Excercise and Athletic Performance

Statistics tell us that a sedentary lifestyle without exercise has the same detrimental effect on health and longevity as smoking a pack of cigarettes a day. Countless studies have shown the significant health benefits of regular physical activity. Recent research suggests that moderate but consistent exercise may actually be more beneficial than intense workouts. The trouble is, most North Americans are not even doing enough to reach this plateau. The U.S. Surgeon General reports that 75% of American adults are physically inactive, and that 25% get virtually no exercise at all. Such people are at increased risk for the most common ailments and causes of death of our times. Inactivity as a lifestyle leads to heart disease, obesity, high blood pressure, diabetes, osteoporosis, stroke, depression and certain cancers. Fortunately, over the last decade interest in health prevention has skyrocketed. Many people are discovering the benefits of exercise: weight control, muscle strength, bone mass and strength, increased energy, reduced stress, greater endurance, more self esteem and longevity. One of the fastest growing areas is the exercise and fitness industry. Enrollment in gyms and aerobic classes, and sales of fitness supplements, bicycles, skates and blades have all reached new heights. This has raised several new questions, especially about how much exercise is enough and whether there is such a thing as too much. What can be done to push the limits of exercise safely? And of course amateur and professional athletes want to know how they can enhance their performance.

Even moderate exercise has a measurable impact on health and longevity. The Norwegian researcher G. Erikssen followed patients over a 22-year period and found that middle-aged men benefited from moderate fitness improvements and experienced lower risks of mortality from all causes. And it doesn't take extreme exertion to improve fitness. University of Washington doctor Rozenn Lemaitre recently showed that walking for at least one hour per week reduces the risk of heart attacks as much as highintensity physical activity.

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