People in Harrow are among the worst in London at taking regular exercise, according to a survey released last week.
Statistics produced by Sport England's Active Survey place Harrow sixth worst in the capital when it comes to exercise.
The survey found only 18.6 per cent of adults in the borough did at least 30 minutes of exercise three or more days a week - 11.2 per cent less than super-fit Richmond.
The survey was released to Parliament last week to show how participation levels in sports are suffering, despite London being awarded the Olympic Games in 2012.
More than 1,000 people in each of the 33 London borough's were questioned about their sporting habits and only Southwark, Bexley, Brent, Barking and Dagenham, and Newham fared worse.
The survey suggests that those living in Kenton and parts of Wealdstone exercise the least in Harrow. It also found that just 12 per cent of adults in the whole borough had taken part in organised competitive sport in the last year.
Councillor Chris Mote (Conservative), who is responsible for community and cultural services, argued this lack of exercise had little to do with Harrow Council's emphasis on fitness.
He said: "The council has invested £36million in a brand new state of the art leisure centre and associated skatepark.
"We are offering free swimming sessions to all children in the borough over the summer holidays and there are a range of leisure and fitness opportunities available at our summer university."
He added that children in particular were being targeted by the council when it came to exercise, in a bid to promote healthy living.
He said: "We have a raft of other initiatives to educate pupils in all Harrow schools and we have even set up specialist after-school clubs to help children with weight issues.
"There is always more to be done but we are confident we are getting a strong message across to our residents about the importance of healthy eating and exercise."
The Department of Health recommends adults do half an hour of exercise five times a week and Sport England's Active Survey is being used by central government to measure its aims of getting 2mil-lion more Britons doing this by 2012.