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 ) .
Validity of the Functional Gait Assessment in Patients With Parkinson Disease: Construct, Concurrent, and Predictive Validity
Background The Functional Gait Assessment ( FGA ) is a vali date d measurement of gait-related activities in certain population s and may be potentially useful to assess balance and gait disorders in patients with Parkinson disease ( PD ) . Objective The purpose of this study was to determine the construct , concurrent , and predictive validity of the FGA in in patients with PD . Design This was a prospect i ve cohort study . Methods One hundred twenty-one in patients with PD were prospect ively enrolled . The FGA and other relevant appraisal s of gait , balance , disease severity , and activities of daily living were performed . Six months later , the patients were interviewed by telephone to have their fall information collected . Principal component analysis was used to determine construct validity . Spearman correlation coefficients were used to determine concurrent validity between the FGA and other measures . Cutoff point , sensitivity , specificity , and positive likelihood ratio were calculated for predictive validity based on the receiver operating characteristic curve . Results One common factor was extracted for construct validity , which cumulatively explained 64.0 % of the total variance . Correlation coefficients for the FGA compared with other measures ranged from .57 to .85 . The cutoff point for predicting falls was 18 , with sensitivity of 80.6 % , specificity of 80.0 % , and positive likelihood ratio of 4.03 . Limitations This study was limited by the length of time of follow-up and self-reports of falls without the requirement of a fall diary . Medication adjustment after the FGA evaluation may have led to a different cutoff score for identifying those patients who were at risk of falling . Conclusions The FGA demonstrated good construct validity in patients with PD . It had moderate to strong correlations with other balance and gait appraisal s. The FGA can be used to predict falls within the subsequent 6 months
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 ) .