Somatotypes

Endomorph- more rotund
Mesomorph- muscular build
Ectomorph- lanky skinny

Physical maturity has a strong impact on performance...
Rapid growth is rapid motor performance
under matured girls tend to perform better-because of higher body fat
whereas early developing boys perform better

Aerobic Capacity

Children need fun to keep excersizing, than they don't even notice work...put them on the treadmill for 30 secs and they are out.