Limited evidence to strong evidence was found for reliability in various chronic conditions .
Little evidence was available for responsiveness and measurement error .
Studies showed large variability in test procedures despite existing guidelines for the performance of the 6MWT .
Evidence for measurement properties of the 6MWT  varies largely among chronic pediatric conditions .
BACKGROUND The Six-Minute Walk Test ( 6MWT ) is increasingly being used as a functional outcome measure for chronic pediatric conditions .
Knowledge about its measurement properties is needed to determine whether it is an appropriate test to use .
PURPOSE The purpose of this study was to systematic ally review all published clinimetric studies on the 6MWT in chronic pediatric conditions .
Feasibility and effects of a physical exercise programme in adults with myotonic dystrophy type 1: a randomized controlled pilot study.
OBJECTIVE To investigate the feasibility and effects of a physical exercise programme on functioning and health-related quality of life in adults with myotonic dystrophy type 1 . DESIGN A r and omized controlled trial . SUBJECTS Thirty-five adults with myotonic dystrophy type 1 . METHODS After stratification for level of functioning , study participants were assigned by lot to either a training group or a control group . Training-group participants attended a 60-minute comprehensive group-training programme , Friskis&Svettis ® Open Doors , twice a week for 14 weeks . The six-minute walk test was the primary outcome measure and the timed-st and s test , the timed up- and -go test , the Epworth sleepiness scale and the Short Form-36 health survey were secondary outcome measures . RESULTS Intention-to-treat analyses revealed no significant differences in any outcome measures , except for an increased between-group difference after intervention in the Short Form-36 mental health subscale and a decrease in the vitality subscale for the control group . The programme was well tolerated and many training-group participants perceived subjective changes for the better . No negative effects were reported . CONCLUSION The Friskis&Svettis ® Open Doors programme was feasible for adults with myotonic dystrophy type 1 who had been screened for cardiac involvement , had distal or mild-to-moderate proximal muscle impairment , and no severe cognitive impairments . No beneficial or detrimental effects were evident
Limited evidence to strong evidence was found for reliability in various chronic conditions .
Little evidence was available for responsiveness and measurement error .
Studies showed large variability in test procedures despite existing guidelines for the performance of the 6MWT .
Evidence for measurement properties of the 6MWT  varies largely among chronic pediatric conditions .
BACKGROUND The Six-Minute Walk Test ( 6MWT ) is increasingly being used as a functional outcome measure for chronic pediatric conditions .
Knowledge about its measurement properties is needed to determine whether it is an appropriate test to use .
PURPOSE The purpose of this study was to systematic ally review all published clinimetric studies on the 6MWT in chronic pediatric conditions .