Ankle-foot Orthoses for Peripheral Artery Disease
Efficacy of Ankle-Foot Orthoses on Walking Ability in Peripheral Artery Disease: The AFO for PAD Trial I
Przegląd badań
Status
Status
Warunki
Warunki
Interwencja / Leczenie
Interwencja / Leczenie
Szczegółowy opis
Typ studiów
Typ studiów
Zapisy (Rzeczywisty)
Zapisy
Faza
Faza
- Nie dotyczy
Kontakty i lokalizacje
Lokalizacje studiów
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Montana
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Missoula, Montana, Stany Zjednoczone, 59802
- International Heart Institute of Montana Foundation
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Kryteria uczestnictwa
Kryteria kwalifikacji
Kryteria kwalifikacji
Wiek uprawniający do nauki
Akceptuje zdrowych ochotników
Płeć kwalifikująca się do nauki
Opis
Inclusion Criteria:
- Men and women diagnosed with atherosclerotic peripheral arterial disease (PAD).
- Patients who experience calf claudication
- ≥40 years of age
- An abnormal ankle-brachial index (ABI) of ≤.90.
- For patients with an ABI >.90 and <1.00, a post-exercise ABI drop of 15% or more compared to the resting ABI
Exclusion Criteria:
- Lower extremity amputation(s) which interfere(s) with walking.
- Critical limb ischemia (i.e., ischemic rest pain, ulcers/gangrene on the lower extremities).
- Non-atherosclerotic PAD (e.g., popliteal entrapment syndrome, Takayasu's arteritis)
- Major surgical procedures that are contraindicated to an exercise program (e.g., recent organ transplant) or coronary artery bypass graft within 6 months prior to screening.
- Primarily limitations to exercise due to chronic obstructive pulmonary disease, angina or heart failure.
- Myocardial infarction within 3 months prior to screening.
- Acute coronary syndrome symptoms diagnosed at time of screening.
- Significant ischemic changes (documented on the 12-lead electrocardiogram) with horizontal or down-sloping ST-segment depression ≥ 0.5mm at rest and >1 mm with exercise in 3 beats for 2 contiguous leads, relative to the PR-segment (or ST-segment elevation ≥1mm).
- Transient ischemic attack or stroke 3 months prior to screening.
- New left bundle branch block or sustained ventricular tachycardia >30 seconds during screening.
- Uncontrolled hypertension defined as ≥180 systolic or ≥100 diastolic resting blood pressure during screening.
- Women who are pregnant (women of childbearing potential, a pregnancy test will be performed at screening.
- Individuals currently incarcerated.
- Evidence of acute impairment from alcohol or other illicit drugs.
- Lack of diabetes control (glycated hemoglobin >12%)
- Patients who are anemic (Hgb <11 g/dL for women and <10 g/dL for men).
- Any other clinically significant diseases (e.g., pulmonary, renal, psychiatric, immunological) that are not stabilized or may otherwise confound the results of the study.
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Nielosowe
- Model interwencyjny: Zadanie dla jednej grupy
- Maskowanie: Brak (otwarta etykieta)
Liczba ramion
Broń i interwencje
Grupa uczestników / ArmGrupa uczestników / Arm |
Interwencja / LeczenieInterwencja / Leczenie |
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Eksperymentalny: AFO to improve outcomes
Patients completed graded treadmill testing, followed by 12 weeks of unstructured community-based walking using the AFO ad libitum
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Ankle foot orthoses (AFO) are light-weight, low profile carbon fiber devices that store and release energy during ambulation.
The AFO, in combination with standard of care advice to walk more, will be used to determine if there is any improvement in PAD patient outcomes.
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Brak interwencji: Historical Controls
Historical PAD control group (n = 10) received upfront advice to walk at home with no intervention
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Co mierzy badanie?
Podstawowe miary wyniku
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
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Change in WIQ Distance Subscore
Ramy czasowe: 12 weeks
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In the Walking Impairment Questionnaire distance subcategory, participants are asked to rate the degree of difficulty walking specific distances on a scale from 0 to 4. A score of 0 indicates the inability to walk the distance specified by the question while a score of 4 represents no difficulty.
The graded sub-score is multiplied by a pre-specified weight for each sub-category: distance, speed, and number of flights of stairs.
The products of these subscores are summed and divided by the maximum possible score to obtain a percent score, ranging from 0 (inability to perform item) to 100 (no difficulty in performing item).
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12 weeks
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Change in WIQ Speed Subscore
Ramy czasowe: 12 weeks
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In the Walking Impairment Questionnaire speed subcategory, participants are asked to rate the degree of difficulty walking one block at specific speeds, ranging from walking slowly to jogging, on a scale from 0 to 4. A score of 0 indicates the inability to walk the distance specified by the question while a score of 4 represents no difficulty.
The graded sub-score is multiplied by a pre-specified weight for each sub-category: distance, speed, and number of flights of stairs.
The products of these subscores are summed and divided by the maximum possible score to obtain a percent score, ranging from 0 (inability to perform item) to 100 (no difficulty in performing item).
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12 weeks
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Change in WIQ Stair-Climbing Subscore
Ramy czasowe: 12 weeks
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In the Walking Impairment Questionnaire stair-climbing subcategory, participants are asked to rate the degree of difficulty climbing a specified number of stair flights, ranging from 1 to 3 stair flights, on a graded scale of 0 to 4. A score of 0 indicates the inability to climb the flights specified by the question while a score of 4 represents no difficulty.
The graded sub-score is multiplied by a pre-specified weight for each sub-category: distance, speed, and number of flights of stairs.
The products of these subscores are summed and divided by the maximum possible score to obtain a percent score, ranging from 0 (inability to perform item) to 100 (no difficulty in performing item).
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12 weeks
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Change in SF-36 PCS
Ramy czasowe: 12 weeks
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Change in Medical Outcomes Study Short Form 36-item questionnaire, Physical Component Summary The SF-36 has eight scaled subscores (Vitality, Physical functioning, Bodily pain, General health perceptions, Physical role functioning, Emotional role functioning, Social role functioning, Mental health).
These subscores are weighted sums of the questions in each section.
Scores range from 0 - 100.
Lower scores = more disability, higher scores = less disability.
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12 weeks
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Change in SF-36 MCS
Ramy czasowe: 12 weeks
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Change in Medical Outcomes Study Short Form 36-item questionnaire, Mental Component Summary The SF-36 has eight scaled subscores (Vitality, Physical functioning, Bodily pain, General health perceptions, Physical role functioning, Emotional role functioning, Social role functioning, Mental health).
These subscores are weighted sums of the questions in each section.
Scores range from 0 - 100.
Lower scores = more disability, higher scores = less disability.
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12 weeks
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Współpracownicy i badacze
Sponsor
Sponsor
Współpracownicy
Współpracownicy
Śledczy
Śledczy
- Główny śledczy: Ryan J. Mays, PhD, MPH, MS, International Heart Institute of Montana Foundation
Publikacje i pomocne linki
Przydatne linki
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów
Rozpoczęcie studiów
Zakończenie podstawowe (Rzeczywisty)
Zakończenie podstawowe
Ukończenie studiów (Rzeczywisty)
Ukończenie studiów
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Oszacować)
Pierwszy wysłany
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia wysłana aktualizacja
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
Inne numery identyfikacyjne badania
- Mays-2
- U54GM104944 (Grant/umowa NIH USA)
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
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