2015-4-17 16:34:51



Study found vigorous activity offers 'significant benefits for longevity'
Jogging, aerobics or competitive tennis was better than gentle exercise
Health bodies should change their guidance to recommend tough exercise
Even people with diabetes and obesity benefit from breaking into a sweat
Working up the occasional sweat while exercising in middle age will help you live longer than just going for a daily stroll, research suggests.
A major study found those who undertook even the odd period of vigorous activity were more likely to avoid an early death than those who stuck to only moderate exercise.
Even those who have heart disease or diabetes would benefit from exercise that makes them puff and sweat, researchers said – although they warned them to consult a doctor first.
The findings call into question NHS guidelines which suggest the recommended weekly 150 minutes of moderate exercise for adults is just as good as 75 minutes of vigorous activity.
The Australian scientists who carried out the study said undertaking any kind of exercise is important – but strenuous exercise is far more beneficial than a gentle walk.
They found those who regularly get themselves out of breath through exercise were up to 13 per cent less likely to have an early death than those who only undertake moderate activity.
The researchers monitored 204,542 people aged 45 to 75 for six years. They compared those who engaged in only moderate activity – such as gentle swimming, social tennis, or household chores – with those who included at least some vigorous activity, such as jogging or aerobics.
Their results, in the medical journal JAMA Internal Medicine, reveal that mortality rates for those who said less than 30 per cent of their exercise was vigorous, was 9 per cent lower than those who reported doing no vigorous activity. For those whose exercise routine was vigorous for more than 30 per cent of the time, the rate of mortality was reduced even more, by 13 per cent.
Lead author Dr Klaus Gebel from James Cook University said: ‘The benefits of vigorous activity applied to men and women of all ages [studied], and were independent of the total amount of time spent being active.’
来自詹姆斯?库克大学的首席作家Klaus Gebel博士表示:“剧烈活动的益处适用于所有年龄的男女,而不受剧烈活动的时间长短影响。”
Co-author Dr Melody Ding, from the University of Sydney, said the World Health Organisation, NHS and health authorities in the US and Australia should consider
changing their advice. Each organisation subscribes to the same guidelines, that 150 minutes of gentle exercise each week is as good as 75 minutes of intense running.
来自悉尼大学的合著者Melody Ding博士表示,世界卫生组织,NHS(英国国家医疗服务体系)和美国、澳大利亚卫生部门都应该考虑改变建议。每个组织都赞同同样的指导方针,认为每周150分钟的温和运动与75分钟的剧烈跑步效果同样好。
Dr Ding said: ‘It might not be the simple two-for-one swap that is the basis of the current guidelines.
Our research indicates that encouraging vigorous activities may help to avoid preventable deaths at an earlier age.’
Dr Gebel added: ‘Our research indicates even small amounts of vigorous activity could help reduce your risk of early death. Previous studies indicate that interval training, with short bursts of vigorous effort, is often manageable for older people, including those who are overweight or obese.’