TY - JOUR
T1 - Reliability and Validity of a New Diagnostic Device for Quantifying Hemiparetic Arm Impairments
T2 - An Exploratory Study
AU - van der Velden, Levinia Lara
AU - Benner, Joyce Lisanne
AU - Onneweer, Bram
AU - Haarman, Claudia Josephina Wilhelmina
AU - Selles, Ruud
AU - Ribbers, Gerard
AU - Roebroeck, Marij Eugenie
N1 - Funding Information:
This project was supported by Hankamp Rehab, Rijndam Rehabilitation and a PPP Allowance made available by Health~Holland, Top Sector Life Sciences & Health (grant number LSHM16030-H002).
Funding Information:
The authors thank all the study participants for their contribution, and Wilma van der Slot (MD PhD), Marjolein van de Spek (OT), Marc Evers (PT), and Raphaela Imkamp (research assistant) of Rijndam Rehabilitation for recruiting adults with CP and poststroke patients for this study. This project was supported by Hankamp Rehab, Rijndam Rehabilitation and a PPP Allowance made available by Health~Holland, Top Sector Life Sciences & Health (grant number LSHM16030-H002).
Publisher Copyright:
© 2022 Foundation for Rehabilitation Information. All rights reserved.
PY - 2022/5/11
Y1 - 2022/5/11
N2 - OBJECTIVE: To assess test-retest reliability and validity of a new diagnostic device, the Shoulder Elbow Perturbator, to quantify muscle weakness, abnormal synergy, (muscle activity-related) spasticity, and changes in viscoelastic joint properties of the elbow. SUBJECTS: Stroke patients, adults with cerebral palsy and healthy controls. METHODS: Test-retest reliability was evaluated using intra-class correlations (ICC) and assessment of measurement error. The device's validity was evaluated by demonstrating differences between patients and healthy controls, and correlations of spasticity and abnormal synergy outcomes using the clinical Modified Tardieu Scale, the Fugl-Meyer Assessment, and the Test of Arm Selective Control. RESULTS: Reliability was excellent, with an ICC > 0.75 for synergy and ICCs > 0.90 for all other impairments, with relatively small measurement errors. Validity was confirmed by group differences between patients and healthy controls for muscle weakness, spasticity, and viscoelastic joint properties, but not for abnormal synergy. Correlation analysis with clinical scales confirmed validity for spasticity, while, for synergy, correlations were found in the patients with stroke, but not those with cerebral palsy. CONCLUSION: This new diagnostic device is a reliable and valid instrument to assess multiple upper limb impairments in patients with neurological conditions, supporting its use in clinical practice. Further studies are needed to confirm these findings.
AB - OBJECTIVE: To assess test-retest reliability and validity of a new diagnostic device, the Shoulder Elbow Perturbator, to quantify muscle weakness, abnormal synergy, (muscle activity-related) spasticity, and changes in viscoelastic joint properties of the elbow. SUBJECTS: Stroke patients, adults with cerebral palsy and healthy controls. METHODS: Test-retest reliability was evaluated using intra-class correlations (ICC) and assessment of measurement error. The device's validity was evaluated by demonstrating differences between patients and healthy controls, and correlations of spasticity and abnormal synergy outcomes using the clinical Modified Tardieu Scale, the Fugl-Meyer Assessment, and the Test of Arm Selective Control. RESULTS: Reliability was excellent, with an ICC > 0.75 for synergy and ICCs > 0.90 for all other impairments, with relatively small measurement errors. Validity was confirmed by group differences between patients and healthy controls for muscle weakness, spasticity, and viscoelastic joint properties, but not for abnormal synergy. Correlation analysis with clinical scales confirmed validity for spasticity, while, for synergy, correlations were found in the patients with stroke, but not those with cerebral palsy. CONCLUSION: This new diagnostic device is a reliable and valid instrument to assess multiple upper limb impairments in patients with neurological conditions, supporting its use in clinical practice. Further studies are needed to confirm these findings.
UR - http://www.scopus.com/inward/record.url?scp=85129998712&partnerID=8YFLogxK
U2 - 10.2340/jrm.v54.12
DO - 10.2340/jrm.v54.12
M3 - Article
C2 - 35362087
AN - SCOPUS:85129998712
SN - 1650-1977
VL - 54
JO - Journal of rehabilitation medicine
JF - Journal of rehabilitation medicine
IS - 12
M1 - jrm00283
ER -
