Since I'm nitpicking let me point out that powerlifters train for strength. Power is an altogether different (though related to a degree) muscular/neurological characteristic. Power would be more closely related to olympic weightlifters or sprinters/shot-putters etc. Endurance could also be broken into alactic/lactic/aerobic capacity which makes a huge difference at the margins where athletic excellence is made. Nits aside your description is 90% there.