Season-Long Heart-Rate Variability Tracking Reveals Autonomic Imbalance in American College Football Players
| Autor: | Matthew W Martinez, Jeff R Allen, Michael R. Esco, Clay M Keith, Andrew A. Flatt |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Medical staff Universities business.industry Playoffs Football Physical Therapy Sports Therapy and Rehabilitation Autonomic Nervous System RESTING HEART RATE United States Time of day Heart Rate Internal medicine Autonomic imbalance medicine Cardiology Heart rate variability Humans Orthopedics and Sports Medicine Seasons Championship business College football |
| Zdroj: | International journal of sports physiology and performance. 16(12) |
| ISSN: | 1555-0273 |
| Popis: | Purpose: To track cardiac-autonomic functioning, indexed by heart-rate variability, in American college football players throughout a competitive period. Methods: Resting heart rate (RHR) and the natural logarithm root mean square of successive differences (LnRMSSD) were obtained throughout preseason and ∼3 times weekly leading up to the national championship among 8 linemen and 12 nonlinemen. Seated 1-minute recordings were performed via mobile device and standardized for time of day and proximity to training. Results: Relative to preseason, linemen exhibited suppressed LnRMSSD during camp-style preparation for the playoffs (P = .041, effect size [ES] = −1.01), the week of the national semifinal (P P = .005, ES = −1.16). As a combined group, increases in RHR (P R2 = .02–.77) while LnRMSSD trended downward (negative slopes, R2 = .02–.62) throughout the season. Preseason to postseason changes in RHR (r = .50, P = .025) and LnRMSSD (r = −.68, P Conclusions: Heart-rate variability tracking revealed progressive autonomic imbalance in the lineman position group, with individual players showing suppressed values by midseason. Attenuated parasympathetic activation is a hallmark of impaired recovery and may contribute to cardiovascular maladaptations reported to occur in linemen following a competitive season. Thus, a descending pattern may serve as an easily identifiable red flag requiring attention from performance and medical staff. |
| Databáze: | OpenAIRE |
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