Myositis
Conditions
Keywords
reliability, validity, measurement error
Brief summary
The aim of the study is to evaluate the psychometric properties (content and construct validity, reliability, measurements error, as well as possible floor and ceiling effects) of both the assessments MMT8 and the myositis activity profile in patients with IM.
Detailed description
This study evaluates the validity and reliability of two health related instruments that assess disease relevant functions and disabilities in patients with IM: the manual muscle testing 8 (MMT8) and the myositis activity profile (MAP). This study is needed to determine the psychometric properties of these two assessments. Provided that both the MMT8 and the MAP show good psychometric properties, these assessments could be used in the rehabilitation process and intervention programs of patients with IM to determine progress in muscle strength and activity in daily life. Methodology: Reliability (Test re-test study and validity (cross sectional study) of a short form of MMT 8 and a questionnaire to assess difficulties in activities of daily life (MAP) in myositis patients.
Interventions
DEVICENon intervention study
Test - Retest of measurements
Sponsors
University of Zurich
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Inclusion criteria
* Diagnosis of polymyositis or dermatomyositis or inflammatory myositis associated disorders (e.g. Scleroderma, Systematic lupus erythematosus, Sjögren's syndrome) * Age over 18 * Sufficiently understanding of German language * able to understand and follow verbal and written instructions * signed informed consent to participate in the study
Exclusion criteria
* Diagnosis of inclusion body myositis * Pulmonary hypertension * Osteoporosis * Severe cardiovascular and/or pulmonary disease * Pain syndrome * Paresis Inclusion Criteria aged and gender matched healthy controls (Systematic lupus erythematosus, Sjögren's syndrome) * Age over 18 * Sufficiently understanding of German language * able to understand and follow verbal and written instructions * signed informed consent to participate in the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Manual Muscle Testing 8 (MMT8) | 15 minutes | The strength of 8 Muscle groups is tested in a defined position and rewarded with a score varying from 0 (No visible movement) to 10 (holds test position against strong pressure) and summed for a potential score from 0-80. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Functional Index 2 | 30 minutes | Evaluates muscle endurance of the upper & lower extremity and neck flexors movements: amount of repetitions. |
| Functional Test Battery (FTB): Test 1 Self-Performed Physical Performance Test. | Total FTB: 1 1/4 hours | Time in seconds to get up and sit down 5 times from a chair. |
| Functional Test Battery (FTB): Balance Test | Total FTB: 1 1/4 hours | Time in seconds (max 10 sec.) 1) balance feet together, 2) semi-tandem, 3) full-tandem stand. |
| Functional Test Battery ( FTB): Walk test ( 4 m) | Total FTB: 1 1/4 hours | Time in sec. |
| Functional Test Battery ( FTB): 1 leg stand | Total FTB: 1 1/4 hours | Time in sec. |
| Quantitative Muscle Testing | 15 Minutes | Hand Held Dynamometer in Newton |
| Functional Test Battery ( FTB): Jamar grip test | Total FTB: 1 1/4 hours | Strength in Kg. |
| Functional Test Battery ( FTB): Pile Test | Total FTB: 1 1/4 hours | Work = Joule & Performance = Watt |
| Functional Test Battery ( FTB): 6 Minute walk-test | Total FTB: 1 1/4 hours | Meters during 6 minutes |
| Modified Myositis Activity Profile | 30 Minutes | 34 item Questionnaire |
| Functional Test Battery ( FTB): Grip ability Test | Total FTB: 1 1/4 hours | Time in sec. (max 60 sec.) |
Countries
Switzerland
Outcome results
None listed