Seasonal Changes in Heart Rate Variability in 11- to 13-Year-Old Girls
Heart rate variability (HRV) was assessed each quarter during a year in 11- to 13-year-old girls with a Valenta medical diagnostic system. The HRV was highest in winter and lowest in summer (in 12-year-old girls) and autumn (in 11- and 13-year-old girls), indicating seasonal changes in the degree of...
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Veröffentlicht in: | Human physiology 2005-07, Vol.31 (4), p.407-412 |
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