<span>VO2 max is considered to be the most valid measure of cardiorespiratory fitness. It measures the capacity of the heart, lungs, and blood to transport oxygen to the working muscles, and measures the utilization of oxygen by the muscles during exercise. One way to test is using the Rockport Fitness test.</span>
That is not up to the mom it's up to Emily I think because not being social can hurt her in the future and not working in groups she couldn't do as well as others who work good in groups.