Fitness over the life course

If you ever wondered why your children or grand-children outpace you in physical exercise. Recent research has tested the differential levels of fitness and found a surprising answer. Children show more similarities to endurance athletes than to untrained adults in physical performance. Hence the physiological development over the life course is more likely to be of an U-shape rather than the common belief of a linear growth and only decline at older age.
The link to the study is here.