Factors that Influence Heart Rate during Outdoor Training In
addition to exercise intensity and your level of aerobic
fitness, the following factors affect your heart rate during
outdoor training : Activity. Heart rate can change across
activities, due to different muscle mass involved, level of
experience and technical proficiency. Running typically elicits
the highest maximum heart rate during a stress test, whereas
cycling and paddling maximum heart rates can be 10-15 beats
lower during a similar test. This means that you may need to
adjust your training heart rate intensities by 5-10 beats for
activities other than running. Heat and Humidity. Temperature
and humidity will influence your heart rate. As the environment
gets warmer and more humid, heart rate will gradually increase
throughout your activity, even if your pace doesn't change. This
is due to your "air-conditioning" and level of hydration. You
produce a lot of energy in the form of heat when you move and
this heat needs to be dissipated, typical