2016, Volume 12, Issue 1

The interdependence of the main indicators of five methods applied to determine the lactate anaerobic threshold judo athletes



Stanisław Sterkowicz1, Tomasz Gabryś2, Urszula Szmatlan-Gabryś3, Arkadiusz Stanula4, Michał Garnys5

1Department of Theory of Sport and Kinesiology, Institute of Sport, University of Physical Education in Cracow, Poland
2Institute of Physical Education, Tourism and Physiotherapy, Jan Dlugosz University in Czestochowa, Poland
3Faculty of Rehabilitation, University of Physical Education in Cracow, Poland
4Department of Sports Theory, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland
5Laboratory of Physical Preparation 4SportLab, Poland


Author for correspondence: Tomasz Gabryś; Institute of Physical Education, Tourism and Physiotherapy, Jan Dlugosz University in Czestochowa, Poland; email: tomaszek1960@tlen.pl


Full text

Abstract

Background and Study Aim: In the practice of sport training the anaerobic threshold (LT2) is sought using a whole range of methods. As a result, different LT2 values are obtained and applied to programme endurance training. The aim of the research are the relationships between the main indicators of the five methods  applied to determine the lactate anaerobic threshold judo athletes.

Material and Methods: In the study, 19 judoists at international and national sport level going through a preparation period for competition performed a graded incremental exercise test (GXTs) that met the requirements of all five methods. The research used five methods that are usually applied in training practice to analyse the blood lactate concentration curve: LTvisual, LTloglog, LT4.0, LTdel1, and LTD-max. LT2 values generated by LTvisual, LTloglog, LT4.0, LTdel1, and LTD-max methods were used to build regression equations for determining LT2 based on LT4.0 values.

Results: The experiment has showed that judoists, like other athletes, have a specific profile of running velocities at anaerobic threshold. The range of running velocities (VCR) at which their maximal oxygen uptake (VO2max) was recorded points to a relatively wide range of work rates that can be applied to build the aerobic endurance of judoists at similar levels of sport accomplishment. With the exception of LTD-max, the other methods of lactate curve analysis produced very similar running velocities at anaerobic threshold (VAT).

Conclusions: This study shows which methods can be used interchangeably for training purposes without the risk of running velocities being considerably different. It has been found that VLT2 values obtained from LT4.0 method are the most similar to those generated by the other methods.


Key words: aerobic endurance, aerobic training zone, combat sports, exercise intensity, training periodization