Sprinting When The Heat Is On

Sprinting When The Heat Is On So you're working sprint intervals on the stationary bike and the gym's manager really has the thermostat cranked up. Does it matter whether the air is dry or humid? A study published in the International Journal of Sports Physiology and Performance suggests there's no real difference between these two very different conditions.

Researchers had 11 team sports athletes take on an intermittent sprint cycling routine encompassing 20 sprints lasting 40 minutes. On one occasion, the room was 70 degrees with 48% humidity. Next training day, it was elevated to 93 degrees with 78% humidity. A final workout was performed in 104 degree dry heat at 33% humidity.

True Strength Moment: All subjects made it through the moderate temperature phase, but three couldn't complete the workout in either dry hot or hot and humid conditions. Peak power output remained constant in all conditions, and although physiological strain was higher in the heat, relative humidity didn't have an impact. It's best to keep the gym on the cool side, but when the heat's on, humidity isn't much of a factor.
Leave a Comment