These measures assess balance and falls risk prediction at the body , structure and function level , falls risk and balance , and falls risk at the activity level .
The motor examination of the Unified Parkinson ’s Disease Rating Scale ( UPDRS-ME ) with robust psychometric analysis is a condition-specific measure with acceptable properties .
Conclusion : Six of the 68 outcome measures have strong psychometric properties for the assessment of balance and falls risk prediction in PD .
Objective : To investigate the psychometric properties of measures of balance and falls risk prediction in people with Parkinson ’s disease ( PD ) .
Short-distance walking speed tests in people with Parkinson disease: reliability, responsiveness, and validity.
PURPOSE The aims of this study were to determine test-retest reliability and responsiveness of short-distance walking speed tests for persons with Parkinson disease ( PD ) . Discriminant and convergent validity of walking speed tests were also examined . METHODS Eighty-eight participants with PD ( mean age , 66 years ) with mild to moderate severity ( stages 1 - 4 on the Hoehn and Yahr Scale ) were tested on medications . Measures of activity included the  comfortable and fast 10-m walk tests ( CWT , FWT ) , 6-min walk test ( 6MWT ) , mini balance evaluations systems test ( mini-BEST Test ) , fear of falling ( FoF ) , and the Activity-Specific Balance Confidence Scale ( ABC ) . The mobility subsection of the PD quality of life-39 ( PDQ39-M ) served as a participation-based measure . RESULTS Test-retest reliability was high for both walking speed measures ( CWT , ICC(2,1 ) = 0.98 ; FWT , ICC(2,1 ) = 0.99 ) . Minimal detectable change ( MDC(95 ) ) for the CWT and FWT was 0.09 m/s and 0.13 m/s respectively . Participants at Hoehn & Yahr levels 3/4 demonstrated significantly slower walking speed with the CWT and FWT than participants at Hoehn & Yahr levels 1 and 2 ( P < .01 ) . The CWT and FWT were both significantly ( P ≤ .002 ) correlated with all activity and participation-based measures . CONCLUSIONS Short-distance walking speed tests are clinical ly useful measures for persons with PD . The CWT and FWT are highly reliable and responsive to change in persons with PD . Short distance walking speed can be used to discriminate differences in gait function between persons with mild and moderate PD severity . The CWT and FWT had moderate to strong associations with other activity and participation based measures demonstrating convergent validity
These measures assess balance and falls risk prediction at the body , structure and function level , falls risk and balance , and falls risk at the activity level .
The motor examination of the Unified Parkinson ’s Disease Rating Scale ( UPDRS-ME ) with robust psychometric analysis is a condition-specific measure with acceptable properties .
Conclusion : Six of the 68 outcome measures have strong psychometric properties for the assessment of balance and falls risk prediction in PD .
Objective : To investigate the psychometric properties of measures of balance and falls risk prediction in people with Parkinson ’s disease ( PD ) .