T2 Diabetes helped by aerobic exercise, adding 1200 IU vitamin D helped even more – RCT Sept 2014

Effects of vitamin D supplementation and circuit training on indices of obesity and insulin resistance in T2D and vitamin D deficient elderly women.

 
J Exerc Nutrition Biochem. 2014 Sep;18(3):249-57. doi: 10.5717/jenb.2014.18.3.249. Epub 2014 Aug 26.
Kim HJ1, Kang CK1, Park H1, Lee MG1.

VitaminDWiki Summary

Elderly women, 25-40 minutes, Circuit training, 3 – 4 times per week for 12 weeks

Benefits
Circuit training Body weight, fat mass, percent body fat, and BMI decreased significantly
TC, TG, HDL-C, and LDL-C showed improvements
1200 IU of vitamin D helped by also lowering Fasting glucose, fasting insulin, and HOMA-IR


Was unable to navigate the Korean publisher website. PDF may be avaiable for free
This RCT was done in Korea, where there (currently) are not many obese people
Obese people would have needed 2-3X more vitamin D to get the same benefit
VitaminDWiki guesses more weight loss if both higher dose and loading dose were used
Loading dose would have also allowed increase in muscle strength during the RCT

See also VitaminDWiki

Vitamin D appears to both prevent and treat diabetes

Number of articles in both categories of Diabetes and:
'This list is automatically updated''

  • Dark Skin 24;   Intervention 56;   Meta-analysis 38;   Obesity 35;  Pregnancy 44;   T1 (child) 39;  Omega-3 11;  Vitamin D Receptor 24;  Genetics 12;  Magnesium 27    Click here to see details

Some Diabetes studies

50 ng of Vitamin D fights Diabetes

T1 Diabetes

Pre-Diabetes

Diabetes, Metabolic Syndrome and Magnesium - many studies

Obese need more Vitamin D
Image

  • Normal weight     Obese     (50 ng = 125 nanomole)

Click here for 2014 study

 

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PURPOSE:
The purpose of this study was to investigate the effects of vitamin D supplementation and circuit training on body composition, abdominal fat, blood lipids, and insulin resistance in T2D and vitamin D deficient elderly women.

METHODS:
Fifty-two elderly women were randomly assigned to either the vitamin D supplementation with circuit training group (D+T: n = 15), the circuit training group (T: n = 13), the vitamin D supplementation group (D: n = 11), or the control group (CON: n = 13). The subjects in D took vitamin D supplements at 1,200 IU per day for 12 weeks; the subjects in T exercised 3 to 4 times per week, 25 to 40 minutes per session for 12 weeks; and the subjects in D+T participated in both treatments. Subjects in CON were asked to maintain normal daily life pattern for the duration of the study. Body composition, abdominal fat, blood lipids, and surrogate indices for insulin resistance were measured at pre- and post-test and the data were compared among the four groups and between two tests by utilizing two-way ANOVA with repeated measures. The main results of the present study were as follows:

RESULTS:
1) Body weight, fat mass, percent body fat, and BMI decreased significantly in T, whereas there were no significant changes in the variables in D and CON. Lean body mass showed no significant changes in all groups. 2) TFA and SFA decreased significantly in T, whereas there were no significant changes in the variables in D and CON. The other abdominal fat related variables showed no significant changes in all groups. 3) TC, TG, HDL-C, and LDL-C showed improvements in T, whereas there were no significant changes in the variables in D and CON. 4) Fasting glucose, fasting insulin, and HOMA-IR tended to be lower in D+T.

CONCLUSION:
It was concluded that the 12 weeks of vitamin D supplementation and circuit training would have positive effects on abdominal fat and blood lipid profiles in T2D and vitamin D deficient elderly women. Vitamin D supplementation was especially effective when it was complemented with exercise training.

PMID: 25566461

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