Ventilatory threshold is related to walking tolerance in patients with intermittent claudication.
Vasa
; 41(4): 275-81, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22825861
ABSTRACT
BACKGROUND:
This study assessed the relationship between lower limb hemodynamics and metabolic parameters with walking tolerance in patients with intermittent claudication (IC). PATIENTS ANDMETHODS:
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 VO2peak were significantly and positively correlated with ICD (r = 0.41 and 0.54, respectively) and TWD (r = 0.65 and 0.71, respectively).CONCLUSIONS:
VO2peak 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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Consumo de Oxigênio
/
Caminhada
/
Tolerância ao Exercício
/
Músculo Esquelético
/
Ventilação Pulmonar
/
Teste de Esforço
/
Claudicação Intermitente
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article