Faculty of Education, Pontifical University of Salamanca, 37003 Salamanca, Spain.
Group of Investigation in Preventive and Lifesaving Activities (GIAPS), University of A Coruña, 15179 A Coruña, Spain.
Int J Environ Res Public Health. 2021 Mar 25;18(7):3407. doi: 10.3390/ijerph18073407.
The main objective of this study was to analyse the relationship between the performance in a maximum incremental test for lifeguards, the IPTL, and the effectiveness of a 200 m water rescue on the beach. Initially, 20 professional lifeguards carried out the IPTL in the pool and then they performed a 200 m water rescue on the beach. The maximum oxygen uptake (VO) in the IPTL was estimated. In both tests, heart rate (HR), blood lactate (La) and time achieved were measured. The VO estimated in the IPTL (VO) was 44.2 ± 4.7 mL·kg·min, the time reached in the IPTL (Time) was 726 ± 72 s and the time spent in the rescue (Time) was 222 ± 14 s. The results showed that the time reached in the pool (Time) was the best predictor variable of the performance in water rescue (Time) (R = 0.59; < 0.01). A significant correlation was also observed between the estimated maximum oxygen uptake and the beach rescue performance (R = 0.37; = 0.05). These results reveal that the IPTL, a maximum incremental test specific to lifeguards, allows the estimation of the effectiveness of a 200 m rescue on the beach.
本研究的主要目的是分析救生员最大增量测试（IPTL）中的表现与海滩 200 米水上救援的效果之间的关系。最初，20 名专业救生员在游泳池中进行了 IPTL，然后在海滩上进行了 200 米水上救援。估计了 IPTL 中的最大摄氧量（VO）。在这两项测试中，测量了心率（HR）、血乳酸（La）和达到的时间。IPT 中的估计 VO（VO）为 44.2 ± 4.7 mL·kg·min，IPT 中的达到时间（Time）为 726 ± 72 s，救援中的时间（Time）为 222 ± 14 s。结果表明，泳池中的达到时间（Time）是水上救援表现（Time）的最佳预测变量（R = 0.59； < 0.01）。还观察到估计的最大摄氧量与海滩救援表现之间存在显著相关性（R = 0.37； = 0.05）。这些结果表明，救生员特定的最大增量测试（IPTL）可用于估计 200 米海滩救援的效果。
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