(1.College of Physical Education,South China Normal University,Guangzhou 510631,China;
2.Gatorade Sport Science Institute,Illinois,USA)Abstract: Dehydration affects not only temperature regulation,performance,but also normal cardiovascular functions.Usually,the negative effects induced by dehydration vary with dehydration levels.When a human body is gradually dehydrated during exercise,the environmental temperature is an important factor influencing cardiovascular functions.However,when a human body is well hydrated,this effect becomes not significant.Fluid replacement during exercise can prevent and correct dehydration,maintain and improve cardiovascular functions.It has beenalso suggested that the effect of fluid replacement on cardiovascular functionsis directly related to ingested volume,ingesting time and the composition of ingested beverage.
Key words: dehydration； fluid replacement； cardiovascular functions |
