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Validation of Rehab Assessments in Myositis Patients

Completed
Conditions
Myositis
Registration Number
NCT03059394
Lead Sponsor
University of Zurich
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.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
50
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

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
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 Outcome Measures
NameTimeMethod
Functional Index 230 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 TestTotal FTB: 1 1/4 hours

Time in seconds (max 10 sec.) 1) balance feet together, 2) semi-tandem, 3) full-tandem stand.

Quantitative Muscle Testing15 Minutes

Hand Held Dynamometer in Newton

Functional Test Battery ( FTB): Walk test ( 4 m)Total FTB: 1 1/4 hours

Time in sec.

Modified Myositis Activity Profile30 Minutes

34 item Questionnaire

Functional Test Battery ( FTB): 1 leg standTotal FTB: 1 1/4 hours

Time in sec.

Functional Test Battery ( FTB): Grip ability TestTotal FTB: 1 1/4 hours

Time in sec. (max 60 sec.)

Functional Test Battery ( FTB): Jamar grip testTotal FTB: 1 1/4 hours

Strength in Kg.

Functional Test Battery ( FTB): Pile TestTotal FTB: 1 1/4 hours

Work = Joule \& Performance = Watt

Functional Test Battery ( FTB): 6 Minute walk-testTotal FTB: 1 1/4 hours

Meters during 6 minutes

Trial Locations

Locations (1)

University Hospital Zurich

🇨🇭

Zurich, Switzerland

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