Final answer:
Low intensity MET activities are those that are not strenuous on the body and mostly use aerobic metabolism, for example, slow walking and light household tasks.
Step-by-step explanation:
Activities that would qualify as the "low" classification of MET (Metabolic Equivalent of Task) intensity typically involve low intensity or skill based activities. These activities require less energy and are less strenuous on the body, generally meaning that aerobic metabolism is sufficient to supply enough ATP (adenosine triphosphate) for the muscles during these exercises. For instance, activities such as slow walking, leisure cycling, tai chi, and light household tasks would be considered low intensity. On the other hand, moderate and vigorous intensity exercises, as outlined by the 2018 Physical Activity Guidelines, would demand more energy and involve activities like brisk walking or running, which require a mix of both aerobic and anaerobic metabolism for ATP production.