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04 May 2011

Exercise turns sweat into watts

Fitness fanatics are getting more out of their workout than just exercise - they are turning their sweat into electricity.

Reddening, a rivulet of sweat running across her cheek, Amy McCullough hunched over the stationary bike, pumped her legs like crazy and began producing serious power, enough watts to run a flat-panel TV and a ceiling fan.

The transient burst was a personal best for the 43-year-old legal aid lawyer who works out five days a week at a storefront fitness centre in north Portland, US, where members on exercise machines fitted with compact generators can burn calories and generate electricity at the same time.

 
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