Effects of vitamin D 3 supplementation on cardiac, muscle, and immune responses after a marathon race: a single-blind, placebo-controlled trial

Key Result

Vitamin D3 supplementation attenuated PC responses and was associated with lower creatine kinase and creatine kinase-MB levels 24 hours after marathon running.

Key Points

• This research aims to assess how vitamin D3 supplementation affects cardiovascular and immune responses after marathon running.
• Single-blind, placebo-controlled trial design
• Participants supplemented with vitamin D3 or placebo
• Measurements taken at baseline and 24 hours post-race
• Assessment of creatine kinase and immune markers
• Participants receiving vitamin D3 showed lower creatine kinase levels at 24 hours post-race
• Significant differences in immune recovery patterns observed between groups
• Findings suggest potential for vitamin D3 to lessen muscle stress and improve recovery after strenuous exercise