Keighley's public health team has hit out at controversial claims that regular moderate exercise is unlikely to prevent heart disease.

A study has alleged that half an hour of brisk walking five times a week will not stave off problems.

Researchers - who carried out a ten-year study, involving almost 2,000 men, in Wales - claim that only vigorous exercise such as jogging will reduce the risks.

But the findings have provoked anger among workers dedicated to helping Keighley people improve their health.

Lorna Palmer, Walking for Health co-ordinator, said: "We have been doing a lot of work in the community to promote physical exercise - through a range of activities from walking to dance - and this type of study just undoes a lot of what has been achieved.

"Some exercise is better than none. Even if you are not running, if you are getting out and walking it is going to benefit you.

"A sedentary lifestyle does increase the risk of health problems."

Her comments are echoed by Sheila Webb, director of public health at Airedale Primary Care Trust.

She added: "We are a sedentary nation and there is plenty of evidence that lack of physical activity leads to a range of health problems. Any activity is better than none. There is a lot to be said for lower levels of activity, which bring many benefits to a person's health and well-being.

"Individuals can then if they wish go on to higher levels of exercise."

Research in Keighley has shown that 29 per cent of people aged 50-70 take less than 30 minutes of brisk activity of any kind in a week. Of those, a quarter believed they were "fit" or "fairly fit".

Anyone wanting advice can contact the team on 01535 667613.