Walking may not be enough on its own to produce significant health benefits, research suggests.

Researchers compared a 10,000-step exercise program with a more traditional fitness regime of moderate intensity, and they found improvements in fitness levels were significantly higher in the second group. They told an American College of Sports Medicine meeting that gentle exercise was not enough to get fit.

[Read](http://news.bbc.co.uk/2/hi/health/5371116.stm “Read the Story”) (BBC)