Dynamic Changes in Heart Rate Variability Metrics of Elite Skeleton Athletes during Competition Week
OBJECTIVE:This study aims to meticulously analyze the variations in heart rate variability(HRV)for 8 consecutive days among three male skeleton athletes competing in the World Championships.By correlating these HRV metrics with specialized athletic performance,the study delves into the interconnectedness between HRV and athletes'competitive states,offering a valuable reference for evaluating their overall performance.RESULTS:The study identifies a highly negative correlation(P<0.01)between the sliding time of skeleton athletes and the root mean square of successive differences(RMSSD)in adjacent RR intervals,as well as the standard deviation of all RR intervals(SDSD).Additionally,a significant negative correlation(P<0.05)is noted with high-frequency power(HF).Athletes in optimal competitive states exhibit a distinctive pattern in the RMSSD indicator,characterized by an initial increase,followed by a decline,and subsequent resurgence.SUGGESTIONS:RMSSD,SDSD,and HF emerge as pivotal metrics warranting attention in the evaluation of skeleton athletes'competitive states.Notably,when athletes display heightened pre-competition parasympathetic nervous system activity,it positively contributes to achieving superior performance.