Evaluation of vitamin D level, iron homeostasis, and hematological parameters following two weeks of live-high–train-high altitude in elite female and male alpine skiers

• Published in: Science & sports 2024-12, Vol.39 (8), p.698-705
• Main Authors: Haghbin, M., Tahmasebi, W., Azizi, M., Hoseini, R.
• Format: Article
• Language: English
• Subjects: 1,25(OH)2 Vitamin D; 1,25(OH)2 Vitamine D; Alpin; Alpine; Haute altitude; Hematocrit; Hemoglobin; High altitude; Hématocrite; Hémoglobine
• ISSN: 0765-1597
• DOI: 10.1016/j.scispo.2024.03.003

The association of vitamin D and hematological factors and their changes during high altitude training remains unclear among alpine skiers. This study aimed to evaluate the vitamin D level, iron Homeostasis, and hematological parameters in alpine skiers following two weeks of ski training at high altitude. Twenty alpine skiers were divided randomly into experimental (n=12) and control (n=8) groups. The subjects were selected among Iran's junior alpine skier national team volunteers. Anthropometric parameters were measured, and blood samples were collected to analyze the CBC, plasma ferritin concentration, PTH, serum 25 (OH) D, and other Iron metabolism variables before and after 2weeks of the intervention. Each training session at 3600m altitude for two weeks consisted of 10mins of warm-up, the main ski training, and 5mins of cool-down. The paired sample, and independent samples t-test to compare the mean of variables within and between groups using SPSS software at a significant level of P