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 .
Heart rate responses during the 6-minute walk test in pulmonary arterial hypertension
Patients with pulmonary arterial hypertension ( PAH ) exhibit a limited increase in stroke volume on exercise , and the heart rate ( HR ) increases may reflect the main mechanism that allows cardiac output to increase . The current prospect i ve study documented the contribution of HR to the 6-min walking distance ( 6MWD ) in idiopathic ( IPAH ) and nonidiopathic PAH . Eighty-three patients ( 46 IPAH and 37 nonidiopathic PAH ) underwent haemodynamic evaluation and a 6MWD test . Chronotropic response ( peak walking HR minus resting HR ) and peripheral oxygen saturation were monitored . Fifty-seven patients were also assessed after 5±2 months of treatment ( bosentan n = 38 , epoprostenol n = 14 , bosentan-epoprostenol n = 3 , iloprost n = 2 ) . Before treatment , the 6MWD was related to numerous demographic , haemodynamic and walking test characteristics . Stepwise regression analysis indicated that the only factors significantly associated with the 6MWD were stroke volume and chronotropic response in both IPAH and nonidiopathic PAH patients . Following treatment , changes in 6MWD were significantly related to changes in chronotropic response in both IPAH and nonidiopathic PAH . In conclusion , baseline stroke volume and chronotropic response were independently associated with the 6-min walking distance in pulmonary arterial hypertension . The lack of chronotropic response may reflect the loss in normal physiological reserve in more unwell patients
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 .