For instance, the Audi A8 not only has a 372 horsepower engine that provides exhilarating driving characteristics, but it also has an aluminum space frame that lowers vehicle weight considerably versus a steel chassis.

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With the weightlifting trials approaching, her main goal this week has been to shed nearly eight pounds from her 136-pound, 5-foot-3 frame to make her weight class. (At the trials, she will compete in the 58-kilogram class, which is about 127.6 pounds.) As a skeleton racer, she can afford to be a bit heavier.

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The weight tore calluses from their hands, and the frame kept tipping and slipping as they ran.

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Capps hit the weight room to add muscle to his 170-pound frame.

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Jackie also was struggling with her weight, at one point hitting 64 kg on a 157-cm frame.

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On its most literal level, it carries little weight when one accepts the belief that every stock reverts to its mean in every time frame.

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No one who looked at the 182 pounds I carried on my six-foot frame would have called me fat, but I was 30 pounds over my college weight and 20 pounds over my marriage weight.

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Jackson won't reach her goal weight of 164 pounds -- a healthy body mass index for her 5-foot-8 frame -- by her birthday in February.

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