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ORIGINAL ARTICLES  EXERCISE PHYSIOLOGY AND BIOMECHANICS 

The Journal of Sports Medicine and Physical Fitness 2016 May;56(5):497-502

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English

The relationship between the heart rate deflection point test and maximal lactate steady state

Paulo E. DE ASSIS PEREIRA 1, Vitor K. PIUBELLI CARRARA 2, Gustavo MELLO RISSATO 2, João M. PEREIRA DUARTE 2, Ricardo L. FERNANDES GUERRA 1, 3, Paulo H. SILVA MARQUES DE AZEVEDO 1, 3

1 Group of Studies and Research in Exercise Physiology, Federal University of São Paulo, Santos, São Paulo, Brazil; 2 Anhanguera University of Bauru, Bauru, São Paulo, Brazil; 3 Department of Human Movement Science Santos, Federal University of São Paulo, Santos, São Paulo, Brazil


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BACKGROUND: The aim of this study was to investigate the use of the Heart Rate Deflection Point Test (HRDP) in the determination of the velocity at the Maximal Lactate Steady State (MLSS).
METHODS: Fifteen untrained male participants took part in a 3000-m running performance on a 400-m track. The volunteers performed an incremental test for HRDP determination. The third test was constant velocity, which lasted around 30 minutes and was based around HRDP for MLSS determination.
RESULTS: Performance velocity at HRDP was strongly correlated with the MLSS running velocity (r=0.84; R2=0.71; P<0.0001). HRDP running velocity (mean±SD 9.0±1.3-km.h-1) was not significantly different (P>0.05) from MLSS velocity (9.3±1.3km.h-1). A high agreement was observed between methods (Bland and Altman analysis) with a mean error of 0.47 km.h-1.
CONCLUSIONS: We can conclude that the HRDP was able to predict MLSS velocity.

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