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Purpose <p>Obesity and vitamin D deficiency are pressing global health issues, particularly among adolescents. This study investigated the effects of eight weeks of treadmill running (R) and jump rope (JR) training with vitamin D supplementation on leptin, lipid profile and body fat in sedentary obese adolescents with vitamin D deficiency.</p> Methods <p>In this randomized controlled trial, 48 sedentary obese boys (age: 14 ± 1.3&#xa0;years; weight: 78.8 ± 3.8&#xa0;kg; BMI: 30.77 ± 0.76) were randomly assigned to six groups (n = 8 each): R + Vitamin D, R + placebo, JR + Vitamin D, JR + placebo, Vitamin D and control. R training included three sessions/week of 3 × 10-min intervals at 70–85% HRmax with 5-min active recovery. JR training involved 30&#xa0;min per session (1-min activity/30-s rest at 60–90 jumps/min), three times a week. Participants received either 2,000&#xa0;IU/day of vitamin D3 or placebo. All measurements were taken after a 10-h overnight fast, pre- and post-intervention.</p> Results <p>Significant decreases in leptin, body weight, BMI percentile, body fat percentage, triglycerides, total cholesterol, and LDL were found in the exercise groups (p &lt; 0.05). HDL increased significantly in these groups (p &lt; 0.05). After 8&#xa0;weeks, all variables (except HDL) were significantly lower in the exercise groups compared to the Vit D and control groups, but no significant different between R + Vit D with JR + Vit D and vit D with control groups.</p> Conclusion <p>Both treadmill running and jump rope training, especially when combined with vitamin D supplementation, lead to significant improvements in adiposity markers and lipid profile in sedentary obese adolescents.</p>

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Type of exercise program and vitamin D supplementation: their effects on lipid profile and leptin in sedentary, obese adolescents deficient in vitamin D

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Dariush Sheikholeslami-Vatani,
  • Naser Rostamzadeh,
  • Dara Latif Saifalddin,
  • Saied Abdi

摘要

Purpose

Obesity and vitamin D deficiency are pressing global health issues, particularly among adolescents. This study investigated the effects of eight weeks of treadmill running (R) and jump rope (JR) training with vitamin D supplementation on leptin, lipid profile and body fat in sedentary obese adolescents with vitamin D deficiency.

Methods

In this randomized controlled trial, 48 sedentary obese boys (age: 14 ± 1.3 years; weight: 78.8 ± 3.8 kg; BMI: 30.77 ± 0.76) were randomly assigned to six groups (n = 8 each): R + Vitamin D, R + placebo, JR + Vitamin D, JR + placebo, Vitamin D and control. R training included three sessions/week of 3 × 10-min intervals at 70–85% HRmax with 5-min active recovery. JR training involved 30 min per session (1-min activity/30-s rest at 60–90 jumps/min), three times a week. Participants received either 2,000 IU/day of vitamin D3 or placebo. All measurements were taken after a 10-h overnight fast, pre- and post-intervention.

Results

Significant decreases in leptin, body weight, BMI percentile, body fat percentage, triglycerides, total cholesterol, and LDL were found in the exercise groups (p < 0.05). HDL increased significantly in these groups (p < 0.05). After 8 weeks, all variables (except HDL) were significantly lower in the exercise groups compared to the Vit D and control groups, but no significant different between R + Vit D with JR + Vit D and vit D with control groups.

Conclusion

Both treadmill running and jump rope training, especially when combined with vitamin D supplementation, lead to significant improvements in adiposity markers and lipid profile in sedentary obese adolescents.