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International Archives of Occupational and Environmental Health

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01-04-2014 | Original Article

Leisure-time physical activity does not fully explain the higher body mass index in irregular-shift workers

Authors: Elaine Cristina Marqueze, Melissa Araújo Ulhôa, Claudia Roberta Castro Moreno

Published in: International Archives of Occupational and Environmental Health | Issue 3/2014

Abstract

Purpose

To elucidate the influence of leisure-time physical activity on body mass index (BMI), appetite-related hormones, and sleep when working irregular shifts.

Methods

A cross-sectional study was undertaken of 57 male truck drivers, 31 irregular-shift workers and 26 day-shift workers. Participants completed the International Physical Activity Questionnaire and were assessed for BMI. Subjects also provided a fasting blood sample for analysis of appetite-related hormones and wore an actigraphy device for seven consecutive days.

Results

Although leisure-time physical activity (LTPA) was generally low (<150 min/week) in both groups, the irregular-shift workers were more physically active than day-shift workers (99 ± 166 vs. 23 ± 76 min/week, p < 0.01). In spite of this, mean BMI of irregular-shift workers was 2 kg/m² greater than day-shift workers (28.4 ± 3.8 vs. 26.4 ± 3.6 kg/m², p = 0.04). Mean leptin concentration was 61 % higher in irregular-shift workers (5,205 ± 4,181 vs. 3,179 ± 2,413 pg/ml, p = 0.04). Among obese individuals, irregular-shift workers had higher leptin concentration (p < 0.01) and shorter sleep duration (p = 0.01) than obese day-shift workers.

Conclusion

Elevated BMI was associated with high leptin and low ghrelin levels in this population of irregular-shift workers. No influence of LTPA on appetite-related hormones or sleep duration was found. We conclude that moderate LTPA is insufficient to attenuate the higher BMI associated with this type of irregular-shift work in truck drivers.

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Title: Leisure-time physical activity does not fully explain the higher body mass index in irregular-shift workers
Authors: Elaine Cristina Marqueze
Melissa Araújo Ulhôa
Claudia Roberta Castro Moreno
Publication date: 01-04-2014
Publisher: Springer Berlin Heidelberg
Published in: International Archives of Occupational and Environmental Health / Issue 3/2014
Print ISSN: 0340-0131
Electronic ISSN: 1432-1246
DOI: https://doi.org/10.1007/s00420-013-0850-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Leisure-time physical activity does not fully explain the higher body mass index in irregular-shift workers

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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