"Endurance (also called sufferance) is the ability for humans and animals to exert themselves through aerobic or anaerobic exercise for relatively long periods of time. The definition of 'long' varies according to the type of exertion - minutes for high intensity anaerobic exercise, hours or days for low intensity. Training for endurance can have a negative impact on the ability to exert strength unless an individual also undertakes resistance training to counteract this effect."
http://en.wikipedia.org/wiki/Endurance

--------------------------------------------------
Note added at 18 mins (2008-08-12 07:50:26 GMT)
--------------------------------------------------

"A három állóképességi sportág (úszás,kerékpár,futás) kombinációja lehet vé tette, hogy az állóképesség. határai teljesen új dimenziókba kerüljenek."
apps.boon.hu/download/emtippek/a_triatlon_t_rt_nete..pdf

The Leading Providers of Endurance Sports Training Videos for Triathlon, Cycling, Swimming, Running, Strength Training and more. ...
www.endurancefilms.com