(AP Photo/Sang Tan) A woman exercises in a gym in central London, Thursday, Feb. 25, 2010. Some experts say intense exercise sessions could help people squeeze an entire week's workout into less than an hour.
Interval Training Can Cut Exercise Hours Sharply
MARCH 12, 2010Associated Press
"High-intensity interval training is twice as effective as normal exercise," said Jan Helgerud, an exercise expert at the Norwegian University of Science and Technology. "This is like finding a new pill that works twice as well ... we should immediately throw out the old way of exercising."
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