Exercise Intensity Vs. Duration

Exercise Intensity Vs. Duration Which is best for cardiovascular health, a session of intense exercise or long-duration effort? A study published in the Scandinavian Journal of Medicine & Science in Sports attempts to answer that question with 6 randomized tests on 21 recreationally active subjects. They ran for either 45, 90 or 180 minutes at an intensity that was 85% or 95% of individual anaerobic threshold. While both cardiac biomarkers were affected by exercise duration, only one of them was elevated by intensity.

True Strength Moment: This research is not meant to persuade you to focus exclusively on long distance running. It shows that different training protocols influence different aspects of your body in different ways. To become a well balanced athlete with strengths in a number of areas, you have to train differently all the time. Every workout doesn't necessarily have to be unique, but it can become boring and counterproductive to train the same way every day.
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