In an increasingly complex business environment, leaders are searching for an edge. Endurance training is emerging as an unlikely, but powerful, leadership advantage.

Standing endurance test after 60: A CSCS coach shares 4 no-rest drills to prove elite stamina and build it safely.

Walking endurance exercises after 65: CSCS Jarrod Nobbe shares 5 moves to build stamina, strength, and steadier strides.

Training for an ultra-endurance sport, which includes ultramarathons and ultra-cycling, means training your stomach, as well.