A study found that e-cigarettes reduce exercise capacity to a similar degree as regular cigarettes.
On the 8th (local time), Dr. Azmi Faisal’s team at Manchester Metropolitan University in the UK announced the results of an experiment comparing exercise capacity between e-cigarette smokers, regular cigarette smokers, and non-smokers at the European Respiratory Society (ERS) conference held in Vienna, Austria.
The researchers measured the exercise capacity of 60 people in their 20s with normal lung function while the participants exercised on a stationary bicycle, reaching maximum heart, lung, and muscle responses.
Of these, 20 were non-smokers with no smoking experience, 20 had smoked e-cigarettes for at least two years, and 20 had smoked regular cigarettes for at least two years.
The study results showed that the maximum exercise capacity of e-cigarette smokers was 186 watts (W), which was significantly lower than that of non-smokers (226 W). It was similar to that of regular cigarette smokers (182 W), and there was no significant difference.
The average oxygen consumption per minute at maximal exercise volume was similar for e-cigarette smokers and regular cigarette smokers at 2.7 liters per minute and 2.6 liters per minute, respectively, but was lower than that of non-smokers (3 liters per minute).
Blood and ultrasound tests also showed that both e-cigarette smokers and regular cigarette smokers showed signs of poorer vascular function than non-smokers. They also showed higher blood lactate levels, a sign of muscle fatigue.
“All the participants were young men with no signs of lung damage, but both e-cigarette and traditional cigarette smokers showed marked hyperventilation and greater muscle fatigue throughout the cycling exercise,” said study lead author Dr. Azmi Faisal. “This suggests that e-cigarettes are no better than traditional cigarettes.”
[서울=뉴시스]
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2024-09-13 19:36:35