiene); or “control” (n = 15) without any intervention. Daily time spent in physical behaviours (sitting, standing, active, and in bed) was monitored for 7 days using a thigh-worn accelerometer at baseline, and at the 3- and 6-month follow-ups. Intervention effects were analysed using linear mixed models, adjusted for baseline values, age, and sex, with a compositional data analysis approach. Results At baseline, the demographic characteristics and 24-hour physical behaviours of the groups were similar. No significant intervention effect was observed between the intervention groups for the overall 24-hour composition, except for time-in-bed, which decreased for Reduce sitting at work compared to 24-hour group from baseline to the 6-month follow-up (p-value = 0.02). Compared to the control group, both intervention approaches resulted in less time spent sitting, more time standing, and less time-in-bed from baseline to the 3-month follow-up, but these effects were not sustained at the 6-month follow-up. Notably, domain-specific (i.e., work and leisure) analysis revealed that most changes in the overall 24-hour composition occurred due to changes in behaviours during working hours. Conclusions Among Brazilian overweight and obese office workers, the “24-hour time-use approach” may not lead to better improvements in overall 24-hour composition of physical behaviours compared to the traditional “reduce sitting at work approach”.https://doi.org/10.1186/s12889-025-23957-wOccupational healthPublic healthObesityAccelerometry24-hour physical behaviourCompositional data analysis |
| spellingShingle | Luiz Augusto Brusaca Nidhi Gupta David M. Hallman Andreas Holtermann Dechristian França Barbieri Ana Beatriz Oliveira Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? BMC Public Health Occupational health Public health Obesity Accelerometry 24-hour physical behaviour Compositional data analysis |
| title | Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? |
| title_full | Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? |
| title_fullStr | Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? |
| title_full_unstemmed | Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? |
| title_short | Does the intervention approach matter for improving 24-hour physical behaviours among overweight and obese Brazilian office workers? |
| title_sort | does the intervention approach matter for improving 24 hour physical behaviours among overweight and obese brazilian office workers |
| topic | Occupational health Public health Obesity Accelerometry 24-hour physical behaviour Compositional data analysis |
| url | https://doi.org/10.1186/s12889-025-23957-w |
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