Many people believe exercise has relationship with better sleep, but there often are complaints about exercise. Some they exercise to the point of exhaustion, but they would not sleep better that night.This attracts a scientist and she decided to examine more closely the relationship between exercise in the day and sleep in the night.What she and her colleagues found was published in The Journal of Clinical Sleep Medicine.
The researchers randomly assigned their volunteers either to remain inactive or to begin a moderate endurance exercise program, consisting of three or four 30-minute exercise sessions per week, generally on a stationary bicycle or treadmill, that were performed in the afternoon. This exercise program continued for 16 weeks.
At the end of that time, the volunteers in the exercise group were sleeping much more soundly than they had been at the start of the study. They slept, on average, about 45 minutes to an hour longer on most nights, waking up less often and reporting more vigor and less sleepiness. But had the novice exercisers experienced immediate improvements in their sleep patterns
Boring deep into the data contained in the exercising group’s sleep diaries and other information for the new study, Dr. Baron discovered that the answer to both questions was a fairly resounding no. After the first two months of their exercise program, the exercising volunteers (all of them women) were sleeping no better than at the start of the study. Only after four months of the program had their insomnia improved.
They also rarely reported sleeping better on those nights when they had had an exercise session. And perhaps most telling, they almost always exercised for a shorter amount of time on the days after a poor night’s sleep.
In other words, sleeping badly tended to shorten the next day’s workout, while a full-length exercise session did not, in most cases, produce more and better sleep that night.
No comments:
Post a Comment