“VO2 max is often overlooked because it sounds complicated, but it does not have to be,” Latham said. “If you are following a structured, well-designed workout, especially one that incorporates intervals at higher intensities, you are already improving it … Your heart rate may level off, but your VO2 max continues to climb.”
Article source: https://www.huffingtonpost.co.uk/entry/vo2-max-longevity_uk_6a2aa544e4b01046d716f655