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논문 기본 정보

자료유형
학술저널
저자정보
VINAI K. SINGH (Inderprastha Engineering College)
저널정보
장전수학회 Proceedings of the Jangjeon Mathematical Society Proceedings of the Jangjeon Mathematical Society(장전수학회 논문집) 제24권 제4호
발행연도
2021.10
수록면
503 - 510 (8page)

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The cardiovascular cost increases during prolonged exercise and we sought to establish the relationship between recreational marathoner's racing strategy,cardiovascular cost increase cardiac drift and performance.We started with looking for a trend in the speed time series (by Kendall's non-parametric rank correlation coefficient) in 280 runners(2:30-3:40 hrs) marathoners. We distinguished two groups,the one gathering the large majority of the runners(n=215,77%),who had a signi cant decrease of their speed during the race that appeared at the 26th km.We therefore named this group of runners the "fallers"one.The asymmetry indicator of the faller group runner's speed is negative, meaning that the average speed of this category of riders is below the median, indicating that they ran more than half marathon distance(56%) above their average speed before they "hit the wall" at the 26th kilometer. Furthermore,we showed that marathon performance was correlated with the amplitude of the cardiac drift (r=0.18,p=0.0018) but not with those of the increase in heart rate (r=0.01,p=0.80). In conclusion,we recommend utilizing the cardiac cost,which takes into account the running speed and that could be implemented in the future,on phone mobile application.

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