Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.

<h4>Background</h4>The minimal physical activity intensity that would confer health benefits among adolescents is unknown. The purpose of this study was to examine the associations of accelerometer-derived light-intensity (split into low and high) physical activity, and moderate- to vigo...

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Autores principales:	Valerie Carson, Nicola D Ridgers, Bethany J Howard, Elisabeth A H Winkler, Genevieve N Healy, Neville Owen, David W Dunstan, Jo Salmon
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/613cb9104fff467cbb62cc72d893973c
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spelling	oai:doaj.org-article:613cb9104fff467cbb62cc72d893973c2021-11-18T09:00:26ZLight-intensity physical activity and cardiometabolic biomarkers in US adolescents.1932-620310.1371/journal.pone.0071417https://doaj.org/article/613cb9104fff467cbb62cc72d893973c2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23951157/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The minimal physical activity intensity that would confer health benefits among adolescents is unknown. The purpose of this study was to examine the associations of accelerometer-derived light-intensity (split into low and high) physical activity, and moderate- to vigorous-intensity physical activity with cardiometabolic biomarkers in a large population-based sample.<h4>Methods</h4>The study is based on 1,731 adolescents, aged 12-19 years from the 2003/04 and 2005/06 National Health and Nutrition Examination Survey. Low light-intensity activity (100-799 counts/min), high light-intensity activity (800 counts/min to <4 METs) and moderate- to vigorous-intensity activity (≥ 4 METs, Freedson age-specific equation) were accelerometer-derived. Cardiometabolic biomarkers, including waist circumference, systolic blood pressure, diastolic blood pressure, HDL-cholesterol, and C-reactive protein were measured. Triglycerides, LDL- cholesterol, insulin, glucose, and homeostatic model assessments of β-cell function (HOMA-%B) and insulin sensitivity (HOMA-%S) were also measured in a fasting sub-sample (n=807).<h4>Results</h4>Adjusted for confounders, each additional hour/day of low light-intensity activity was associated with 0.59 (95% CI: 1.18-0.01) mmHG lower diastolic blood pressure. Each additional hour/day of high light-intensity activity was associated with 1.67 (2.94-0.39) mmHG lower diastolic blood pressure and 0.04 (0.001-0.07) mmol/L higher HDL-cholesterol. Each additional hour/day of moderate- to vigorous-intensity activity was associated with 3.54 (5.73-1.35) mmHG lower systolic blood pressure, 5.49 (1.11-9.77)% lower waist circumference, 25.87 (6.08-49.34)% lower insulin, and 16.18 (4.92-28.53)% higher HOMA-%S.<h4>Conclusions</h4>Time spent in low light-intensity physical activity and high light-intensity physical activity had some favorable associations with biomarkers. Consistent with current physical activity recommendations for adolescents, moderate- to vigorous-intensity activity had favorable associations with many cardiometabolic biomarkers. While increasing MVPA should still be a public health priority, further studies are needed to identify dose-response relationships for light-intensity activity thresholds to inform future recommendations and interventions for adolescents.Valerie CarsonNicola D RidgersBethany J HowardElisabeth A H WinklerGenevieve N HealyNeville OwenDavid W DunstanJo SalmonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 8, p e71417 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Valerie Carson Nicola D Ridgers Bethany J Howard Elisabeth A H Winkler Genevieve N Healy Neville Owen David W Dunstan Jo Salmon Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
description	<h4>Background</h4>The minimal physical activity intensity that would confer health benefits among adolescents is unknown. The purpose of this study was to examine the associations of accelerometer-derived light-intensity (split into low and high) physical activity, and moderate- to vigorous-intensity physical activity with cardiometabolic biomarkers in a large population-based sample.<h4>Methods</h4>The study is based on 1,731 adolescents, aged 12-19 years from the 2003/04 and 2005/06 National Health and Nutrition Examination Survey. Low light-intensity activity (100-799 counts/min), high light-intensity activity (800 counts/min to <4 METs) and moderate- to vigorous-intensity activity (≥ 4 METs, Freedson age-specific equation) were accelerometer-derived. Cardiometabolic biomarkers, including waist circumference, systolic blood pressure, diastolic blood pressure, HDL-cholesterol, and C-reactive protein were measured. Triglycerides, LDL- cholesterol, insulin, glucose, and homeostatic model assessments of β-cell function (HOMA-%B) and insulin sensitivity (HOMA-%S) were also measured in a fasting sub-sample (n=807).<h4>Results</h4>Adjusted for confounders, each additional hour/day of low light-intensity activity was associated with 0.59 (95% CI: 1.18-0.01) mmHG lower diastolic blood pressure. Each additional hour/day of high light-intensity activity was associated with 1.67 (2.94-0.39) mmHG lower diastolic blood pressure and 0.04 (0.001-0.07) mmol/L higher HDL-cholesterol. Each additional hour/day of moderate- to vigorous-intensity activity was associated with 3.54 (5.73-1.35) mmHG lower systolic blood pressure, 5.49 (1.11-9.77)% lower waist circumference, 25.87 (6.08-49.34)% lower insulin, and 16.18 (4.92-28.53)% higher HOMA-%S.<h4>Conclusions</h4>Time spent in low light-intensity physical activity and high light-intensity physical activity had some favorable associations with biomarkers. Consistent with current physical activity recommendations for adolescents, moderate- to vigorous-intensity activity had favorable associations with many cardiometabolic biomarkers. While increasing MVPA should still be a public health priority, further studies are needed to identify dose-response relationships for light-intensity activity thresholds to inform future recommendations and interventions for adolescents.
format	article
author	Valerie Carson Nicola D Ridgers Bethany J Howard Elisabeth A H Winkler Genevieve N Healy Neville Owen David W Dunstan Jo Salmon
author_facet	Valerie Carson Nicola D Ridgers Bethany J Howard Elisabeth A H Winkler Genevieve N Healy Neville Owen David W Dunstan Jo Salmon
author_sort	Valerie Carson
title	Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
title_short	Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
title_full	Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
title_fullStr	Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
title_full_unstemmed	Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.
title_sort	light-intensity physical activity and cardiometabolic biomarkers in us adolescents.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/613cb9104fff467cbb62cc72d893973c
work_keys_str_mv	AT valeriecarson lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT nicoladridgers lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT bethanyjhoward lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT elisabethahwinkler lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT genevievenhealy lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT nevilleowen lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT davidwdunstan lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents AT josalmon lightintensityphysicalactivityandcardiometabolicbiomarkersinusadolescents
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Light-intensity physical activity and cardiometabolic biomarkers in US adolescents.

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