Innflytelsen av kortikal lateralisering på selektiv motorisk kontroll av armsvingen under uavhengig gange etter et slag.
The upper limbs play an essential role for safe and efficient walking in healthy persons and persons post-stroke. Nevertheless, in current post-stroke gait rehabilitation (research) the upper limbs are barely targeted. To address this gap, my project aims to investigate the selective motor control of the upper limbs during walking and the contribution of the cortical activity to the arm swing in independent walkers after stroke.
To gain insight in the direct effects of stroke on the arm swing, the primary motor control of the arm swing will be evaluated by determining muscle synergies (i.e group of muscles working together as a task-specific functional unit). Additionally, the cortical activity (EEG-analysis) during walking of persons post-stroke will be compared to healthy controls and the relationship between stroke-induced changes in cortical activity and arm swing deviations will be assessed. Furthermore, I will evaluate whether improvements in cortical activity relate to improvements in primary motor control of the arm swing.
This innovative project will be the first to investigate the direct coupling between the cortex and the muscle synergies in persons post-stroke during independent walking to investigate the arm swing. These fundamental insights in the primary motor control of the arm swing and the contribution of the cortical activity will allow to develop targeted interventions aiming to improve arm swing and as such optimize post-stroke gait rehabilitation.
Research questions:
- How can muscle synergies explain arm swing alterations in independent walkers after stroke?
- How do stroke-induced changes in cortical activity relate to arm swing deviations in persons after stroke?
- Are changes in primary motor control of the upper limb during walking related to normalization of brain activity in independent walkers after stroke?
Studieoversikt
Studietype
Registrering (Antatt)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
- Navn: Anke Van Bladel, PhD
- Telefonnummer: 09 332 12 43
- E-post: Anke.VanBladel@UGent.be
Studer Kontakt Backup
- Navn: Arne Defour, Msc.
- Telefonnummer: 09 332 12 43
- E-post: Arne.Defour@UGent.be
Studiesteder
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Diepenbeek, Belgia, 3590
- Rekruttering
- UHasselt - Faculteit Revalidatiewetenschappen
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Ta kontakt med:
- Arne Defour
- Telefonnummer: 093321243
- E-post: arne.defour@ugent.be
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Ta kontakt med:
- Sophie De Mits
- Telefonnummer: 093321243
- E-post: Sophie.DeMits@UGent.be
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Oost-Vlaanderen
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Ghent, Oost-Vlaanderen, Belgia
- Rekruttering
- Ghent University Hospital
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Hovedetterforsker:
- Arne Defour, Msc.
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Ta kontakt med:
- Anke Van Bladel, PhD
- Telefonnummer: 093321243
- E-post: Sophie.DeMits@UGent.be
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Stroke
Inclusion Criteria:
- First-ever and cerebral stroke
- Able to walk at least 10 minutes (FAC ≥ 3)
- Presence of upper limb paresis (NIHSS item 5a/b > 0)
Exclusion Criteria:
- Other neurological disorders
Healthy controls
Inclusion criteria:
- Older than 18 years
- Able to walk at least 10 minutes
Exlusion criteria:
- Pregnancy
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Annen
- Tildeling: Ikke-randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Stroke
Persons with a unilateral first ever stroke |
Participants have to walk without holding handrails and without bodyweight support for at least 200 gait cycles. They are asked to walk at comfortable walking speed while watching forward to a screen without virtual reality projection. Arm should be next to the body to allow arm swing if possible. |
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Aktiv komparator: Control
Age and gender matched healthy controls |
Participants have to walk without holding handrails and without bodyweight support for at least 200 gait cycles. They are asked to walk at comfortable walking speed while watching forward to a screen without virtual reality projection. Arm should be next to the body to allow arm swing if possible. |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of muscle synergies
Tidsramme: Single point of assessment at inclusion
|
The number of muscle synergies needed to account for 90% variance in muscle activity measured by surface EMG during walking in stroke survivors compared to healthy controls. Following muscles will be examined:
|
Single point of assessment at inclusion
|
|
Number of muscle synergies
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
The number of muscle synergies needed to account for 90% variance in muscle activity measured by surface EMG during walking in stroke survivors after a follow-up period of three months. Following muscles will be examined:
|
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
|
Weight of muscle synergies
Tidsramme: Single point of assessment at inclusion
|
The number or distribution of muscle weightings within a synergy during walking in stroke survivors compared to healthy controls. The distribution of muscle activation averages over one gait cycle measured by surface EMG of following muscles:
|
Single point of assessment at inclusion
|
|
Weight of muscle synergies
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
The number or distribution of muscle weightings within a synergy during walking in stroke survivors after a follow-up period of three months. The distribution of muscle activation averages over one gait cycle measured by surface EMG of following muscles:
|
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
|
Brain symmetry index (BSI)
Tidsramme: Single point of assessment at inclusion
|
The amount of cortical lateralization during walking in stroke survivors compared to healthy controls. The score ranges from -1 to +1 with BSI = 0 reprenting perfect symmetry. Positive values represent higher power in the right hemishere compared to the left hemisphere, vice versa for negative values. For left side lesions, BSI was multiplied by -1. |
Single point of assessment at inclusion
|
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Brain symmetry index (BSI)
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
The amount of cortical lateralization during walking in stroke survivors after a follow-up period of three months. The score ranges from -1 to +1 with BSI = 0 reprenting perfect symmetry. Positive values represent higher power in the right hemishere compared to the left hemisphere, vice versa for negative values. For left side lesions, BSI was multiplied by -1. |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Upper limb kinematics
Tidsramme: Single point of assessment at inclusion
|
Movements of the upper limb during walking measured by 3D kinematics and expressed as angles (°) |
Single point of assessment at inclusion
|
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Upper limb kinematics
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Movements of the upper limb during walking measured by 3D kinematics and expressed as angles (°) |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
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Cortico-synergy coherence
Tidsramme: Single point of assessment at inclusion
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The amount of coherence (i.e. phase locking) between the muscle synergies and cortical activity during walking in stroke survivors compared to healthy controls. Higher values (0-1) indicate a better linear association. |
Single point of assessment at inclusion
|
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Cortico-synergy coherence
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
The amount of coherence (i.e phase locking) between the muscle synergies and cortical activity during walking in stroke survivors after a follow-up period of three months. Higher values (0-1) indicate a better linear association. |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
National Institutes of Health Stroke Scale (NIHSS)
Tidsramme: Single point of assessment at inclusion (only for stroke survivors)
|
Quantifies the impairment caused by a stroke. The NIHSS is composed of 11 items, each of which scores a specific ability between a 0 and 4. For each item, a score of 0 typically indicates normal function in that specific ability, while a higher score is indicative of some level of impairment. The highest score is 42. |
Single point of assessment at inclusion (only for stroke survivors)
|
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National Institutes of Health Stroke Scale (NIHSS)
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Quantifies the general impairment caused by a stroke after a follow-up period of three months. The NIHSS is composed of 11 items, each of which scores a specific ability between a 0 and 4. For each item, a score of 0 typically indicates normal function in that specific ability, while a higher score is indicative of some level of impairment. The highest score is 42. |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
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Fugl-Meyer assesment - Upper limbs
Tidsramme: Single point of assessment at inclusion (only for stroke survivors)
|
Assesses specifc motor impairments of the upper limbs of stroke survivors. The Fugl-Meyer Assessment scale is an ordinal scale that has 3 points for each item. A zero score is given for the item if the subject cannot do the task. A score of 1 is given when the task is performed partially and a score of 2 is given when the task is performed fully. However, reflex activity is measured using 2 points only, with a score of 0 or 2 for absence and presence of reflex respectively. |
Single point of assessment at inclusion (only for stroke survivors)
|
|
Fugl-Meyer assesment - Upper limbs
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Assesses specifc motor impairments of the upper limbs of stroke survivors after a follow-up period of three months. The Fugl-Meyer Assessment scale is an ordinal scale that has 3 points for each item. A zero score is given for the item if the subject cannot do the task. A score of 1 is given when the task is performed partially and a score of 2 is given when the task is performed fully. However, reflex activity is measured using 2 points only, with a score of 0 or 2 for absence and presence of reflex respectively. |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
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Tardieu scale
Tidsramme: Single point of assessment at inclusion (only for stroke survivors)
|
Quantifies spasticity by assessing the muscle's response (0-5) to different stretch velocities (V1, V2 or V3) and by determining the spasticity angle (R1 or R2). |
Single point of assessment at inclusion (only for stroke survivors)
|
|
Tardieu scale
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Quantifies spasticity by assessing the muscle's response (0-5) to different stretch velocities (V1, V2 or V3) and by determining the spasticity angle (R1 or R2). |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
|
10 Meter Walking Test
Tidsramme: Single point of assessment at inclusion (only for stroke survivors)
|
Examins the walking capacity of a stroke survivor by measuring how long it takes to walk a distance of 10 meters (in seconds). |
Single point of assessment at inclusion (only for stroke survivors)
|
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10 Meter Walking Test
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Examins the walking capacity of a stroke survivor by measuring how long it takes to walk a distance of 10 meters (in seconds). |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
|
Fugl-Meyer assesment - Lower limbs
Tidsramme: Single point of assessment at inclusion (only for stroke survivors)
|
Assesses specifc motor impairments of the lower limbs of stroke survivors. The Fugl-Meyer Assessment scale is an ordinal scale that has 3 points for each item. A zero score is given for the item if the subject cannot do the task. A score of 1 is given when the task is performed partially and a score of 2 is given when the task is performed fully. However, reflex activity is measured using 2 points only, with a score of 0 or 2 for absence and presence of reflex respectively. |
Single point of assessment at inclusion (only for stroke survivors)
|
|
Fugl-Meyer assesment - Lower limbs
Tidsramme: Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Assesses specifc motor impairments of the lower limbs of stroke survivors after a follow-up period of three months. The Fugl-Meyer Assessment scale is an ordinal scale that has 3 points for each item. A zero score is given for the item if the subject cannot do the task. A score of 1 is given when the task is performed partially and a score of 2 is given when the task is performed fully. However, reflex activity is measured using 2 points only, with a score of 0 or 2 for absence and presence of reflex respectively. |
Single point of assessment 3 months after inclusion (only for stroke survivors)
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Anke Van Bladel, PhD, Ghent University and Ghent University Hospital
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- ONZ-2024-0089
- 11PEU24N (Annet stipend/finansieringsnummer: FWO)
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