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Relationship between muscle strength and dyslipidemia, serum 25(OH)D, and weight status among diverse schoolchildren: a cross-sectional analysis.

ABSTRACT: The relationship between muscle strength and cardiometabolic risk factors in youth, and the potential influence of vitamin D status on this relationship, is not well understood. This study examined associations between muscle strength and dyslipidemia, serum 25-hydroxyvitamin D [25(OH)D], and weight status in diverse schoolchildren.Measures of hand-grip strength (standardized for sex and body weight), anthropometrics (height and weight converted to BMI z-score [BMIz]), sociodemographics, and fasting blood concentrations of plasma HDL-C and triglycerides and serum 25(OH)D were collected from 350 4th-8th grade schoolchildren (11.2?±?1.3 y, 49.4% female, 56.3% non-white/Caucasian). Logistic regression was used to measure associations between standardized tertiles of grip strength and blood lipids, 25(OH)D, and weight status along with associations between 25(OH)D and dyslipidemia and weight status.Children with higher grip strength had lower odds of overweight/obesity (OR: 0.03, 95% CI: 0.01-0.06, in the highest tertile of grip strength vs. lowest, p for trend

SUBMITTER: Blakeley CE

PROVIDER: S-EPMC5797355 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Relationship between muscle strength and dyslipidemia, serum 25(OH)D, and weight status among diverse schoolchildren: a cross-sectional analysis.

Blakeley Caitlin E CE Van Rompay Maria I MI Schultz Nicole S NS Sacheck Jennifer M JM

BMC pediatrics 20180202 1

<h4>Background</h4>The relationship between muscle strength and cardiometabolic risk factors in youth, and the potential influence of vitamin D status on this relationship, is not well understood. This study examined associations between muscle strength and dyslipidemia, serum 25-hydroxyvitamin D [25(OH)D], and weight status in diverse schoolchildren.<h4>Methods</h4>Measures of hand-grip strength (standardized for sex and body weight), anthropometrics (height and weight converted to BMI z-score ...[more]

PMID: 29394922

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Project description:The physiological relevance C-3 epimer of 25-hydroxyvitamin D (3-epi-25(OH)D) is not well understood among youth. The objective of this study was to assess whether demographic/physiologic characteristics were associated with 3-epi-25(OH)D3 concentrations in youth. Associations between 3-epi-25(OH)D3 and demographics and between 3-epi-25(OH)D3, total 25-hydroxyvitamin (25(OH)D) (25(OH)D2 + 25(OH)D3), total cholesterol, high-density lipoprotein, low-density lipoprotein, and triglycerides were examined in racially/ethnically diverse schoolchildren (n = 682; age, 8-15 years) at Boston-area urban schools. Approximately 50% of participants had detectable 3-epi-25(OH)D3 (range 0.95-3.95 ng/mL). The percentage of 3-epi-25(OH)D3 of total 25(OH)D ranged from 2.5% to 17.0% (median 5.5%). Males were 38% more likely than females to have detectable 3-epi-25(OH)D3 concentrations. Both Asian and black race/ethnicity were associated with lower odds of having detectable 3-epi-25(OH)D3 compared with non-Hispanic white children (Asian vs. white, odds ratio (OR) 0.28, 95% confidence interval (CI) 0.14-0.53; black vs. white, OR 0.38, 95%CI 0.23-0.63, p < 0.001). Having an adequate (20-29 ng/mL) or optimal (>30 ng/mL) 25(OH)D concentration was associated with higher odds of having detectable 3-epi-25(OH)D3 than having an inadequate (<20 ng/mL) concentration (OR 4.78, 95%CI 3.23-6.94 or OR 14.10, 95%CI 7.10-28.0, respectively). There was no association between 3-epi-25(OH)D3 and blood lipids. However, when considering 3-epi-25(OH)D3 as a percentage of total 25(OH)D, total cholesterol was lower in children with percent 3-epi-25(OH)D3 above the median (mean difference -7.1 mg/dL, p = 0.01). In conclusion, among schoolchildren, sex, race/ethnicity, and total serum 25(OH)D concentration is differentially associated with 3-epi-25(OH)D. The physiological relevance of 3-epi-25(OH)D3 may be related to the 3-epi-25(OH)D3 as a percentage of total 25(OH)D and should be considered in future investigations.

Dataset Information

Relationship between muscle strength and dyslipidemia, serum 25(OH)D, and weight status among diverse schoolchildren: a cross-sectional analysis.

Publications

Relationship between muscle strength and dyslipidemia, serum 25(OH)D, and weight status among diverse schoolchildren: a cross-sectional analysis.

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