Overview

Effect of Vitamin D Supplementation on Muscle Mass and Function

Status:
Completed
Trial end date:
2010-02-01
Target enrollment:
0
Participant gender:
All
Summary
The study was designed to assess the effects of vitamin D supplementation during exercise training on body composition, muscle function, and glucose tolerance. The investigators hypothesis for these studies is that vitamin D supplementation enhances exercise-induced increases in strength and lean mass, potentially through enhancing insulin sensitivity and reducing inflammation.
Phase:
Phase 4
Accepts Healthy Volunteers?
Accepts Healthy Volunteers
Details
Lead Sponsor:
Purdue University
Treatments:
Cholecalciferol
Ergocalciferols
Vitamin D
Vitamins
Criteria
Inclusion Criteria:

- Physical activity scores in the "low" to "very low" category

- Fitness estimations in the "below average" or lower categories

- body mass index scores >24.9 indicating overweight or obesity.

Exclusion Criteria:

- Use of tanning booths or other artificial UV light exposure

- High baseline vitamin D and calcium intake

- Plans to visit sunny/warm destinations during the winter months/study period

- History or presence of metabolic disease, type 2 diabetes, eating disorders,
gastrointestinal disorders, pregnancy or lactation

- Use of drugs to treat obesity (last 12 weeks)

- Use of over the counter anti-obesity agents (last 12 weeks)

- Recent initiation of an exercise program (last four weeks).