work capacity

Adding intensity to an overstressed athlete is a recipe for burnout and injury, so be sure to find a balance.
Use these three pillars of training wisely to increase performance and reduce the chances of injury.
Simplicity isn't sexy, but it's the only "weird trick" you need to know.
This test was created for the military, but anyone can use it to measure his or her fitness level. It can also be used to test the clients at your gym.