Method ological factors affecting 6MWD include track length , encouragement , supplemental oxygen and walking aids .
Supplemental oxygen also affects ISWT and ESWT performance .
Responsiveness was moderate to high for all tests , with greater responsiveness to interventions that included exercise training .
The findings of this review demonstrate that the 6MWT , ISWT and ESWT are robust tests of functional exercise capacity in adults with chronic respiratory disease
This systematic review examined the measurement properties of the 6-min walk test ( 6MWT ) , incremental shuttle walk test ( ISWT ) and endurance shuttle walk test ( ESWT ) in adults with chronic respiratory disease .
Six-Minute Walking Distance in Women with COPD
Background : The 6-minute walk distance ( 6MWD ) has been useful in the evaluation of men with COPD . Little is known about 6MWD in women with the disease . Objectives : Using healthy women as a reference , to evaluate the factors that help determine 6MWD in women with COPD . To explore if the 350 meters threshold differentiates survival in women as it does in men . Methods : Healthy women ( n = 164 ) and with COPD ( n = 223 ) were included in the study . Age , pack-years history , smoking status , comorbidities ( Charlson Index ) , BMI , MRC dyspnea , spirometry and 6MWD were recorded in all participants and PaO2 and IC/TLC in COPD women . The patients were prospect ively followed and deaths registered . Factors predicting 6MWD were determined by multiple regression analysis . ROC analysis was used to calculate the best threshold value for the 6MWD with mortality as gold st and ard . Kaplan-Meier curves compared survival of patients that walked more or less than 350 m by age categories . Results : The 6MWD is decreased in women with COPD . Values decrease with age and GOLD stages . Age , BMI , smoking status , comorbidities , MRC and FEV1 % are statistical significant predictors of 6MWD . A 350 m cut-off value has a good sensitivity and specificity to predict ( 73 % and 80 % respectively ) and differentiate survival ( p < 0.001 for log rank comparisons ) in these patients . Conclusions : In women with COPD , the 6MWD decreases with age and GOLD stages . A 350 m distance is a valid threshold to differentiate survival . Further studies in different setting s should confirm our findings
Method ological factors affecting 6MWD include track length , encouragement , supplemental oxygen and walking aids .
Supplemental oxygen also affects ISWT and ESWT performance .
Responsiveness was moderate to high for all tests , with greater responsiveness to interventions that included exercise training .
The findings of this review demonstrate that the 6MWT , ISWT and ESWT are robust tests of functional exercise capacity in adults with chronic respiratory disease
This systematic review examined the measurement properties of the 6-min walk test ( 6MWT ) , incremental shuttle walk test ( ISWT ) and endurance shuttle walk test ( ESWT ) in adults with chronic respiratory disease .