دورية أكاديمية
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The Prevalence of Low Energy Availability in Cross-Country Skiers during the Annual Cycle.

التفاصيل البيبلوغرافية
العنوان: The Prevalence of Low Energy Availability in Cross-Country Skiers during the Annual Cycle.
المؤلفون: Bushmanova EA; Department of Ecological and Medical Physiology, Ural Branch, Institute of Physiology, Russian Academy of Sciences, Pervomaiskaya av.50, Syktyvkar 167982, Russia., Lyudinina AY; Department of Ecological and Medical Physiology, Ural Branch, Institute of Physiology, Russian Academy of Sciences, Pervomaiskaya av.50, Syktyvkar 167982, Russia., Bojko ER; Department of Ecological and Medical Physiology, Ural Branch, Institute of Physiology, Russian Academy of Sciences, Pervomaiskaya av.50, Syktyvkar 167982, Russia.
المصدر: Nutrients [Nutrients] 2024 Jul 15; Vol. 16 (14). Date of Electronic Publication: 2024 Jul 15.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Publishing Country of Publication: Switzerland NLM ID: 101521595 Publication Model: Electronic Cited Medium: Internet ISSN: 2072-6643 (Electronic) Linking ISSN: 20726643 NLM ISO Abbreviation: Nutrients Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI Publishing
مواضيع طبية MeSH: Skiing*/physiology , Energy Intake* , Energy Metabolism*/physiology, Humans ; Male ; Adult ; Young Adult ; Prevalence ; Relative Energy Deficiency in Sport ; Athletes/statistics & numerical data ; Calorimetry, Indirect ; Dietary Carbohydrates/administration & dosage ; Dietary Fats/administration & dosage ; Sports Nutritional Physiological Phenomena ; Heart Rate/physiology
مستخلص: Background and Objectives: A sustained mismatch between energy intake (EI) and exercise energy expenditure (EEE) can lead to Low Energy Availability (LEA), as well as health and performance impairments characteristic of Relative Energy Deficiency in Sport (RED-S). Research in females has identified specific LEA cut-points for the risks of developing physiological and performance disturbances. Cut-points in males have yet to be evaluated; therefore, this study examined the prevalence of LEA in highly trained male cross-country skiers. The key purpose of this study was to analyze EI, resting energy expenditure (REE), EEE, and energy availability (EA) in highly trained cross-country skiers during the preparation and competition periods. The secondary objective of our study was to evaluate the relative contribution of fats and carbohydrates to EI, REE, and EEE.
Materials and Methods: EI was determined by an estimated 24 h diet recall method, REE was assessed by indirect calorimetry, and EEE was estimated from heart rate in 27 cross-country skiers.
Results: EI amounted to 4050 ± 797 kcal/day on a typical training day (TD) and 5986 ± 924 kcal/day ( p < 0.001) on a typical competition day (CD). REE on TDs (2111 ± 294 kcal/day or 30 ± 6 kcal/day/kg) was higher ( p < 0.05) than on CDs (1891 ± 504 kcal/day or 27 ± 7 kcal/day/kg). The EA in the athletes was <15 kcal∙kg FFM -1 ·d -1 on TDs and <65 kcal∙kg FFM -1 ·d -1 on CDs. EI was not optimal, as indicated by low EA throughout TDs (June). This could be associated with insufficient EI along with a high amount of EEE (3690.7 ± 485.2 kcal/day). During the transition from TD to CD, an increase in the contribution of fats to EI and EEE was observed in cross-country skiers.
Conclusion: The conception of LEA and REDs and their potential implication for performance is underestimated among coaches and athletes. The importance of appropriate dietary strategies is essential to ensure that enough calories are consumed to support efficient training.
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معلومات مُعتمدة: 1021051201877-3 Subsidies for the implementation of State Assignment
فهرسة مساهمة: Keywords: cross-country skiers; energy availability; energy expenditure; energy intake; fats and carbohydrates contribution
المشرفين على المادة: 0 (Dietary Carbohydrates)
0 (Dietary Fats)
تواريخ الأحداث: Date Created: 20240727 Date Completed: 20240728 Latest Revision: 20240729
رمز التحديث: 20240729
مُعرف محوري في PubMed: PMC11279856
DOI: 10.3390/nu16142279
PMID: 39064722
قاعدة البيانات: MEDLINE
الوصف
تدمد:2072-6643
DOI:10.3390/nu16142279