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 .
Submaximal exercise testing in the assessment of interstitial lung disease secondary to systemic sclerosis: reproducibility and correlations of the 6-min walk test
Background : The 6-min walk test ( 6MWT ) is increasingly used as an outcome measure in interstitial lung disease ( ILD ) . Aim : To evaluate the usefulness of the 6MWT in a cohort of patients with ILD secondary to systemic sclerosis ( SSc ) and to correlate with established physiological parameters . Methods : 163 patients with SSc-ILD were recruited for a multicentre , r and omised , double-blind clinical trial . Available data at protocol screening included repeated 6MWTs , pulmonary function testing with diffusing capacity , Doppler echocardiography and high-resolution computed tomography of the thorax . Borg Dyspnoea Index was evaluated before and after 6MWT . Results : Mean ( st and ard deviation ( SD ) ) distance walked during walk test 1 was 396.6 ( 84.55 ) m compared with 399.5 ( 86.28 ) m at walk test 2 . The within-subject , intertest correlation as determined by Pearson ’s correlation coefficient testing was 0.95 ( p<0.001 ) . However , only weak correlations of 6MWT with percentage forced vital capacity and the Borg Dyspnoea Index were observed , and no correlation was observed with percentage diffusing capacity . Conclusion : These data confirm the high reproducibility of the  6MWT in patients with SSc-ILD and therefore the validity of the test in this cohort . The lack of correlation of 6MWT with st and ard physiological parameters of ILD suggests a multifactorial basis for limited exercise capacity in patients with SSc and calls into question the utility of the 6MWT as a measure of outcome in future studies on SSc-ILD
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 .