Determination of individual glucose threshold using pharmacy portable blood glucose meter
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Data
2019-01-01
Autores
de Sousa, Nuno Manuel Frade
da Silva Júnior, Aloísio Barbosa
Mairink, Raquel de Souza
Bertucci, Danilo Rodrigues [UNESP]
Souza, Markus Vinícius Campos
Martins, Raul Agostinho Simões
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Resumo
Introduction: The individual glucose threshold (IGT) has been used to estimate the anaerobic threshold with low-cost analyses and shorter times. However, the reliability of the glycemic analysis using a portable pharmacy glucose meter has received little attention. Objective: To identify the IGT using a portable glucose meter and to compare it with the ventilatory threshold (VT). Methods: Fourteen active, healthy men (25.9 ± 3.2 years; %BF = 17.9 ± 3.7%) performed an incremental treadmill test. The anaerobic threshold was identified by two different methods: (1) IGT, corresponding to the intensity of the lowest glucose value during the test; and (2) VT, corresponding to the break in linearity of the ventilation curve and an increase in the respiratory oxygen equivalent, without an equivalent increase in carbon dioxide. Results: There were significant differences between VT (9.9 ± 1.2 km/h) and IGT (9.5 ± 1/1 km/h), corresponding to 75.4 ± 9.2 and 72.5 ± 10.4 %VO2max, respectively. The methods presented high correlation (r = 0.82, p = 0.002) and the Bland-Altman technique showed agreement between IGT and VT, with a mean difference of 0.5 km/h. Conclusion: It was possible to determine the intensity of IGT by the glycemic response in the incremental test using a portable glucose meter. The IGT underestimated the intensity of VT by approximately 0.5 km/h, but with a high correlation and agreement between them. Level of evidence III, Case-Controle Study.
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Palavras-chave
Anaerobic threshold, Blood glucose, Ventilatory anaerobic threshold
Como citar
Revista Brasileira de Medicina do Esporte, v. 25, n. 3, p. 207-210, 2019.