Running stairs is a tough test of cardiovascular endurance.
Cardiovascular As the name suggests, cardiovascular endurance refers to the fitness of the heart. Specifically, it involves the ability of the heart, lungs, and circulatory system to supply oxygen toworkingmuscles during exercise. The harder the activity, the harder these organs work to keep upwith the increased demands. At some point, you reach a limit, which can be increased through smart, safe, and progressive cardiovascular endurance training. Typically, that means gradually increasing the intensity of activity while keeping the time the same time or extending the time or distance at the same intensity. Muscular Muscular endurance, on the other hand, involves the ability of muscle fibers to continuously produce force without fatigue. The simplest examples include howmany push-ups or sit-ups you can do in a row without stopping. At some point, your nerves will tire out, or your
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