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Hildebrand M, Kolle E, Hansen BH, Collings PJ, Wijndaele K, Kordas K, Cooper AR, Sherar LB, Andersen LB, Sardinha LB, Kriemler S, Hallal P, van Sluijs E, Ekelund U. Association between birth weight and objectively measured sedentary time is mediated by central adiposity: data in 10,793 youth from the International Children's Accelerometry Database. Am J Clin Nutr 2015; 101:983-90. [PMID: 25832337 PMCID: PMC4409689 DOI: 10.3945/ajcn.114.103648] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/09/2015] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Birth weight is an early correlate of disease later in life, and animal studies suggest that low birth weight is associated with reduced activity and increased sedentary time. Whether birth weight predicts later sedentary time in humans is uncertain. OBJECTIVES We examined the relation between birth weight and sedentary time in youth and examined whether this association was mediated by central adiposity. DESIGN We used pooled cross-sectional data from 8 observational studies conducted between 1997 and 2007 that consisted of 10,793 youth (boys: 47%) aged 6-18 y from the International Children's Accelerometry Database. Birth weight was measured in hospitals or maternally reported, sedentary time was assessed by using accelerometry (<100 counts/min), and abdominal adiposity (waist circumference) was measured according to WHO procedures. A mediation analysis with bootstrapping was used to analyze data. RESULTS The mean (±SD) time spent sedentary was 370 ± 91 min/d. Birth weight was positively associated with sedentary time (B = 4.04, P = 0.006) and waist circumference (B = 1.59, P < 0.001), whereas waist circumference was positively associated with sedentary time (B = 0.82, P < 0.001). Results of the mediation analysis showed a significant indirect effect of birth weight on sedentary time through waist circumference (B: 1.30; 95% bias-corrected CI: 0.94, 1.72), and when waist circumference was controlled for, the effect of birth weight on sedentary time was attenuated by 32% (B = 2.74, P = 0.06). CONCLUSION The association between birth weight and sedentary time appears partially mediated by central adiposity, suggesting that both birth weight and abdominal adiposity may be correlates of sedentary time in youth.
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Affiliation(s)
- Maria Hildebrand
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Elin Kolle
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Bjørge H Hansen
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Paul J Collings
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Katrien Wijndaele
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Katarzyna Kordas
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Ashley R Cooper
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Lauren B Sherar
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Lars Bo Andersen
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Luis B Sardinha
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Susi Kriemler
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Pedro Hallal
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Esther van Sluijs
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
| | - Ulf Ekelund
- From the Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway (MH, EK, BHH, LBA, and UE); the Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom (PJC, KW, EvS, and UE); the School of Social and Community Medicine (KK) and the Centre for Exercise, Nutrition & Health Sciences, School for Policy Studies (ARC), University of Bristol, Bristol, United Kingdom; the School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom (LB Sherar); the Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark (LBA); the Department of Sport and Health, University of Lisbon, Lisbon, Portugal (LB Sardinha); the Institute of Social and Preventive Medicine, University of Zürich, Zürich, Switzerland (SK); and the Department of Physical Education, Federal University of Pelotas, Pelotas, Brazil (PH)
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