Ventilatory threshold is related to walking tolerance in patients with intermittent claudication

M da Rocha Chehuen; G Cucato; J Dos Anjos Souza Barbosa; L Costa; R Ritti-Dias; N Wolosker; C de Moraes Forjaz

doi:10.1024/0301-1526/a000203

Ventilatory threshold is related to walking tolerance in patients with intermittent claudication

M da Rocha Chehuen, G Cucato, J Dos Anjos Souza Barbosa, L Costa, R Ritti-Dias, N Wolosker, C de Moraes Forjaz

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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 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.

Original language	English
Pages (from-to)	275-81
Number of pages	7
Journal	Vasa - European Journal of Vascular Medicine
Volume	41
Issue number	4
DOIs	https://doi.org/10.1024/0301-1526/a000203
Publication status	Published - Jul 2012
Externally published	Yes

Keywords

Aged
Anaerobic Threshold
Ankle Brachial Index
Brazil
Exercise Test
Exercise Tolerance
Hemodynamics
Humans
Hyperemia/physiopathology
Intermittent Claudication/diagnosis
Lower Extremity
Male
Middle Aged
Muscle, Skeletal/blood supply
Oxygen Consumption
Predictive Value of Tests
Pulmonary Ventilation
Regional Blood Flow
Walking

UN SDGs

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10.1024/0301-1526/a000203

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title = "Ventilatory threshold is related to walking tolerance in patients with intermittent claudication",

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 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.",

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author = "{da Rocha Chehuen}, M and G Cucato and {Dos Anjos Souza Barbosa}, J and L Costa and R Ritti-Dias and N Wolosker and {de Moraes Forjaz}, C",

year = "2012",

month = jul,

doi = "10.1024/0301-1526/a000203",

language = "English",

volume = "41",

pages = "275--81",

journal = "Vasa - European Journal of Vascular Medicine",

issn = "0301-1526",

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TY - JOUR

T1 - Ventilatory threshold is related to walking tolerance in patients with intermittent claudication

AU - da Rocha Chehuen, M

AU - Cucato, G

AU - Dos Anjos Souza Barbosa, J

AU - Costa, L

AU - Ritti-Dias, R

AU - Wolosker, N

AU - de Moraes Forjaz, C

PY - 2012/7

Y1 - 2012/7

N2 - 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 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.

AB - 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 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.

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KW - Brazil

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KW - Exercise Tolerance

KW - Hemodynamics

KW - Humans

KW - Hyperemia/physiopathology

KW - Intermittent Claudication/diagnosis

KW - Lower Extremity

KW - Male

KW - Middle Aged

KW - Muscle, Skeletal/blood supply

KW - Oxygen Consumption

KW - Predictive Value of Tests

KW - Pulmonary Ventilation

KW - Regional Blood Flow

KW - Walking

U2 - 10.1024/0301-1526/a000203

DO - 10.1024/0301-1526/a000203

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EP - 281

JO - Vasa - European Journal of Vascular Medicine

JF - Vasa - European Journal of Vascular Medicine

IS - 4

ER -

Ventilatory threshold is related to walking tolerance in patients with intermittent claudication

Abstract

Keywords

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