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Does More Practice Improve Arm Movement After Stroke?

3. ledna 2017 aktualizováno: Catherine E. Lang, Washington University School of Medicine

Dose Response of Movement Practice During Stroke Rehabilitation

Arm weakness happens a lot after a stroke. People often get physical or occupational therapy after their stroke to learn how to use their arm again. This study will help figure out how much therapy should be given to restore as much arm function as possible.

Přehled studie

Postavení

Dokončeno

Podmínky

Intervence / Léčba

Detailní popis

Dose has emerged as a key factor promoting functional recovery after stroke. Currently, a lack of data on the dose-response relationship impedes progress in the field of stroke rehabilitation. The goal of the proposed project is to define the range of doses of movement practice that produce the greatest improvements in outcomes in people with chronic stroke. Borrowing from animal models of stroke, dose in humans can be quantified by the number of repetitions of task-specific practice.

Our central hypothesis is that there exists a range of doses for people with stroke, below which, there is minimal benefit, and above which, further practice does not result in further benefit. The range of beneficial doses is likely to vary based on the severity of motor deficits and the presence of non-motor deficits in other domains. Using a randomized, parallel dose-response design, we will evaluate the benefits of four different doses of task-specific upper extremity training with matched schedules of 1 hr sessions, 4 sessions/wk for 8 wks, in 100 people with chronic stroke. Total repetition doses to be evaluated (3200, 6400, 9600, & individualized-maximum) are based on our preliminary data. The individualized-maximum group may extend their sessions beyond 8 wks until meeting defined stop criteria.

Our primary aim will test whether larger total doses result in better outcomes than smaller total doses. Benefits of the four doses will be evaluated at the impairment, activity, and participation levels, since understanding the dose-response relationship at all levels of measurement is critical for advancing rehabilitation research. We hypothesize that improvements will be greatest in the 9600 and individualized-maximum, followed by the 6400, and then the 3200 repetition dose groups. Our secondary aim is to characterize the dose-response relationship of upper extremity task-specific practice. With data from multiple assessment points, individual curve modeling will be used to estimate dose ranges, below which, there is minimal benefit, and above which, further practice does not result in further benefit. Furthermore, we will determine how various factors modify the dose estimates. We hypothesize that the severity of motor deficits will be the primary modifier of the dose-response relationship, with larger doses needed for those with more mild motor deficits. We further expect that needed doses will be larger for those with depression and hemispatial neglect.

Our team is well-positioned to investigate the critical issue of dose because of our expertise in stroke rehabilitation research and measurement, our understanding of the challenges of clinical practice and clinical research, and our ready access to this patient population. Expected outcomes from this project are empirically-driven estimates indicating the amount of movement practice required to drive maximal improvements and how these estimates can be individually modified for people undergoing stroke rehabilitation. Our estimates will immediately impact rehabilitation research and clinical practice. The importance of this project transcends stroke rehabilitation; our primary results will be of high value to many other rehabilitation populations also impeded by the lack of knowledge regarding dose-response relationships.

Typ studie

Intervenční

Zápis (Aktuální)

85

Fáze

  • Fáze 2

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní místa

    • Missouri
      • St. Louis, Missouri, Spojené státy, 63108
        • Washington University School of Medicine

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  • Ischemic or hemorrhagic stroke as determined by a stroke neurologist and consistent with neuroimaging
  • Time since stroke will include subjects 6-months or more post-stroke
  • Cognitive skills to actively participate (score of 0-1 on items 1b and 1c of the NIH Stroke Scale (NIHSS)
  • Unilateral upper extremity weakness (score of 1-3 on item 5 (arm item) on the NIHSS)

Exclusion Criteria:

  • Subject unavailable for 2-month follow-up
  • Inability to follow-2-step commands
  • Psychiatric diagnoses
  • Current participation in other stroke treatment (i.e.- Botox)
  • Other neurological diagnoses
  • If participant lives further than one hour away and is unwilling to travel for assessment and treatment sessions.
  • Pregnancy

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Singl

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Low Movement Dose, 3200 total reps
he experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
The experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
Experimentální: Medium Movement Dose, 6400 total reps
he experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
The experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
Experimentální: High Movement Dose, 9600 total reps
he experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
The experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
Experimentální: Individual Maximum High Movement Dose
he experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.
The experimental intervention consists of intensive task-specific upper extremity movement rehabilitation which are appropriately graded and progressed for each subject. This intervention will provide progressive training of these essential components required for upper extremity movement through repeated practice of various tasks, with the desired goal of building the subject's capacity to perform a multitude of UE functions. Subjects will participate in the intervention for eight weeks or more depending on the group they are randomized to.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in Action Research Arm Test (ARAT) Score Per Week
Časové okno: 9 weeks
The Action Research Arm Test (ARAT) is a standardized assessment of upper extremity functional capacity. Criterion scores are awarded by a trained assessor as the person performs 19 different items requiring reaching, grasping, and manipulation of various objects. Maximum total score is 57. Minimum total score is 0. Higher scores represent better arm and hand functional capacity. In this study, scores were assesses weekly and the analysis evaluated the rate of change over time in units/week.
9 weeks

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Vyšetřovatelé

  • Vrchní vyšetřovatel: Catherine E Lang, PT, PhD, Washington University School of Medicine

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia

1. května 2010

Primární dokončení (Aktuální)

1. října 2015

Dokončení studie (Aktuální)

1. října 2015

Termíny zápisu do studia

První předloženo

3. června 2010

První předloženo, které splnilo kritéria kontroly kvality

15. června 2010

První zveřejněno (Odhad)

17. června 2010

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

24. února 2017

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

3. ledna 2017

Naposledy ověřeno

1. ledna 2017

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • 10-0230

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

Ne

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

produkt vyrobený a vyvážený z USA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .