Baking Soda is good for you, not only for your pool

Here’s a quote from this article http://www.mgwater.com/bicarb.shtml#helps

Bicarbonate helps physically active people combat fatigue
(news vol 3, no 1, May 2001)

An ingestion of 300 mg/kg of body weight of bicarbonate before exercising will help you reduce muscular fatigue and so increase the performance of short- term physical exercise. Thus drinking mineral water containing bicarbonate may contribute to this beneficial intake.

End of quote.

Just make sure you don't drink your pool water. :D

It's gonna spike your blood pressure though.