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Rebelo-Marques A, Coelho-Ribeiro B, De Sousa Lages A, Andrade R, Afonso J, Pereira R, Batista AS, Teixeira VH, Jácome C. Trends and Missing Links in (De)Hydration Research: A Narrative Review. Nutrients 2024; 16:1709. [PMID: 38892642 PMCID: PMC11174495 DOI: 10.3390/nu16111709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Despite decades of literature on (de)hydration in healthy individuals, many unanswered questions remain. To outline research and policy priorities, it is fundamental to recognize the literature trends on (de)hydration and identify current research gaps, which herein we aimed to pinpoint. From a representative sample of 180 (de)hydration studies with 4350 individuals, we found that research is mainly limited to small-scale laboratory-based sample sizes, with high variability in demographics (sex, age, and level of competition); to non-ecological (highly simulated and controlled) conditions; and with a focus on recreationally active male adults (e.g., Tier 1, non-athletes). The laboratory-simulated environments are limiting factors underpinning the need to better translate scientific research into field studies. Although, consistently, dehydration is defined as the loss of 2% of body weight, the hydration status is estimated using a very heterogeneous range of parameters. Water is the most researched hydration fluid, followed by alcoholic beverages with added carbohydrates (CHO). The current research still overlooks beverages supplemented with proteins, amino acids (AA), and glycerol. Future research should invest more effort in "real-world" studies with larger and more heterogeneous cohorts, exploring the entire available spectrum of fluids while addressing hydration outcomes more harmoniously.
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Affiliation(s)
- Alexandre Rebelo-Marques
- Faculty of Medicine, University of Porto, 4200-450 Porto, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-370 Coimbra, Portugal
- Magismed Innovation Institute, 4710-353 Braga, Portugal
| | - Bruna Coelho-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | | | - Renato Andrade
- Clínica Espregueira—FIFA Medical Centre of Excellence, 4350-415 Porto, Portugal
- Dom Henrique Research Centre, 4350-415 Porto, Portugal
- Porto Biomechanics Laboratory (LABIOMEP), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal
| | - José Afonso
- Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
| | - Rogério Pereira
- Clínica Espregueira—FIFA Medical Centre of Excellence, 4350-415 Porto, Portugal
- Dom Henrique Research Centre, 4350-415 Porto, Portugal
- Higher School of Health Fernando Pessoa, 4200-253 Porto, Portugal
| | | | - Vitor Hugo Teixeira
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
- Research Center in Physical Activity, Health and Leisure, CIAFEL, Faculty of Sports, University of Porto, FADEUP, 4200-540 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health, ITR, 4050-600 Porto, Portugal
| | - Cristina Jácome
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal
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Aragón-Vela J, González-Acevedo O, De la Cruz-Márquez JC, Rojas Ruíz FJ, Marín MM, Casuso RA, Plaza-Diaz J, Huertas JFR. The Effects of Acute Deep Seawater Supplementation on Muscle Function after Triathlon. J Clin Med 2024; 13:2258. [PMID: 38673531 PMCID: PMC11051008 DOI: 10.3390/jcm13082258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
(1) Background: Trainers and athletes have always sought to reduce the failure of muscle function during long endurance events. However, nowadays, it is a topic that is generating much debate in the scientific field. Currently, deep-sea water (DSW) intake seems to be a suitable hydration alternative for this type of endurance event. Therefore, the aim of this study was to determine whether DSW consumption during a triathlon event could preserve muscle function after exercise. (2) Methods: Nineteen trained male triathletes (age = 39.0 ± 4.25 years; BMI = 23.67 ± 1.81 kg/m2) randomly performed three triathlons, one of them consuming DSW (Totum SPORT 30 AB, Laboratories Quinton International, S.L., Spain), the other consuming isotonic placebo and the last with tap water-hydration. A vertical jump test with countermovement and an isometric muscle strength test were conducted before and after the triathlon test. (3) Results: There was a significant difference between treatment × time during the isometric muscle strength test. Based on the Tukey post hoc analysis, the peak net force decreased statistically in the placebo (p = 0.045) and control conditions (p = 0.026), but not in the experimental condition (p = 0.121). In addition, all of the conditions studied obtained similar results in the countermovement vertical jump after exercise. (4) Conclusions: As a result, consumption of DSW seems to delay the failure of muscle function specifically in isometric exercises but does not improve performance in sports. Thus, DSW does not alter muscle capacity in a negative way; therefore, its consumption may be recommended.
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Affiliation(s)
- Jerónimo Aragón-Vela
- Department of Health Sciences, Area of Physiology, Campus “Las Lagunillas”, Building B3, University of Jaen, 23071 Jaén, Spain;
| | - Olivia González-Acevedo
- Institute of Nutrition and Food Technology “José Mataix”, Biomedical Research Center, University of Granada, 18016 Granada, Spain; (O.G.-A.); (J.F.R.H.)
| | - Juan Carlos De la Cruz-Márquez
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain; (F.J.R.R.); (M.M.M.)
| | - Francisco Javier Rojas Ruíz
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain; (F.J.R.R.); (M.M.M.)
| | - Manuel Martínez Marín
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain; (F.J.R.R.); (M.M.M.)
| | - Rafael A. Casuso
- Departamento de Ciencias de la Salud, Universidad Loyola Andalucía, 41704 Sevilla, Spain;
| | - Julio Plaza-Diaz
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria IBS.GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada
| | - Jesus F. Rodriguez Huertas
- Institute of Nutrition and Food Technology “José Mataix”, Biomedical Research Center, University of Granada, 18016 Granada, Spain; (O.G.-A.); (J.F.R.H.)
- Department of Physiology, School of Pharmacy, Campus de Cartuja s/n, University of Granada, 18071 Granada, Spain
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Li M, Xiao H, Asihaer Y, Wu Y, Hu Y. Suboptimal hydration status increases the risk of incident MASLD: A pediatric cohort study. J Hepatol 2024; 80:e145-e147. [PMID: 38036006 DOI: 10.1016/j.jhep.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Menglong Li
- Department of Child, Adolescent Health and Maternal Care, School of Public Health, Capital Medical University, China
| | - Huidi Xiao
- Department of Child, Adolescent Health and Maternal Care, School of Public Health, Capital Medical University, China
| | - Yeerlin Asihaer
- Department of Child, Adolescent Health and Maternal Care, School of Public Health, Capital Medical University, China
| | - Yingfeng Wu
- Department of Vascular Surgery, Beijing Luhe Hospital, Capital Medical University, China.
| | - Yifei Hu
- Department of Child, Adolescent Health and Maternal Care, School of Public Health, Capital Medical University, China; UNESCO Chair on Global Health and Education, Peking University, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, China.
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Pérez-Castillo ÍM, Williams JA, López-Chicharro J, Mihic N, Rueda R, Bouzamondo H, Horswill CA. Compositional Aspects of Beverages Designed to Promote Hydration Before, During, and After Exercise: Concepts Revisited. Nutrients 2023; 16:17. [PMID: 38201848 PMCID: PMC10781183 DOI: 10.3390/nu16010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Hypohydration can impair aerobic performance and deteriorate cognitive function during exercise. To minimize hypohydration, athletes are recommended to commence exercise at least euhydrated, ingest fluids containing sodium during long-duration and/or high-intensity exercise to prevent body mass loss over 2% and maintain elevated plasma osmolality, and rapidly restore and retain fluid and electrolyte homeostasis before a second exercise session. To achieve these goals, the compositions of the fluids consumed are key; however, it remains unclear what can be considered an optimal formulation for a hydration beverage in different settings. While carbohydrate-electrolyte solutions such as sports drinks have been extensively explored as a source of carbohydrates to meet fuel demands during intense and long-duration exercise, these formulas might not be ideal in situations where fluid and electrolyte balance is impaired, such as practicing exercise in the heat. Alternately, hypotonic compositions consisting of moderate to high levels of electrolytes (i.e., ≥45 mmol/L), mainly sodium, combined with low amounts of carbohydrates (i.e., <6%) might be useful to accelerate intestinal water absorption, maintain plasma volume and osmolality during exercise, and improve fluid retention during recovery. Future studies should compare hypotonic formulas and sports drinks in different exercise settings, evaluating different levels of sodium and/or other electrolytes, blends of carbohydrates, and novel ingredients for addressing hydration and rehydration before, during, and after exercise.
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Affiliation(s)
| | | | | | - Niko Mihic
- Real Madrid, Medical Services, 28055 Madrid, Spain; (J.L.-C.); (N.M.)
| | | | | | - Craig A. Horswill
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL 60608, USA;
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