[娛樂時尚] 間歇性訓練法減肥更快？

Does Interval Training Lead to Faster Weight Loss

Going to the gym and slogging it out for a half hour a day is the Health Blog's standard fitness M.O. As it turns out, though, we may be missing some benefits offered by interval training ─ short bursts of intense effort punctuated by periods of lower-intensity exercise.

Now, we're generally wary of fitness fads. But interval training has been around forever, though it's typically been used more by those at the hard-core end of the fitness spectrum. Now, NPR reports this morning, there's some interesting research into the benefits of the practice for those of us who are more moderate in our exercise habits.

In one four-month study, people who rode an exercise bike for 20 minutes and alternated between eight-second sprints and 12-second slow periods lost more fat than those who rode for 40 minutes at a steady pace, NPR says.

'The eight-second sprint is doable by all the groups we've looked at ─ old people, overweight people, everybody so far we've tested has been able to do it,' the researcher behind that study told NPR. 'And in the 20-minute bout, the actual hard exercise is only eight minutes, so it's not actually that much exercise.'

間歇性訓練法減肥更快？

每天去健身房拼命鍛鍊半小時是健康博客的標準健身祕訣。但是我們似乎忽視了間歇性訓練帶來的益處－－由低強度鍛鍊間隔開的多次短時爆發性運動。

總的來說現在我們對健身時尚很敏感。但是間歇性訓練一直都存在，雖然更多地被那些鐵桿健身愛好者所使用。美國國家公共電視臺(NPR)最近報道說，一些有趣的研究發現間歇性訓練對習慣於更爲溫和的健身方法的人們有一些好處。

NPR在報道中說，在一個爲期四個月的研究中，那些在20分鐘中交替做八秒全速運動和12秒慢速運動的人們消耗的脂肪比做40分鐘勻速運動的人們更多。

“八秒全速運動對我們觀察的所有小組－－包括老人，超重人士－－都不是問題。到現在爲止所有參加我們測試的人都可以做到，”一個研究組的工作人員告訴NPR，“在整個20分鐘的鍛鍊過程中，真正高強度的運動只有八分鐘。所以事實上運動量並不大。”