Impact of Training on Gait and Strength in Stroke Survivors
Gait Performance and Lower-limb Muscle Strength Improved in Both Upper-limb and Lower-limb Isokinetic Training Programs in Individuals With Chronic Stroke
Background: A discrepancy between strength gain and gait changes following various training programs aimed at improving gait function after stroke has been noted. A mismatch between the training program and gait parameters could explain this finding.
Objective: To evaluate the impact of an isokinetic-strengthening program, matching the requirements of the affected lower-limb muscle groups involved in the energy generation of gait, to a control intervention, on gait performance and muscle strength.
Hypothesis: The isokinetic training program of the affected lower-limb muscles would produce greater changes in gait performance and strength than a control intervention not aiming at training these muscle groups.
Design: Single-blinded randomized controlled trial.
Participants: A convenient sample of 30 individuals with chronic hemiparesis.
Interventions: Participants were randomly assigned into two groups (n=15), each training three times/week for six weeks. The experimental group trained the affected plantarflexors, hip flexors and extensors concentrically, while the control group trained the affected upper-limb muscles.
Main outcome measures: Baseline values and post-training values, taken at the end of the training program, of maximal voluntary concentric strength, gait speed and peak positive power.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Quebec
-
Montréal, Quebec, Canada, H3S 1M9
- Institut de réadaptation Gingras-Lindsay
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- have a chronic (six months or more) unilateral stroke
- be able to walk 10 meters independently with or without a cane
- present residual weakness at the affected lower limb
- have an activity tolerance of at least two hours with a rest period
Exclusion Criteria:
- receptive aphasia
- incontinence
- unstable medical condition
- history of injury
- anesthesia at the lower limbs
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: isokinetic lower-limb training
3 times/week for 6 weeks
|
concentric training of the affected plantarflexors, hip flexors and hip extensors
|
|
Placebo komparator: isokinetic uppe-limb training
3 times/week for 6 weeks
|
concentric training of the affected wrist extensors, elbow flexors and shoulder flexors
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
change in gait speed
Tidsramme: gait speed was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
change in gait speed, in meter/second, was assessed as the difference between the baseline and week #7 values.
|
gait speed was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
|
change in peak positive power
Tidsramme: peak positive power was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
peak positive power was evaluated at the affected plantarflexors, hip flexors and hip extensors.
Also, change in peak positive power, in weight/kilogram, was assessed as the difference between the baseline and week #7 values.
|
peak positive power was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
change in maximal voluntary concentric strength
Tidsramme: maximal voluntary concentric strength was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
maximal voluntary concentric strength was evaluated at the affected plantarflexors, hip flexors and hip extensors.
Also, change in maximal voluntary concentric strength, in Newton-metre, was assessed as the difference between the baseline and week #7 values.
|
maximal voluntary concentric strength was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Sylvie Nadeau, PhD, Université de Montréal
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- IRSC-44059
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