Metabolic syndrome Nutritional, Metabolic, Endocrine Metabolic disorder, unspecified
Conditions
Interventions
Anthropometric measures (weight, height, waist circumference) and blood pressure will be measured on all participants. A fasting blood sample will be collected for measurement of serum 25-hydroxy vita
Sponsors
Shandong University (China)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Male and female participants 2. Aged 35-60 years old 3. Living in Jinan, China for more than 5 years 4. Employed in an office setting 5. Has had more than 13 years of education
Exclusion criteria
Exclusion criteria: 1. Use of vitamin D and calcium supplementation within 60 days of screening 2. Current use of cigarettes (self-report) 3. Alcohol abuse (defined as >14 drinks/week for men, >7 drinks/week for women) 4. Diagnosis of overt diabetes, cardiovascular disease or other systematic disease 5. Use of medications that influence vitamin D, glucose, lipid profiles or blood pressure 6. Engaging in more than 20 minutes of strenuous physical activity or exercise that causes excessive breathing and sweating more than once per week
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Weight, height, waist circumference and blood pressure 2. Body mass index (BMI) 3. Serum 25(OH)D and insulin, measured by double antibody radioimmunoassay 4. Plasma glucose, triglycerides, and HDL cholesterol, measured by enzymatic colorimetric assay | — |
Secondary
| Measure | Time frame |
|---|---|
| LDL cholesterol, calculated using the Friedwald equation | — |
Countries
China
Outcome results
None listed