Among the options provided, "sweat rate" could not be reliably used to measure the intensity level of your activity. While sweat rate may reflect hydration and environmental conditions, it does not directly correlate with the intensity of physical exertion in the same way that the other methods do (rate of perceived exertion, target heart rate, and the talk test).
During a run, which of the following could not be used to measure the intensity level of your activity?
Rate of perceived exertion
Sweat rate
Target heart rate
The talk test
1 answer