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Abstract
Sleep duration improves short-term following bariatric surgery; however, little is known about its association with bodyweight medium- to long-term post-surgery. The purpose of this study was to describe sleep duration and its relationship with BMI and body composition. Forty-nine individuals, with a BMI of 36.6 ± 9.8 kg/m2, regained 26.4 ± 17.8% of their lost weight 9.5 ± 3.3 years post-surgery (range 3–16 years). Sleep logs and ActivPAL3 accelerometers were used to assess sleep duration. Participants averaged 7.9 ± 1.6 h/day and 8.5 ± 1.7 h/day of sleep for weekdays and weekends, respectively (P < 0.01). A positive association between delta weekend-weekday sleep timing midpoint with BMI (β = 0.03, 95% CI = 0.01, 0.06; P = 0.01) was noted in the multivariable-adjusted model. On average, this sample achieved recommended sleep durations medium- to long-term post-surgery. Having an earlier sleep timing midpoint during the weekend may be associated with lower BMI.
Details
; McNeil, Jessica 2 ; Roumeliotis, George 3 ; Reid, Tyler G, R 4 ; Carver, Tamara E 5 ; Andersen, Ross E 1 1 McGill University, Department of Kinesiology and Physical Education, Montreal, Canada (GRID:grid.14709.3b) (ISNI:0000 0004 1936 8649)
2 Alberta Health Services, Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Calgary, Canada (GRID:grid.413574.0) (ISNI:0000 0001 0693 8815)
3 McGill University, School of Physical and Occupational Therapy, Montreal, Canada (GRID:grid.14709.3b) (ISNI:0000 0004 1936 8649)
4 Stanford University, Department of Aeronautics and Astronautics, Stanford, USA (GRID:grid.168010.e) (ISNI:0000000419368956)
5 McGill University, Department of Family Medicine, Montreal, Canada (GRID:grid.14709.3b) (ISNI:0000 0004 1936 8649)