Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
Views
2116
Download
1283
 
©Journal of Sports Science and Medicine (2023) 22, 68 - 74   DOI: https://doi.org/10.52082/jssm.2023.68

Research article
Easy Prediction of the Maximal Lactate Steady-State in Young and Older Men and Women
Silvia Pogliaghi1, , Massimo Teso1, Luca Ferrari1, Jan Boone3, Juan M. Murias2, Alessandro L. Colosio3
Author Information
1 Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
2 Faculty of Kinesiology, University of Calgary, Calgary, Canada
3 Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium

Silvia Pogliaghi
✉ MD, PhD Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Italy
Email: silvia.pogliaghi@univr.it
Publish Date
Received: 17-10-2022
Accepted: 15-01-2023
Published (online): 01-03-2023
 
 
ABSTRACT

Maximal Lactate steady-state (MLSS) demarcates sustainable from unsustainable exercise and is used for evaluation/monitoring of exercise capacity. Still, its determination is physically challenging and time-consuming. This investigation aimed at validating a simple, submaximal approach based on blood lactate accumulation ([Δlactate]) at the third minute of cycling in a large cohort of men and women of different ages. 68 healthy adults (40♂, 28♀, 43 ± 17 years (range 19-78), VO2max 45 ± 11 ml-1·kg-1·min-1 (25-68)) performed 3-5 constant power output (PO) trials with a target duration of 30 minutes to determine the PO corresponding to MLSS. During each trial, [Δlactate] was calculated as the difference between the third minute and baseline. A multiple linear regression was computed to estimate MLSS based on [Δlactate], subjects` gender, age and the trial PO. The estimated MLSS was compared to the measured value by paired t-test, correlation, and Bland-Altman analysis. The group mean value of estimated MLSS was 180 ± 51 W, not significantly different from (p = 0.98) and highly correlated with (R2 = 0.89) measured MLSS (180 ± 54 watts). The bias between values was 0.17 watts, and imprecision 18.2 watts. This simple, submaximal, time- and cost-efficient test accurately and precisely predicts MLSS across different samples of healthy individuals (adjusted R2 = 0.88) and offers a practical and valid alternative to the traditional MLSS determination.

Key words: Cycling, maximal metabolic steady state, critical power, blood lactate, aging, functional test


           Key Points
  • Lactate accumulation from a submaximal test can be used to predict the maximal lactate steady state (MLSS).
  • This approach was previously proposed in young men, and it is here extended to women and elderly people.
  • Within the limitations of lactate measurements, this 3-min submaximal test offers an economical and practical approach to obtain a first estimate of the MLSS.
 
 
Home Issues About Authors
Contact Current Editorial board Authors instructions
Email alerts In Press Mission For Reviewers
Archive Scope
Supplements Statistics
Most Read Articles
  Most Cited Articles
 
  
 
JSSM | Copyright 2001-2024 | All rights reserved. | LEGAL NOTICES | Publisher

It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.

This work is licensed under a Creative Commons License Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.