When it comes to reaching your fitness goals, heart-pumping cardio is the name of the game. Aerobic activity is any type of exercise that raises your heart rate and gets you breathing harder. The term “intensity” refers to how much energy your body exerts during the activity. An easy way to measure aerobic intensity is with the Talk Test.
Moderate-intensity: You’re able to talk, but not sing, during the activity.
Vigorous-intensity: You can’t say more than a few words without pausing for a breath.
Whenever beginning a new exercise routine, the key is to increase your activity level slowly. You need to feel comfortable doing moderate-intensity activities before you move on to more vigorous ones. Slowly replace those that take moderate effort, like brisk walking, with more strenuous exercises, like jogging.