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<span>a group in which they reach alarming rates. The sports culture, with its emphasize on optimal body size or shape for optimal performance, is many times an influencing factor in developing such a condition. Athletes are also at a higher risk than the rest of the population to suffer the harsh consequences of eating disorders. They already exercise heavily, so their bodies are depleted sooner and their health heavily tested and challenged. Athletes, along with their families and coaches, must recognize the problem and take timely action against eating disorders, not only because these can bring athletes to a state in which they can longer perform, but also because these conditions are deadly.</span>
Heart rate reserve is used when determining exercise heart rates. The Karvonen formula is used to calculate exercise heart rate at a given percentage training intensity.
