Impact of Preparticipation Hypohydration on Cognitive Performance and Concussion-like Symptoms in Recreational Athletes
Strüven A, Brunner S, Weis G, Cohrdes Y, Lackermair S, Schlichtiger J, Kellnar A, Lackermair K
Nutrients · 0 citations
How it was studied
- Design
- Controlled clinical trial (classified by our AI screen)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Independent funding
Based on full-text disclosure statement.
Publication
- Published
- 2023-10-18 · Nutrients · vol. 15 · issue 20 · p. 4420
- Publisher
- Multidisciplinary Digital Publishing Institute
- Cited
- 2 citations · more than 55% of similar papers · 0.3× the field average
- References
- 46 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Thermoregulation and physiological responses · Body Composition Measurement Techniques · Electrolyte and hormonal disorders
- Keywords
- Athletes, Concussion, Cognition, Medicine, Physical therapy, Recreation, Psychology, Physical medicine and rehabilitation, Injury prevention, Poison control, Psychiatry, Environmental health, Biology
- MeSH
- humans, brain concussion, dehydration, electrolytes, cognition, athletes
8 authors
From DE
- Anna Katharina StrüvenLudwig-Maximilians-Universität München
- Stefan BrunnerLudwig-Maximilians-Universität München
- Georges WeisLudwig-Maximilians-Universität München
- Yannick CohrdesLudwig-Maximilians-Universität München
- Stephan LackermairKrankenhaus Barmherzige Brüder
- Jenny SchlichtigerLudwig-Maximilians-Universität München
Abstract
Background
Sports-related concussion is a relevant risk of contact sports, with several million cases per year worldwide. Prompt identification is crucial to prevent complications and late effects but may be impeded by an overlap with dehydration-associated impairment of cognitive function. Researchers have extensively studied the effects of pronounced dehydration in endurance sports, especially in the heat. However, little is known about the effects of isolated and mild dehydration.
Methods
Healthy recreational athletes underwent a standardized fluid deprivation test. Hypohydration was assessed by bioelectrical impedance analysis (BIA) and laboratory testing of electrolytes and retention parameters. Participants underwent cardiopulmonary exercise testing (CPET) with a cycle ramp protocol. Each participant served as their own control undergoing CPET in a hypohydrated [HYH] and a euhydrated [EUH] state. Effects were assessed using a shortened version of Sport Concussion Assessment Tool 3 (SCAT3).
Results
Fluid deprivation caused a mild (2%) reduction in body water, resulting in a calculated body mass loss of 0.8% without alterations of electrolytes, serum-osmolality, or hematocrit. Athletes reported significantly more (1.8 ± 2.2 vs. 0.4 ± 0.7; p p p = 0.02). No relevant differences were presented for items of memory and concentration.
Conclusions
Mild dehydration caused relevant alterations of concussion-like symptoms and balance in healthy recreational athletes in the absence of endurance exercise or heat. Further research is needed to clarify the real-life relevance of these findings and to strengthen the differential diagnosis of concussion.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
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