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Professor, University of Marta Murcia Garaulet, in collaboration with Prof. Jose Maria Ordovas of Tufts University (Boston, USA), has been tested in an article that physical activity in the early evening can alter circadian rhythmicity.
The research, published in Chronobiology International, shows that for optimal health of the circadian system is important to do physical activity in the morning.
Physical exercise, the article notes, is one of the largest internal clock synchronizers and, with light and mealtime, able to set the time the peripheral clocks, which allows to reach a better state of health.
However, the authors, until now had not studied whether the time that physical activity is performed affects the quality of the usual circadian pattern and its relationship to health status underline.
In this regard, data from this research support the idea that sport overnight affects circadian rhythmicity, may counteract some of the benefits on health issues linked regular physical activity.
The survey results indicate that exercise in the morning improves circadian health, whereas physical activity at night is associated with a lower amplitude of the biological rhythm and with a delay of two hours in the central moment of sleep, when it is deeper and restorative.
These changes are accompanied by a greater "numbness" in the morning and other alterations characteristic of aging, disorders of previous research professor Garaulet associated with obesity and reduced weight loss when a diet is followed.
The study was conducted at the University of Murcia with the players of the women's rugby team Squalas of San Javier (Murcia), the body temperature was measured every 10 minutes in order to meet their circadian health.
To compare the results, the participants performed controlled physical activity (45 minutes of running) for seven days at 9:00 am, and the same intensity of exercise for seven days at 21:00.
Source: Universidad de Murcia
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