Clipping of news on Brazilian Culture, Law and Citizenship
08/22/2013
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Physical exercise is good for health and sleep Photo: Ana Branco/22-04-2013
Evanston, USA - As a clinical psychologist and sleep researcher at Northwestern University, Kelly Glazer Baron often heard complaints from patients, which could work out to exhaustion, but would sleep better that night. Baron was surprised. Fan exercise for the treatment of sleeping problems and also a scientist, she decided to examine more closely the relationship between sweating and sleeping.
What she and her colleagues found, according to a study published last week in "The Journal of Clinical Sleep Medicine," is that the influence of daily exercise on sleep is more complicated than many expected and that short-term sleep may have more impact on the exercise of that exercise on sleep.
To reach the conclusion, Baron was based on data from a study of exercise and sleep published in 2010. For the experiment, the researchers gathered a small group of women (and one man) who received a diagnosis of insomnia. The volunteers had about 60 years and were sedentary.
Then the researchers randomly assigned the volunteers to continue inactive or starting a moderate exercise program, consisting of four 30-minute sessions of exercise per week, usually on a bicycle or treadmill, which were held during the afternoon. This program lasted 16 weeks.
At the end, the volunteers were assets sleeping more deeply than at baseline. They slept in medical, about 45 minutes to an hour more on most nights, woke less, had more energy and less drowsiness.
With this information, Baron found in the new study, after two months of exercise program, the volunteers slept better than at baseline. Only after four months of the program have improved insomnia problems. They rarely recorded sleep better on the nights they had done physical activity. And after a sleepless night, they exercised less.
In other words, sleep poorly tends to decrease the amount of activity on the next day as an exercise session that, in most cases, does not produce leads to sleep better and more simply.
At first glance, the results seem discouraging, said Baron. But she stressed that the volunteers had no trouble sleeping, unlike those who have insomnia and other sleep disorders, which tend to be "neurologically different."
- They have what we call a hyperarousal of the stress system - said. - A series of exercises on any given day is probably not enough and might even have a contrary result, since the exercise by itself is already a physical stressor.
But if the program is maintained, Baron says the series of exercise seems to begin to change the person's stress response. So if you have insomnia and do not you exercise, the researcher advises to start. But do not expect to go enjoy or even complete the workout after a sleepless night or to go to sleep better soon after exercise.
The process is more gradual and less than desired instant. But the benefits are.
Read more about this topic in http://oglobo.globo.com/saude/como-atividade-fisica-melhora-sono-9646943 # ixzz2ciORcYi9
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Source: The Globe - Online
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This article was translated by an automatic translation system, and was therefore not reviewed by people.