Colosio Alessandro L, Lievens Maarten, Pogliaghi Silvia, Bourgois Jan G, Boone Jan
Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy.
Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium; Center of Sports Medicine, Ghent University Hospital, Ghent, Belgium.
J Sci Med Sport. 2020 Dec;23(12):1208-1214. doi: 10.1016/j.jsams.2020.04.015. Epub 2020 Apr 27.
This study aimed at proposing a new heart rate (HR) method to track aerobic metabolism in soccer by: (i) validating a recently developed HR index (HR) in professional soccer players, (ii) comparing HR vs the most common HR parameters and (iii) testing the agreement between measured and estimated VO values using HR.
cross-sectional.
184 professional soccer players performed a step incremental running test on a treadmill while VO and HR were recorded. HR was calculated (actual HR/resting HR) and its relationship with VO was compared with the relationships with the metabolism of actual HR, net HR, and % of HR reserve. Finally, HR was used to predict VO=((HR·6)-5)·3.5) and measured and estimated VO were compared by 2W RM-ANOVA and Bland-Altman analysis.
HR/VO relationship explained 85% of the variability in data, showing a higher performance than actual HR (77%) and similar values to the other parameters. Measured and estimated VO were not significantly different ≤14kmh, whereas at speeds ≥14kmh measured VO was higher than estimated VO. Finally, measured and estimated VO were highly correlated (R=0.85, p=0.000), and showed no significant bias (bias=-1.03, z=-0.69, precision=3.75mlkgmin).
We validated the HR/VO relationship in professional soccer players. HR showed better agreement with metabolism than actual HR and similar agreement to the other HR parameters. HR allowed to estimate VO, but at very high-intensity HR underestimated VO. Future studies should test this in real game conditions. HR could offer a time-efficient and easy-to-use "field" method to monitor aerobic metabolism in soccer.
本研究旨在提出一种新的心率（HR）方法来追踪足球运动中的有氧代谢，具体包括：（i）在职业足球运动员中验证最近开发的心率指数（HR）；（ii）比较HR与最常用的心率参数；（iii）使用HR测试测量的和估计的VO值之间的一致性。
横断面研究。
184名职业足球运动员在跑步机上进行递增负荷跑步测试，同时记录VO和HR。计算心率（实际心率/静息心率），并将其与VO的关系与实际心率、净心率和心率储备百分比的代谢关系进行比较。最后，使用心率来预测VO = ((心率·6) - 5)·3.5)，并通过双因素重复测量方差分析和布兰德-奥特曼分析比较测量的和估计的VO。
HR/VO关系解释了数据中85%的变异性，表现优于实际心率（77%），与其他参数的值相似。在速度≤14km/h时，测量的和估计的VO没有显著差异，而在速度≥14km/h时，测量的VO高于估计的VO。最后，测量的和估计的VO高度相关（R = 0.85，p = 0.000），且无显著偏差（偏差 = -1.03，z = -0.69，精密度 = 3.75ml/kg/min）。
我们在职业足球运动员中验证了HR/VO关系。HR与代谢的一致性优于实际心率，与其他心率参数的一致性相似。HR能够估计VO，但在非常高强度时会低估VO。未来的研究应在实际比赛条件下进行测试。HR可为监测足球运动中的有氧代谢提供一种省时且易于使用的“现场”方法。
