The NYT published a follow up to the article on marathon training that gives suggestions on how to use glycerin on hot days for long (90+ min) runs.
The NYT published a follow up to the article on marathon training that gives suggestions on how to use glycerin on hot days for long (90+ min) runs.
Well this jumps out at me:
...Glycerin should be used with great caution, Dr. Martin says. It you use too much you can end up with excess fluid in your cells. The excess fluid in your brain can give you a headache, and excess fluid elsewhere can make you bloated. Glycerin should only be used for long runs, two hours or more, under conditions of high heat. It is useless in cooler weather. And anyone who tries it should start gradually with lower dilutions and be sure they can tolerate it before using it in a long race. That said, the formula is one tablespoon of glycerin in 36 ounces of water. You should sip it over one to two hours before you run. Dr. Martin discusses the technique in his book, "Better Training for Distance Runners," 2nd edition, published by Human Kinetics in 1997. The glycerin section is on pages 370 to 372...