The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men
Here, we aim to investigate the independent and combined associations of serum 25-hydroxyvitamin D (25(OH)D) and cardiorespiratory fitness (CRF) with glucose metabolism. Fasting blood samples of 107 men aged 40–79 years were analyzed for 25(OH)D, glucose, insulin, glycated hemoglobin, and lipid prof...
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doaj-13e4c870ab5843c88e09a201ebc0f68e2020-11-24T21:13:34ZengMDPI AGNutrients2072-66432014-12-01719110210.3390/nu7010091nu7010091The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese MenXiaomin Sun0Zhen-Bo Cao1Kumpei Tanisawa2Tomoko Ito3Satomi Oshima4Mitsuru Higuchi5Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, JapanSchool of Kinesiology, Shanghai University of Sport, 399 Chang Hai Road, Shanghai 200438, ChinaGraduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, JapanGraduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, JapanFaculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, JapanFaculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, JapanHere, we aim to investigate the independent and combined associations of serum 25-hydroxyvitamin D (25(OH)D) and cardiorespiratory fitness (CRF) with glucose metabolism. Fasting blood samples of 107 men aged 40–79 years were analyzed for 25(OH)D, glucose, insulin, glycated hemoglobin, and lipid profile. Homeostasis model assessment of insulin resistance index (HOMA-IR) was calculated from the fasting concentrations of glucose and insulin. Visceral fat area (VFA) was determined by magnetic resonance imaging and CRF by measuring maximal oxygen uptake. Median 25(OH)D concentration was 36.3 nmol/L, while the prevalence of 25(OH)D deficiency was 74.8%. Participants with high CRF had significantly lower HOMA-IR, glycated hemoglobin, and insulin values than participants with low CRF (p < 0.05). Higher 25(OH)D concentration was strongly correlated with lower HOMA-IR and insulin values independent of VFA (p < 0.01) but significantly affected by CRF. In the high CRF group, participants with higher 25(OH)D concentration had lower HOMA-IR values than participants with low 25(OH)D concentration (p < 0.05). Higher 25(OH)D and CRF are crucial for reducing insulin resistance regardless of abdominal fat. In addition, higher 25(OH)D concentration may strengthen the effect of CRF on reducing insulin resistance in middle-aged and elderly Japanese men with high CRF.http://www.mdpi.com/2072-6643/7/1/91vitamin Dcardiorespiratory fitnessinsulin resistancevisceral fat |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaomin Sun Zhen-Bo Cao Kumpei Tanisawa Tomoko Ito Satomi Oshima Mitsuru Higuchi |
spellingShingle |
Xiaomin Sun Zhen-Bo Cao Kumpei Tanisawa Tomoko Ito Satomi Oshima Mitsuru Higuchi The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men Nutrients vitamin D cardiorespiratory fitness insulin resistance visceral fat |
author_facet |
Xiaomin Sun Zhen-Bo Cao Kumpei Tanisawa Tomoko Ito Satomi Oshima Mitsuru Higuchi |
author_sort |
Xiaomin Sun |
title |
The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men |
title_short |
The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men |
title_full |
The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men |
title_fullStr |
The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men |
title_full_unstemmed |
The Relationship between Serum 25-Hydroxyvitamin D Concentration, Cardiorespiratory Fitness, and Insulin Resistance in Japanese Men |
title_sort |
relationship between serum 25-hydroxyvitamin d concentration, cardiorespiratory fitness, and insulin resistance in japanese men |
publisher |
MDPI AG |
series |
Nutrients |
issn |
2072-6643 |
publishDate |
2014-12-01 |
description |
Here, we aim to investigate the independent and combined associations of serum 25-hydroxyvitamin D (25(OH)D) and cardiorespiratory fitness (CRF) with glucose metabolism. Fasting blood samples of 107 men aged 40–79 years were analyzed for 25(OH)D, glucose, insulin, glycated hemoglobin, and lipid profile. Homeostasis model assessment of insulin resistance index (HOMA-IR) was calculated from the fasting concentrations of glucose and insulin. Visceral fat area (VFA) was determined by magnetic resonance imaging and CRF by measuring maximal oxygen uptake. Median 25(OH)D concentration was 36.3 nmol/L, while the prevalence of 25(OH)D deficiency was 74.8%. Participants with high CRF had significantly lower HOMA-IR, glycated hemoglobin, and insulin values than participants with low CRF (p < 0.05). Higher 25(OH)D concentration was strongly correlated with lower HOMA-IR and insulin values independent of VFA (p < 0.01) but significantly affected by CRF. In the high CRF group, participants with higher 25(OH)D concentration had lower HOMA-IR values than participants with low 25(OH)D concentration (p < 0.05). Higher 25(OH)D and CRF are crucial for reducing insulin resistance regardless of abdominal fat. In addition, higher 25(OH)D concentration may strengthen the effect of CRF on reducing insulin resistance in middle-aged and elderly Japanese men with high CRF. |
topic |
vitamin D cardiorespiratory fitness insulin resistance visceral fat |
url |
http://www.mdpi.com/2072-6643/7/1/91 |
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