Fluid replacement guidelines issued by, among others, the American College of Sports Medicine have always been questionable from an evolutionary perspective.
Now Professor Tim Noakes in the British Journal of Sports Medicine (2006, 40) says that the case against fluid replacement guidelines was proven over 20 years ago. A new study using telemetry to monitor hydration and temperature status found that the athletes own body adequately regulated temperature and found no relationship between hydration status and temperature. Temperature and measures of dehydration (sodium and urine concentration) stayed within normal ranges. Even large losses of fluid do not lead to heat illness.
As if the body would not protect itself given its sophisticated homeostatic mechanisms; mechanisms so complex they are still not fully understood. It is a grandious claim to say that research or sports products can improve these evolved homeostatic mechanisms that serve not only we homo sapiens, but all mammals.
Professor Noakes smacks down the guidelines as “linked to an extensive marketing campaign, directed by the sports drink industry.”
Fluid replacement guidelines issued by, among others, the American College of Sports Medicine have always been questionable from an evolutionary perspective.
Now Professor Tim Noakes in the British Journal of Sports Medicine (2006, 40) says that the case against fluid replacement guidelines was proven over 20 years ago. A new study using telemetry to monitor hydration and temperature status found that the athletes own body adequately regulated temperature and found no relationship between hydration status and temperature. Temperature and measures of dehydration (sodium and urine concentration) stayed within normal ranges. Even large losses of fluid do not lead to heat illness.
As if the body would not protect itself given its sophisticated homeostatic mechanisms; mechanisms so complex they are still not fully understood. It is a grandious claim to say that research or sports products can improve these evolved homeostatic mechanisms that serve not only we homo sapiens, but all mammals.
Professor Noakes smacks down the guidelines as “linked to an extensive marketing campaign, directed by the sports drink industry.”