There are many health benefits to regular exercise, and building stamina for other parts of life is one of them. A body that has been kept moving on a regular basis is one that will continue to move further than one that has constantly been allowed to rest. For those who have decided that competition is a game they want to win, building stamina is often what will keep them in the race long past the time when those who have sat around will have to drop out.
Movement is an important part of keeping the body fit, but there are different benefits from using all parts of the body. For those who find they are winded shortly after beginning an afternoon stroll through the park, walking on a treadmill might help them feel better. Setting their sights on stepping along for a few miles during their exercise will help them enjoy that walk when they set out with friends for a picnic.
Lifting weights builds up muscles, but which ones will benefit most depends upon the type of workout chosen. If a person works out their upper body, they will be able to get more use out of their arms and core muscles of the torso. If they choose to compete in a weightlifting competition, they will do better than they would by using an exercise for their legs. Those who want to compete in distance running would do better if they concentrate on leg lifts.
Aerobic exercises are useful for those who find their body wants to quit shortly after any movement because it helps extend their capacity to take in oxygen. It is this one ingredient that feeds all their muscles that must be expanded, so it should be part of a routine workout. Being able to inhale deeply is a good way to be able to compete soundly, so even amateur competitors should include it to increase their stamina.