Fluid and Electrolyte Balance in Ultra-Endurance Sport

2001 ◽  
Vol 31 (10) ◽  
pp. 701-715 ◽  
Author(s):  
Nancy J. Rehrer
2004 ◽  
Vol 36 (Supplement) ◽  
pp. S180
Author(s):  
Stavros A. Kavouras ◽  
Costas Anastasios Anastasiou ◽  
Katerina Panagiotis Skenderi ◽  
Yiannis Tsekouras ◽  
Markos Echegaray ◽  
...  

2020 ◽  
Vol 13 (3) ◽  
pp. 197-214
Author(s):  
Nicolò Paternoster ◽  
Enrico Baggio ◽  
Ettore Pelosi

This review aims to investigate the physiological mechanisms that underlie the hydro-electrolyte balance of the human body and the most appropriate hydration modalities for individuals involved in physical and sports activities, with a focus on ultra-endurance events. The role of effective hydration in achieving optimal sports performance is also investigated. An adequate pre-hydration is essential to perform physical and sporting activity in a condition of eu-hydration and to mantain physiologic levels of plasma electrolyte. To achieve these goals, athletes need to consume adequate drinks together with consuming meals and fluids, in order to provide an adequate absorption of the ingested fluids and the expulsion of those in excess through diuresis. Therefore, there are important differences between individuals in terms of sweating rates, the amount of electrolytes loss and the specific request of the discipline practiced and the sporting event to pursue.


2004 ◽  
Vol 36 (Supplement) ◽  
pp. S180
Author(s):  
Stavros A. Kavouras ◽  
Costas Anastasios Anastasiou ◽  
Katerina Panagiotis Skenderi ◽  
Yiannis Tsekouras ◽  
Markos Echegaray ◽  
...  

2021 ◽  
Author(s):  
Nicholas B. Tiller ◽  
Kirsty J. Elliott-Sale ◽  
Beat Knechtle ◽  
Patrick B. Wilson ◽  
Justin D. Roberts ◽  
...  

2020 ◽  
Vol 134 (19) ◽  
pp. 2581-2595
Author(s):  
Qiuhong Li ◽  
Maria B. Grant ◽  
Elaine M. Richards ◽  
Mohan K. Raizada

Abstract The angiotensin-converting enzyme 2 (ACE2) has emerged as a critical regulator of the renin–angiotensin system (RAS), which plays important roles in cardiovascular homeostasis by regulating vascular tone, fluid and electrolyte balance. ACE2 functions as a carboxymonopeptidase hydrolyzing the cleavage of a single C-terminal residue from Angiotensin-II (Ang-II), the key peptide hormone of RAS, to form Angiotensin-(1-7) (Ang-(1-7)), which binds to the G-protein–coupled Mas receptor and activates signaling pathways that counteract the pathways activated by Ang-II. ACE2 is expressed in a variety of tissues and overwhelming evidence substantiates the beneficial effects of enhancing ACE2/Ang-(1-7)/Mas axis under many pathological conditions in these tissues in experimental models. This review will provide a succinct overview on current strategies to enhance ACE2 as therapeutic agent, and discuss limitations and future challenges. ACE2 also has other functions, such as acting as a co-factor for amino acid transport and being exploited by the severe acute respiratory syndrome coronaviruses (SARS-CoVs) as cellular entry receptor, the implications of these functions in development of ACE2-based therapeutics will also be discussed.


Author(s):  
Paola Rodriguez-Giustiniani ◽  
Nidia Rodriguez-Sanchez ◽  
Stuart D.R. Galloway

Author(s):  
Chloé Lavoué ◽  
Julien Siracusa ◽  
Émeric Chalchat ◽  
Cyprien Bourrilhon ◽  
Keyne Charlot

An amendment to this paper has been published and can be accessed via the original article.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
A Markovich ◽  
O Mironova

Abstract Funding Acknowledgements Type of funding sources: None. Background Regular physical activity is an important component of therapy for most сardiovascular diseases and is associated with reduced cardiovascular and all-cause mortality. The promotion of the physical activity and regular exercise is an important preventive measure that affects the prognosis. Purpose To assess the awareness of the prevalence of cardiovascular disease in exercising population and its influence on the safety of the patients and healthy adults among coaches and people actively engaged in sports activities. Methods An open non-randomized observation was conducted. The questionnaire created by our team included 45 questions about cardiovascular diseases and sport. 111 athletes and coaches aged from 19 to 46 were enrolled in the study. 61,5% (68) are men and 38,5% (42) of the respondents are women. 30,3% (33) of the respondents are coaches. 45,5% (15) of them have over 5 years of coaching experience. 44% (48) of all respondents prefer endurance sport, 25,7% (28) train strength exercise. 63,6% (70) train 3-8 hours per week, 12,7% (14 [7 women and 7 men]) train more than 8 hours each week. Results 18,5% (20 [6 women and 14 men]) think that ECG is enough for screening for cardiovascular diseases. 20% (4) of them are coaches. Only 69,5% (77) of all respondents know about treadmill test. And 41,6% (32/77) of them know about the necessary screening for arrhythmogenic condition. 13% (10/77) of them train more than 8 hours per week. And only 27,3% (21/77) of people who know about treadmill test, passed it themselves. Also 21,6% (24) of all respondents think that any episode of arrhythmia is the  contraindication for any sport. But 96,4% (107) of the respondents know that it is necessary to regularly screen the cardiovascular system, even in the absence of complaints. 9% (10) of the interviewed think that diet is not important for people with cardiovascular diseases. And 18,9% (21) of the respondents don’t know about the effect of electrolytes on the body and the work of the heart muscle. Only 53,2% (59 [21 women and 38 men]) of the respondents trust the doctors more than coaches or themselves. And this is one of the reasons why it is necessary to talk about the basic principles of sports cardiology not only to doctors. 8,1% (9) of the respondents have never heard about any cases of sudden death of an athlete during training or at competitions due to «heart problems». 63,6% (21) of the coaches would not train a person who has suffered a heart attack. 71,8% (56) of the sportsmen would like to return to training after a heart attack. Conclusions Despite the fact that most people prefer a sedentary lifestyle, high-intensity fitness and long-distance endurance sport is getting more popular. Our survey proves the relatively low level of education about the underlying health conditions and possible risks associated with sports not only among  athletes but  professional coaches as well. There are no conflicts of interest to declare.


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