Cardiovascular Endurance Definition

Definition

Cardiovascular endurance (aerobic fitness) is your ability to keep going at a sustainable pace. It is built with long-ish easy work, not only all-out intervals.

How much

Most lifters do well with 2–4 hours a week of easy zone-2 style work: you can talk in sentences. Walking counts. One HIIT session can sit on top, not replace the easy minutes. Related: how often to train.

Reviewed September 2026. Not medical advice.