. The last physiological variable to adapt is your sweat rate, which takes eight to 14 days to reach maximum efficiency. Other, faster responders include increased plasma volume, decreased sodium concentration in the blood, decreased heart rate while running
(upandrunning.co.uk).Forget about gadgets Heart-rate monitors, GPS watches, accelerometers that tell you how fast you're going - none of these glitzy products are really necessary for your first efforts. All you really need is a watch with a stopwatch function
.”He started by devising a simple experiment with a small group of subjects who ran or bicycled for 40 minutes at 76 per cent of their maximum heart rate, and then had blood samples drawn immediately after exercising. Next the blood samples were flown to a
