Study with a Portable Gas Analyzer of the 6-Minute Walk Test in Heart Failure with Normal Ejection Fraction

Teixeira, José Antônio Caldas; Messias, Leandro Rocha; Dias, Kátia Pedreira; Costa, Washington Luiz Batista da; Cascon, Roberto Macedo; Miranda, Sandra Marina Ribeiro de; Teixeira, Pedro Soares; Jorge, Juliana Grael; Nóbrega, Antônio Cláudio Lucas da; Araújo, Denizar Vianna

doi:10.5935/2359-4802.20180001

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“…In contrast, because the 6MWT is a walk‐only, self‐paced, and nonmaximal effort test, the presence of a PGA does not seem to generate discomfort and therefore does not interfere with test performance. In contrast, Teixeira et al 32 investigated cardiorespiratory and ventilatory variables in 22 adults with heart failure and normal ejection fraction during the 6MWT using a PGA (MGC, VO2000: MedGraphics). We observed that the DT in the 6MWT without the use of the PGA was shorter than that with the use of the PGA (419.2 ± 76.5 vs 446.2 ± 67.7 m).…”

Section: Discussionmentioning

confidence: 99%

Use of portable gas analyzers during pediatric field testing

Itaborahy

Wamosy

Scalco

et al. 2020

Pediatric Pulmonology

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Objective To compare performance and cardiorespiratory responses in field tests performed by healthy children, with and without the use of a portable gas analyzer (PGA), and to analyze the reproducibility of the tests. Method The study included healthy children aged 6 to 14 years old. The sample was divided into children who underwent field tests (modified shuttle walk test [MSWT], 6‐minute walk test [6MWT], and ADL‐Glittre for pediatrics [TGlittre‐P]) without PGA (GS) and children who carried the equipment K4b2—COSMED, Rome, Italy (GK). Results A total of 120 children participated in the study, 31 in the GK (mean age 10.16 ± 1.81 years old) and 89 in GS (mean age 10.1 ± 1.79 years old). The groups did not differ from each other and there was no significant difference in the performance of the 6MWT and MSWT intergroup (P > .05), but the significant alteration in the variables of the cardiorespiratory response was identified. In the TGlittre‐P, the GK completed the test in a shorter time than the GS (2.69 ± 0.38 minutes vs 2.91 ± 0.40 minutes) and both presented alterations in most cardiorespiratory variables. The intragroup reproducibility showed concordance in all tests, and there was no concordance between groups (P > .05). Conclusion The use of PGA had a lower time spent on TGlittre‐P. In the 6MWT and MSWT, there was no difference in cardiorespiratory performance and response with and without the use of PGA. The three field tests were reproducible, but the same test, with and without the use of PGA, did not show agreement.

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Section: Discussionmentioning

confidence: 99%