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Nutrients
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Dietary Supplements and Exercise Performance
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Dietary Supplements and Exercise Performance

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Sports Nutrition".

Deadline for manuscript submissions: closed (15 October 2024) | Viewed by 6143

Special Issue Editor

Dr. María Concepción Robles Gil

E-Mail Website
Guest Editor
Department of Didactics of Musical, Plastic and Corporal Expression, School of Teacher Training, University of Extremadura, 10003 Cáceres, Spain
Interests: exercise physiology; performance; steroids; trace elements; menopause; diet
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nutritional interventions have been widely employed to optimize athletic performance across various modalities and populations. There is an extensive body of literature examining the overall energy balance, macronutrient and micronutrient intake, and dietary supplements in relation to different aspects of sports performance. These nutritional interventions have the potential to influence recovery processes, impact adaptation to varying loads and enhance athletic performance. The purpose is to analyze the relationship between dietary intake, sports supplementation and their effects on adaptation processes, recovery and athletic performance among diverse population groups. For instance, we may differentiate based on the type of sport, categorizing sports as predominantly aerobic, anaerobic or mixed. This Special Issue aims to collect the latest information about the effects and potential benefits of nutritional supplementation associated with exercise in populations of different ages and genders, as well as cases of special populations, such as individuals with diverse diseases.

Dr. María Concepción Robles Gil
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nutrients is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nutritional interventions
  • dietary supplements
  • sport
  • exercise
  • physical activity

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Published Papers (2 papers)

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Review

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38 pages, 2535 KiB  
Review
Endurance in Long-Distance Swimming and the Use of Nutritional Aids
by Álvaro Miguel-Ortega, Julio Calleja-González and Juan Mielgo-Ayuso
Nutrients 2024, 16(22), 3949; https://doi.org/10.3390/nu16223949 - 19 Nov 2024
Cited by 2 | Viewed by 4018
Abstract
Background: Long-distance swimmers exert energetic, physiological, and neuromuscular demands that must be matched with adequate body composition to improve their performance in long-distance swimming. Objectives: This review aims to compile all available information on energetic and physiological demands, optimal body composition, nutrition, and [...] Read more.
Background: Long-distance swimmers exert energetic, physiological, and neuromuscular demands that must be matched with adequate body composition to improve their performance in long-distance swimming. Objectives: This review aims to compile all available information on energetic and physiological demands, optimal body composition, nutrition, and ergogenic supplements in long-distance swimming. This will provide an understanding of the specific challenges and needs of this sport and will help swimmers and coaches design more effective training and nutrition plans to optimise performance and achieve their goals. Methods: Databases such as Web of Science, SciELO Citation Index, MEDLINE (PubMed), Current Contents Connect, KCI-Korean Journal Database, and Scopus were searched for publications in English using keywords such as swimming, endurance, energy demands, physiological demands, nutrition, body composition, and ergogenic aids, individually or in combination. Results: There is convincing evidence that several physical indicators, such as propulsive surface area, technical, such as stroke rate, and functional, such as hydration strategies, are related to swimming performance and body composition. Each athlete may have a specific optimal body fat level that is associated with improved sporting performance. The nutritional needs of open water swimmers during competition are quite different from those of pool swimmers. Conclusions: Swimmers with an adequate physique have a high body muscle mass and moderately related anaerobic strength both on land and in the water. These general and specific strength capacities, which are given by certain anthropometric and physiological characteristics, are seen throughout the work, as well as ergogenic and nutritional strategies, which have an important impact on long-distance swimming performance. Full article
(This article belongs to the Special Issue Dietary Supplements and Exercise Performance)
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10 pages, 1602 KiB  
Systematic Review
Echinacea Supplementation Does Not Impact Aerobic Capacity and Erythropoiesis in Athletes: A Meta-Analysis
by Stephanie Deccy, Callie Bartkowiak, Nathan Rodricks and Kristopher Paultre
Nutrients 2024, 16(13), 1991; https://doi.org/10.3390/nu16131991 - 22 Jun 2024
Viewed by 1636
Abstract
Athletes are increasingly relying on natural supplements to improve athletic performance. Echinacea, a common herbal supplement, has been studied for its potential erythropoietin-enhancing effects, with mixed results in the literature. The purpose of this meta-analysis is to determine whether echinacea supplementation has erythropoietic [...] Read more.
Athletes are increasingly relying on natural supplements to improve athletic performance. Echinacea, a common herbal supplement, has been studied for its potential erythropoietin-enhancing effects, with mixed results in the literature. The purpose of this meta-analysis is to determine whether echinacea supplementation has erythropoietic or ergogenic effects in athletes. A search strategy was developed to identify trials studying the impact of echinacea supplementation on erythropoiesis and maximal oxygen uptake. The database search yielded 502 studies, 496 of which were excluded in the two-reviewer screening process. Six studies with a total of 107 athletes were included in the analysis. For hemoglobin and hematocrit levels, there were small, positive effect sizes when comparing the difference in pre- and post-intervention levels between the echinacea and placebo groups, at 0.38 (p = 0.02, 95% CI −0.04–0.80, I2 = 70%) and 0.34 (p < 0.01, 95% CI −0.10–0.78, I2 = 86%), respectively, though they did not reach statistical significance. There was also no statistically significant change in erythropoietin (effect size −0.29, p = 0.05, 95% CI −0.75–0.17, I2 = 67%) or maximal oxygen uptake (effect size −0.20, p = 0.95, 95% CI −0.60–0.21, I2 = 0%). Echinacea supplementation did not influence erythropoietin, hemoglobin, hematocrit, or maximal oxygen uptake in athletes; however, the evidence base is limited. Full article
(This article belongs to the Special Issue Dietary Supplements and Exercise Performance)
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