Burning off a burger is a tall order - scaling Two IFC, in fact

A gym is trying to encourage members by telling them they would have to walk almost to the top of Hong Kong's tallest skyscraper to burn off a Big Mac meal.

Health professionals say although the information being given out by Fitness First is not scientifically accurate, the comparisons are reasonable.

The gym chain claims a person who has eaten a Big Mac meal would need to climb the equivalent of 82 of Two IFC's 88 floors to burn off the calories. A McDonald's Big Mac meal - comprising the iconic burger, medium fries and cola - has an energy content of 982kcal (kilocalories). The gym says it is also the equivalent of running on a treadmill for 90 minutes, or doing 245 consecutive push-ups.

The estimates are made by Fitness First based on nutritional information on McDonald's Hong Kong website, and are part of the gym's promotion highlighting its new partnership with a local sandwich bar chain.

An independent fitness expert agreed that the estimates were reasonable. 'It's not very scientific, but it's not a bad estimate,' said Stephen Wong Heung-sang, an associate professor in Chinese University's department of sports science and physical education.

He added that the number of calories burned would depend on an individual's metabolism and the speed at which they exercised.