与精英公开水域游泳运动员强度阈值相对应的训练主观用力程度断点
Session RPE Breakpoints Corresponding to Intensity Thresholds in Elite Open Water Swimmers.
作者信息
Ieno Cristian, Baldassarre Roberto, Quagliarotti Claudio, Bonifazi Marco, Piacentini Maria Francesca
机构信息
University of Rome Foro Italico, 00135 Rome, Italy.
Italian Swimming Federation 2, 00135 Rome, Italy.
出版信息
J Funct Morphol Kinesiol. 2020 Mar 17;5(1):21. doi: 10.3390/jfmk5010021.
This study aims to assess the correspondence between session rating of perceived exertion (sRPE) breakpoints with both the first lactate threshold (LT1) and the second lactate threshold (LT2) in elite open water swimmers (OWS). Six elite OWS of the National Olympic Team specialized in distances between 5 and 25 km participated to the study. OWS performed a set of 6 times 500 m incremental swimming step test during which blood lactate concentration (BLC), split time (ST), stroke frequency (SF), and rating of perceived exertion (RPE) were collected. To assess the corresponding breakpoints, we considered LT1 as the highest workload not associated with rise in BLC and LT2 as the increase of 2mM above LT1. According to the LT1 and LT2, the identified zones were: Z1 ≤3, Z2 between 4 and 6, Z3 ≥ 7. In conclusion, the intensity zones determined for OWS resulted different from what previously reported for other endurance disciplines.
本研究旨在评估精英公开水域游泳运动员（OWS）的主观用力程度（sRPE）断点与第一乳酸阈值（LT1）和第二乳酸阈值（LT2）之间的对应关系。国家奥林匹克队的六名专门从事5至25公里距离的精英OWS参与了该研究。OWS进行了一组6次500米递增游泳阶梯测试，在此期间收集了血乳酸浓度（BLC）、分段时间（ST）、划水频率（SF）和主观用力程度（RPE）。为了评估相应的断点，我们将LT1视为与BLC升高无关的最高工作量，将LT2视为比LT1高2mM的增加量。根据LT1和LT2，确定的区域为：Z1≤3，Z2在4至6之间，Z3≥7。总之，为OWS确定的强度区域与先前报道的其他耐力项目不同。
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