Bradykinesia Subscale Administered Alone Versus Regular Administration: Psychometric Properties

Investigation of the Psychometric Properties of the Bradykinesia Subscale When Administered Alone Versus as a Component of the Entire Motor Examination Section of the Unified Parkinson's Disease Rating Scale

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00932581

Acronym

Bravura

Enrollment

110

Registered

2009-07-03

Start date

2009-06-30

Completion date

2009-12-31

Last updated

2023-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson's Disease

Keywords

Parkinson's Disease, Movement Disorders, Unified Parkinson's Disease Rating Scale, Short Parkinson's Evaluation Scale, Scales for Outcomes in Parkinson's Disease, Motor Evaluation, Schwab and England activities of daily living, Bradykinesia, psychometrics, order effects, hoehn yahr aging, assessments

Brief summary

The purpose of this study is to examine whether scores on questionnaires that rate how much Parkinson's Disease (PD) has slowed movements of the body differ when the order of the questions are changed. The consistency and accuracy of the questionnaires will also be examined. It is hypothesized that there will not be a difference.

Interventions

OTHERBradykinesia UPDRS Motor Full Examination

The first group will receive the full motor examination section in its original order.

OTHERBradykinesia subscale of UPDRS Motor Examination

The second group will receive the bradykinesia subscale first followed by the remainder of the motor examination section.

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

30 Years to No maximum

Healthy volunteers

Inclusion criteria

1. Male or Female at least 30 years of age 2. Willing to be assessed using the motor examination section of the UPDRS and the SPES/SCOPA motor evaluation 3. Patients must be willing and able to give written informed consent prior to performing an study procedures 4. Be in the ON State (only for patients who fluctuate between ON and OFF states)

Exclusion criteria

1. Absence of bradykinesia at the time of assessment 2. Hoehn and Yahr stage not available from patient's chart or not assessed between 3 and 180 days prior to clinic visit 3. Has received and experimental drug within the last thirty (30) days

Design outcomes

Primary

Measure	Time frame
Scores on the UPDRS motor evaluation subscale are equivalent.	4 months

Secondary

Measure	Time frame
Correlations between the UPDRS motor examination bradykinesis subscale and the remaining UPDRS motor examination items, Hoeh and Yahr stage, Schwab and England scale, and SPES/SCOPA motor evaluation.	4 months

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026