Document Detail

Validity of the EK scale: a functional assessment of non-ambulatory individuals with Duchenne muscular dystrophy or spinal muscular atrophy.
MedLine Citation:
PMID:  11725594     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND PURPOSE: The EK scale comprises ten categories (EK 1-10), each contributing to an overall picture of function in the non-ambulatory stage of Duchenne muscular dystrophy (DMD). The purpose of the present study was to investigate content and construct validity of the EK scale as a tool to discriminate between levels of functional ability in individuals with DMD or spinal muscular atrophy (SMA) who were non-ambulatory. METHOD: Data from a sample of 56 subjects with DMD and 38 with SMA, who were non-ambulatory, were obtained from four separate studies. The relationship of functional ability by use of the EK scale and (1) muscle strength, (2) contractures, (3) forced vital capacity and (4) years of wheelchair dependency were assessed. All items of the EK scale were used except the one representing severe hypoventilation. RESULTS: Regression analyses showed that the EK sum was the most significant explanatory variable (p < 0.05) of all variables measured to explain muscle strength in both DMD and SMA subjects. The individual categories of EK (1-10) all contributed as significant explanatory variables (p < 0.05) to the other variables measured. CONCLUSIONS: The categories and items of the EK scale were relevant and valid as means of discriminating between levels of functional performance in the population studied which was evidence of content and construct validity.
B Steffensen; S Hyde; S Lyager; E Mattsson
Related Documents :
18485254 - Evaluation of surgeons' marking of excision margins for superficial facial skin cancer ...
23619184 - Are older adults who volunteer to participate in an exercise study fitter and healthier...
15673144 - The mechanism of class ii correction in surgical orthodontic treatment of adult class i...
24567684 - Comparative analysis of acromiohumeral distances according to the locations of the arms...
16880894 - Democratization and political change as threats to collective sentiments: testing durkh...
8860934 - Update on vestibular rehabilitation therapy.
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Physiotherapy research international : the journal for researchers and clinicians in physical therapy     Volume:  6     ISSN:  1358-2267     ISO Abbreviation:  Physiother Res Int     Publication Date:  2001  
Date Detail:
Created Date:  2001-11-29     Completed Date:  2004-04-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9612022     Medline TA:  Physiother Res Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  119-34     Citation Subset:  IM    
Institute for Neuromuscular Diseases, Denmark.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Activities of Daily Living / classification*
Cohort Studies
Disability Evaluation*
Middle Aged
Muscle Weakness / physiopathology*
Muscular Atrophy, Spinal / diagnosis*,  rehabilitation
Muscular Dystrophy, Duchenne / diagnosis*,  rehabilitation
Regression Analysis
Risk Assessment
Sensitivity and Specificity
Severity of Illness Index
Vital Capacity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  On the efficiency of public, welfare and private hospitals in Germany over time: a sectoral data env...
Next Document:  The recovery of walking ability and subclassification of stroke.