کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5967659 | 1576166 | 2015 | 10 صفحه PDF | دانلود رایگان |
Background/objectiveIncreased physical activity (PA) and decreased sedentary behaviors (SBs) may have beneficial effects on cardio-metabolic risk in adolescents. The aim of this study was to examine the associations between independent/combined effects of PA and SB with individual/clustered cardio-metabolic risk factors.MethodsA sample of 769 adolescents (12.5-17.5 years) from the HELENA cross-sectional study (Healthy Lifestyle in Europe by Nutrition in Adolescence) and with valid data on metabolic risk factors were included.ResultsConcerning moderate-to-vigorous-PA (MVPA) and vigorous-PA (VPA), measured with accelerometers, girls tended to do more MVPA (36%) and VPA (114%) than boys. Unadjusted analyses show a positive association between “PA â¥Â 60 min/d; SB â¥Â 2 h” and the ratio TC/HDL-c (β = 0.27; 95%CI 0.01 to 0.52; p < 0.05), and a negative association between “MVPA â¥Â 60 min/d; SB < 2 h” with the â 4Skinfolds (β = â 0.32; 95%CI â 0.61 to â 0.02; p < 0.05). Moreover, “SB â¥Â 2 h/d” was associated with increased cardio-metabolic risk (PR 1.59; 95%CI 1.05 to 2.39; p < 0.05), while “PA â¥Â 60 min/d; SB < 2 h” had a protective effect against cardio-metabolic risk (PR 0.48; 95%CI 0.25 to 0.91; p < 0.05). After adjustment for potential confounders, a positive association between SB and â 4Skinfolds was shown (β = 0.28; 95%CI 0.04 to 0.53; p < 0.05). Furthermore, VO2max (mL/kg/min) tends to increase in those participants who do higher VPA and less SB (p = 0.042), and there was a protective effect of “VPA â¥Â 30 min/d; SB < 2 h” against cardio-metabolic risk (PR 0.24; 95%CI 0.07 to 0.85; p < 0.05).ConclusionThe current study suggests that adolescents should be encouraged to decrease sedentary lifestyle and increase physical activity, especially vigorous physical activity, in order to reduce cardio-metabolic risk.
Journal: International Journal of Cardiology - Volume 186, 1 May 2015, Pages 186-195