Sleep-Quality among Girls with Different Involvement in Competitive Sports during Fall in the Arctic Circle
Eight high-school girls participating in competitive sports and six non-participating girls living north of the polar circle recorded their sleep once a week during the Fall, including the period when the sun does not rise above the horizon. Sleep-quality scores were computed as the sum of answers i...
| Published in: | Perceptual and Motor Skills |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
SAGE Publications
1991
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.2466/pms.1991.73.3.883 http://journals.sagepub.com/doi/pdf/10.2466/pms.1991.73.3.883 |
| Summary: | Eight high-school girls participating in competitive sports and six non-participating girls living north of the polar circle recorded their sleep once a week during the Fall, including the period when the sun does not rise above the horizon. Sleep-quality scores were computed as the sum of answers identical to a preset “right” answer indicating good sleep-quality. Significant differences on sleep-quality between the two groups were found, but a significant influence of amount of daylight or exercise could not be confirmed. When sleep-quality was ranked during three periods through the Fall, the girls participating in competitive sports showed a trend of increasing sleep-quality and the nonparticipants a decreasing one. An explanation based on influence of exercise thresholds upon sleep-quality is presented. |
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