Peter Feys

Prof. Peter Feys

UHasselt, Faculty of Rehabilitation Sciences
orcid

Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 February 2017 in Multiple Sclerosis Journal
Verified
Journal Article
Open access
PFPeter Feys
Peter Feys
ILIlse Lamers
Ilse Lamers
GFGordon Francis
Gordon Francis
RBRalph Benedict
Ralph Benedict
GPGlenn Phillips
Glenn Phillips
MCMultiple Sclerosis Outcome Assessments Consortium
Multiple Sclerosis Outcome Assessments Consortium
Impaired manual dexterity is a frequently reported disability in people with multiple sclerosis (MS) and is increasingly prevalent with worsening disease. While various tests and patient-reported outcome measures are available, the Nine-Hole Peg Test (NHPT) is considered as a gold standard measure of manual dexterity and most frequently used in MS research and clinical practice. The MS Outcome Assessments Consortium (MSOAC) includes representatives from advocacy organizations, Food and Drug Administration (FDA), European Medicines Agency (EMA), National Institute of Neurological Disorders and Stroke (NINDS), academic institutions, and industry partners along with persons living with MS. Among the MSOAC goals are acceptance and qualification by regulators of performance outcomes that are highly reliable and valid, practical, cost-effective, and meaningful to persons with MS. A critical step for these neuroperformance metrics is elucidation of clinically relevant benchmarks, well-defined degrees of disability, and gradients of change that are deemed clinically meaningful. This article addresses the NHPT, the proposed MSOAC measure for upper extremity function. We find that the NHPT is reliable within and between test sessions, discriminates between healthy subjects and MS patients with different levels of upper limb impairment, and shows high convergent validity with other manual dexterity as well as more comprehensive upper limb measures. Ecological validity is established by its relation to perceived upper limb use in daily life and perceived difficulty in performing activities of daily living. The NHPT is responsive to deterioration in longitudinal studies, and research suggests that a 20% change in test score is commonly used to define clinically meaningful worsening, a definition that needs further validation in all stages of the disease.

1 October 2017 in The Lancet Neurology
Verified
Journal Article
Closed access
Robert MotlRobert Motl
Robert Motl
BSBrian Sandroff
Brian Sandroff
GKGert Kwakkel
Gert Kwakkel
UDUlrik Dalgas
Ulrik Dalgas
AFAnthony Feinstein
Anthony Feinstein
ATAlan J Thompson
Alan J Thompson

1 April 2017 in Neuroscience & Biobehavioral Reviews
Verified
Journal Article
Closed access
CLCarmela Leone
Carmela Leone
PFPeter Feys
Peter Feys
LMLousin Moumdjian
Lousin Moumdjian
EDEmanuele D'amico
Emanuele D'amico
MZMario Zappia
Mario Zappia
FPFrancesco Patti
Francesco Patti

6 February 2014 in Neurorehabilitation and Neural Repair
Verified
Journal Article
Closed access
IBIlse Baert
Ilse Baert
JFJennifer Freeman
Jennifer Freeman
TSTori Smedal
Tori Smedal
UDUlrik Dalgas
Ulrik Dalgas
ARAnders Romberg
Anders Romberg
PFPeter Feys
Peter Feys
Background. Evaluation of treatment effects on walking requires appropriate and responsive outcome measures. Objectives. To determine responsiveness of 5 walking measures and provide reference values for clinically meaningful improvements, according to disability level, in persons with multiple sclerosis (pwMS). Methods. Walking tests were measured pre- and postrehabilitation in 290 pwMS from 17 European centers. Combined anchor- and distribution-based methods determined responsiveness of objective short and long walking capacity tests (Timed 25-Foot Walk [T25FW] and 2- and 6-Minute Walk Tests [2MWT and 6MWT] and of the patient-reported Multiple Sclerosis Walking Scale–12 [MSWS-12]). A global rating of change scale, from patients’ and therapists’ perspective, was used as external criteria to determine the area under the receiver operating characteristic curve (AUC), minimally important change (MIC), and smallest real change (SRC). Patients were stratified into disability subgroups (Expanded Disability Status Scale score ≤4 [n = 98], >4 [n = 186]). Results. MSWS-12, 2MWT, and 6MWT were more responsive (AUC 0.64-0.73) than T25FW (0.50-0.63), especially in moderate to severely disabled pwMS. Clinically meaningful changes (MICs) from patient and therapist perspective were −10.4 and −11.4 for MSWS-12 (P < .01), 9.6 m and 6.8 m for 2MWT (P < .05), and 21.6 m (P < .05) and 9.1 m (P = .3) for 6MWT. In subgroups, MIC was significant from patient perspective for 2MWT (10.8 m) and from therapist perspective for MSWS-12 (−10.7) in mildly disabled pwMS. In moderate to severely disabled pwMS, MIC was significant for MSWS-12 (−14.1 and −11.9). Conclusions. Long walking tests and patient-reported MSWS-12 were more appropriate than short walking tests in detecting clinically meaningful improvement after physical rehabilitation, particularly the MSWS-12 for moderate to severely disabled pwMS.

11 March 2015 in BMC Neurology
Verified
Journal Article
Open access
PDF file
MMMargit Alt Murphy
Margit Alt Murphy
CRCarol Resteghini
Carol Resteghini
PFPeter Feys
Peter Feys
ILIlse Lamers
Ilse Lamers
Although use of standardized and scientifically sound outcome measures is highly encouraged in clinical practice and research, there is still no clear recommendation on which tools should be preferred for upper extremity assessment after stroke. As the aims, objectives and methodology of the existing reviews of the upper extremity outcome measures can vary, there is a need to bring together the evidence from existing multiple reviews. The purpose of this review was to provide an overview of evidence of the psychometric properties and clinical utility of upper extremity outcome measures for use in stroke, by systematically evaluating and summarizing findings from systematic reviews. A comprehensive systematic search was performed including systematic reviews from 2004 to February 2014. A methodological quality appraisal of the reviews was performed using the AMSTAR-tool. From 13 included systematic reviews, 53 measures were identified of which 13 met the standardized criteria set for the psychometric properties. The strongest level of measurement quality and clinical utility was demonstrated for Fugl-Meyer Assessment, Action Research Arm Test, Box and Block Test, Chedoke Arm and Hand Activity Inventory, Wolf Motor Function Test and ABILHAND. This overview of systematic reviews provides a comprehensive systematic synthesis of evidence on which outcome measures demonstrate a high level of measurement quality and clinical utility and which can be considered as most suitable for upper extremity assessment after stroke. This overview can provide a valuable resource to assist clinicians, researchers and policy makers in selection of appropriate outcome measures.

24 January 2011 in Journal of NeuroEngineering and Rehabilitation
Verified
Journal Article
Open access
PDF file
DGDomien Gijbels
Domien Gijbels
ILIlse Lamers
Ilse Lamers
LKLore Kerkhofs
Lore Kerkhofs
GAGeert Alders
Geert Alders
EKEls Knippenberg
Els Knippenberg
PFPeter Feys
Peter Feys
Few research in multiple sclerosis (MS) has focused on physical rehabilitation of upper limb dysfunction, though the latter strongly influences independent performance of activities of daily living. Upper limb rehabilitation technology could hold promise for complementing traditional MS therapy. Consequently, this pilot study aimed to examine the feasibility of an 8-week mechanical-assisted training program for improving upper limb muscle strength and functional capacity in MS patients with evident paresis.