Identification of maximal lactate steady state by a short lactate minimum test in walking
Objectives: The purpose of this study was to analyze the validity of a short Lactate Minimum test (LM) to assess the maximum lactate steady state (MLSS) during walking tests. Equipment and methods: Twelve healthy young participants performed LM on a treadmill at 5.5 km·h−1, with the intensity being...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés francés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/206374 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.scispo.2020.08.007 http://hdl.handle.net/11449/206374 |
| Access Level: | acceso abierto |
| Palabra clave: | Aerobic Fitness Polynomial function Rating of perceived exertion Walking test |
| Sumario: | Objectives: The purpose of this study was to analyze the validity of a short Lactate Minimum test (LM) to assess the maximum lactate steady state (MLSS) during walking tests. Equipment and methods: Twelve healthy young participants performed LM on a treadmill at 5.5 km·h−1, with the intensity being incremented by inclination (%). Participants first performed a walking trial at 5.5 km·h−1 with 20% or 22% inclination until voluntary exhaustion. After 7 min of recovery an incremental test was initiated by using only 3 incremental stages that were selected based on the rate of perceived exertion (RPE). The LM intensity was identified as the lowest [bLac] during the incremental test, by using a visual inspection (LM3v) and applying a polynomial function of second order (LM3p). The MLSS intensity was also measured. Results: ANOVA showed no difference between the intensities (i.e., treadmill inclination) of MLSS (13.3 ± 2.2%), LM3 v (12.6 ± 1.6%), and LM3p (13.4 ± 1.3%). Conclusion: It was possible to identify the LM during walking by using 3 stages in most of the participants expressing the MLSS intensity with good agreement and correlation between them. |
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