The Target: Total Fitness - The exercise tolerance factor

Fatigue places basic strictures on the human body. Exercise tolerance refers to an individual's ability to take part in a demanding sport or game, jog, do a series of exercises, or engage in some other activity without reaching the undue fatigue stage.

At the start-up stage of a fitness program, the beginner should make certain that all the exercises selected are adjusted to his or her own exercise tolerance level. That adjustment has both positive and negative sides: the exercises should not be too difficult, nor should any be chosen that do not make the body work sufficiently hard. Exercises that are too easy will not produce fitness and should be eliminated or made more difficult. Pulse rate provides a good indication of whether the body is being asked to do an appropriate amount of work.

Decreased heart rate usually comes with advancing age. At the same time the older person has decreased work capacity or exercise tolerance. But age is only one villain producing the decreased work capacity. Reduced elasticity in the blood vessels also affects physical performance.

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