Fitness - A Key To Weight Loss

健康--减肥的关键

　　Perhaps like most Americans you have some extra pounds to shed. You may even have tried a fad diet or two, but found yourself right back where you started. The key to weight loss is regular physical activity. And surprisingly, you don't have to give up eating or make the gym your second home to see long-term, positive effects.

　　或许象多数美国人那样，您需要减肥。流行的节食方法对您可能并不起作用。下面将告诉您减肥的秘诀：不需要放弃美食，不用整天呆在健身房里运动，只要......

One: Aerobic Activity

一、有氧运动

　　Your body needs a certain amount of energy to maintain basic functions such as breathing, blood circulation and digestion. The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate.

　　人体往往需要一定的能量，需要这些能量来......

　　Any time you are active, additional energy is required. It is obtained from glycogen (carbohydrates) and fat stored in the blood, liver, and muscles. The key to losing weight is to draw on the fat rather than on the carbohydrate reserves.

　　一旦运动的时候，需要的能量就会更多。是单纯消耗能量就能有效减肥吗？减肥的关键是......

　　Which of the two energy sources you use depends on the intensity and duration of your activity. The higher the intensity, the more your body will pull from the stored carbohydrates. The lower the intensity, the more your body will rely on fat as its fuel.

　　额外所需的能量主要来自人体储存的两类资源，消耗哪类能量资源取决于......

　　Aerobic exercise (any activity that increases oxygen intake and heart rate) is most effective for weight loss. When you perform aerobic activities you repeatedly" title="ad.反复地；再三地">repeatedly contract large muscle groups such as your legs and arms. Walking, running, rollerblading, swimming, dancing, and jumping jacks are all forms of aerobic activity.

　　有氧运动是最有效的减肥运动，有氧运动项目包括......

　　Surprisingly, if your aerobic activity is low to moderatelyintense and of long duration, you will burn more fat than if you had participated in a short burst of high-intensity exercise. In short, a brisk 30-minute walk will burn fat while a 100-yard sprint will burn glycogen.

　　有氧运动效果很神奇，30分钟轻快漫步消耗的能量相当于......

减肥秘诀之二：消耗脂肪的力量训练

Two: Strength Training　 减肥之二：力量训练

Strength training or resistance exercises use your existing muscular strength to improve muscle mass and burn fat. The result is more lean muscle mass. Increased muscle mass provides you with a bonus: your body burns more calories both while you are active and when you are at rest.

　　力量训练将运用您的现有肌肉力量锻炼肌肉，消耗脂肪。结果您将获得......。这样做的好处在于：......

Your body shape becomes more youthful with strength training and as your strength and energy increase you will feel more empowered physically and emotionally. While you won't forget your weight loss goals, you may find yourself exercising just for the fun of it.

　　通过力量锻炼，您的体形变得更加年轻。而当您的体力和活力增加时，您将感觉到......。虽然您没有忘记原来的减肥目标，可您会发现您进行锻炼只是为了......

Rowing, climbing stairs, and calisthenics like pushups, are strength training exercises. Many strength-training exercises employ dumbbells and weights to help work your muscles. As with all new exercises, begin slowly. The exercises are repeated over time until they become comfortable. When you are ready, you can intensify your workout by first adding sets of repetitions and light weights and later by graduating to heavier weights.

　　划船、爬楼梯，以及如伏地挺身等运动都是力量锻炼。这类锻炼多借助......。和所有新开展的锻炼一样，开始时应该...... )
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