Association between the Rating Perceived Exertion, Heart Rate and Blood Lactate in Successive Judo Fights (Randori)
Asian Journal of Sports Medicine: 4 (2); 125-130
February 22, 2013
Article Type: Research Article
August 30, 2012
February 14, 2013
B H, Massua
L M, Andreato
L V, Marinho
B F, Miarka
B, et al. Association between the Rating Perceived Exertion, Heart Rate and Blood Lactate in Successive Judo Fights (Randori),
Asian J Sports Med.
Online ahead of Print
This study aims to investigate the association between the rating of perceived exertion (RPE), heart rate (HR) and the blood lactate concentration ([La]) in successive judo fight simulations ( randori).
Ten athletes participated in the study (age: 25.62.1 years; stature: 1.750.07 m; body mass: 75.614.9kg; %BF: 11.57.8%; practice: 14.56.2 years) and completed 4 judo fight simulations (T1 to T4) with duration of 5 min separated by 5 min passive recovery periods. Before each randori, [La] and HR were collected, and after each randori, the same measures and the RPE (CR-10 scale) were collected.
Significant correlations were observed between: (1) CR-10 and HR (T2: r =0.70; T3: r =0.64; both, P<0.05); (2) ?CR-10 and ?[La] (T1-T2: r = .71, P< 0.05; T2-T3: r =0.92, P<0.01; T3-T4: r =0.73, P<0.05). Moreover, significant differences were noted in the behavior of the HR between the 2 nd (T2) and 3 rd (T3) judo fight simulations ( P<0.05).
The use of CR-10 in the evaluation process, as well as in deciding the load of training in judo, should be done with caution.
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