Author/Authors :
Branco, Braulio H.M Martial Arts and Combat Sports Research Group of Physical Education and Sport School - University of São Paulo, Brazil , Massuça, Luis M Higher Institute of Police Sciences and Internal Security, Lisbon, Portugal , Andreato, Leonardo V Martial Arts and Combat Sports Research Group of Physical Education and Sport School - University of São Paulo, Brazil , Marinho, Bruno F Federal University of Viçosa, Brazil , Miarka, Bianca Martial Arts and Combat Sports Research Group of Physical Education and Sport School - University of São Paulo, Brazil , Monteiro, Luis Faculty of Physical Education and Sport - Lusófona University, Lisbon, Portugal , Franchini, Emerson Martial Arts and Combat Sports Research Group of Physical Education and Sport School - University of São Paulo, Brazil
Abstract :
Purpose: 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).
Methods: Ten athletes participated in the study (age: 25.6±2.1 years; stature:
1.75±0.07 m; body mass: 75.6±14.9kg; %BF: 11.5±7.8%; practice: 14.5±6.2 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.
Results: Significant correlations were observed between: (1) CR-10 and HR (T2: r
=0.70; T3: r =0.64; both, P<0.05); (2) ΔCR-10 and Δ[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 2nd (T2) and 3rd (T3) judo fight
simulations (P<0.05).
Conclusion: 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.
Keywords :
Sports , Heart Rate , Blood Lactate , Athletes , Judo
