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The Journal of Sports Medicine and Physical Fitness 2017 Apr 28

DOI: 10.23736/S0022-4707.17.07158-4

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Lactacidemic variation and movement patterns during anaerobic power test

Vitor L., de ANDRADE 1, 4, Marcelo PAPOTI 1, 3, Eduardo ZAPATERRA CAMPOS 2, Carlos A. KALVA-FILHO 1, Ronaldo BUCKEN GOBBI 2, Luiz H. PALUCCI VIEIRA 1, Bruno SOUZA BEDO 1, Paulo R. PEREIRA SANTIAGO 1, 3

1 Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; 2 Department of Physical Education, Universidade Estadual Paulista “Julio de Mesquita Filho”, Presidente Prudente, São Paulo, Brazil; 3 School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; 4 Biosciences Institute, Universidade Estadual Paulista “Julio de Mesquita Filho”, Rio Claro, São Paulo, Brazil


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BACKGROUND: After the Running Anaerobic Sprint Test (RAST) high blood lactate concentrations ([La-]) are found. However, no study verified the behavior of this metabolite during RAST. For this, the aim of the present study was to verify the implications of increase [La-] on movement patterns’ in RAST performance.
METHODS: Six healthy and active individuals (21.8 ± 3.1 years, 70.9 ± 10.8 kg and 179.7 ± 3.3 cm) executed a standardized warm-up. Two minutes after, subjects performed RAST composed of six maximal 35 m bouts separated by 10 s of passive recovery. During RAST, 14 cameras monitored the subjects to determine tridimensional and bi-dimensional mechanics. [La-] were determined before warm- up, between each bout and after RAST.
RESULTS: Significant difference in performance were found after the fifth (5.1 ± 0.1 s) and sixth (5.4 ± 0.3 s; p<0.04) bout in relation to the first up to fourth effort. Fatigue indexes (FI% and FIREAL) were higher from fifth bout (19.2 ± 9.4%; 19.3 ± 10.9%; p < 0.05). No significant difference was observed in [La-] on fifth and sixth bout (8.2 ± 2.4 mM and 9.2 ± 2.1 mM) however, both were different from all other bouts. Flight time was different between the fifth bout (0.16 ± 0.03 s) when compared with the first (0.12 ± 0.01 s; p = 0.01) and second (0.13 ± 0.02s; p = 0.03) bouts.
CONCLUSIONS: RAST performance can be influenced by physiological changes. Biomechanical behavior doesn’t alter performance without a sum of physiological events.


KEY WORDS: Team sports - RAST - Biomechanics - Lactate - Movement

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Cite this article as

Vitor L, Andrade D, Papoti M, Zapaterra Campos E, Kalva-Filho CA, Bucken Gobbi R, et al. Lactacidemic variation and movement patterns during anaerobic power test. J Sports Med Phys Fitness 2017 Apr 28. DOI: 10.23736/S0022-4707.17.07158-4 

Corresponding author e-mail

paulosantiago@usp.br