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https://observatorio.fm.usp.br/handle/OPI/315
Title: | Ventilatory threshold is related to walking tolerance in patients with intermittent claudication |
Authors: | CHEHUEN, Marcel da Rocha; CUCATO, Gabriel Grizzo; BARBOSA, Joao Paulo dos Anjos Souza; COSTA, Luis Augusto Riani; RITTI-DIAS, Raphael Mendes; WOLOSKER, Nelson; FORJAZ, Claudia Lucia de Moraes |
Citation: | VASA-EUROPEAN JOURNAL OF VASCULAR MEDICINE, v.41, n.4, p.275-281, 2012 |
Abstract: | Background: This study assessed the relationship between lower limb hemodynamics and metabolic parameters with walking tolerance in patients with intermittent claudication (IC). Patients and methods: Resting ankle-brachial index (ABI), baseline blood flow (BF), BF response to reactive hyperemia (BFRH), oxygen uptake (VO2), initial claudication distance (ICD) and total walking distance (TWD) were measured in 28 IC patients. Pearson and Spearman correlations were calculated. Results: ABI, baseline BF and BF response to RH did not correlate with ICD or TWD. VO2 at first ventilatory threshold and VO(2)peak were significantly and positively correlated with ICD (r = 0.41 and 0.54, respectively) and TWD (r = 0.65 and 0.71, respectively). Conclusions: VO(2)peak and VO2 at first ventilatory threshold, but not ABI, baseline BF and BFHR were associated with walking tolerance in IC patients. These results suggest that VO2 at first ventilatory threshold may be useful to evaluate walking tolerance and improvements in IC patients. |
Appears in Collections: | Artigos e Materiais de Revistas Científicas - FM/MCG Artigos e Materiais de Revistas Científicas - HC/ICHC Artigos e Materiais de Revistas Científicas - LIM/28 |
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