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Acute Blood Flow Restriction Walking on Immune Cell Phenotype and Function

3 ноября 2026 г. обновлено: Jonathan Little, University of British Columbia

Impact of Acute Blood Flow Restriction Walking on Immune Cell Phenotype and Function in Adults withT2D

To conduct a randomized control trial to determine the impact of acute blood flow restriction treadmill walking on immune cell counts, function, and phenotype in adults living with type 2 diabetes.

Обзор исследования

Статус

Рекрутинг

Условия

Вмешательство/лечение

Подробное описание

Participants will be randomized to a regular treadmill walking condition or treadmill walking with blood flow restriction (BFR) condition. In both groups participants will complete 32 minutes of treadmill walking at a speed and grade that elicit 40-50% heart rate reserve. In the BFR group the cuffs will be inflated based on each participants individualized limb occlusion pressure (LOP). The cuffs will remain inflated for the entire session but will deflate for 1 minute every 10 minutes based on safety recommendations. The percentage of LOP will 60%. Blood samples will be obtained pre-exercise (PRE), during the final 2 minutes of the final occlusion cycle (OCC), and 3 minutes into the recovery period post-exercise (POST) to measure outcomes.

Тип исследования

Интервенционный

Регистрация (Оцененный)

20

Фаза

  • Непригодный

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Контакты исследования

  • Имя: Jonathan P Little, PhD
  • Номер телефона: 250-807-9876
  • Электронная почта: jonathan.little@ubc.ca

Места учебы

    • British Columbia
      • Kelowna, British Columbia, Канада, V1V 1V7
        • Рекрутинг
        • University of British Columbia Okanagan
        • Контакт:
          • Jonathan P Little, PhD
          • Номер телефона: 250-807-9876
          • Электронная почта: jonathan.little@ubc.ca

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

От 19 лет до 64 года (Взрослый)

Принимает здоровых добровольцев

Нет

Полы, имеющие право на обучение

Все

Описание

Inclusion Criteria:

  • Aged 19-64 years
  • Diagnosed with type 2 diabetes with current HbA1c 5.7-9.0%
  • Completing <150 minutes of moderate-vigorous physical activity per week.

Exclusion Criteria:

  • Chronic musculoskeletal condition or recent (within 2 years) cardiovascular event preventing participation in exercise.
  • Unstable type 2 diabetes medication of the last 3 months
  • Absolute contraindications to BFR (i.e., peripheral vascular disease)
  • A self-reported diagnosis of low iron concentrations, anemia, or being treated for these conditions
  • A diagnosis of any red blood cell-altering condition (i.e., sickle cell anemia, poikilocytosis)
  • Currently living with any cardiovascular disease, which would impact the ability to participate in exercise safely
  • Currently prescribed any medication which would impact the ability to use a heart rate monitor to accurately track intensity

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Фундаментальная наука
  • Распределение: Рандомизированный
  • Интервенционная модель: Параллельное назначение
  • Маскировка: Нет (открытая этикетка)

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Экспериментальный: Treadmill walking with blood flow restriction

Treadmill walking with blood flow restriction.

Participants will complete 32 minutes of treadmill walking at a speed and grade that elicit 40-50% heart rate reserve. The cuffs will be inflated based on each participants individualized limb occlusion pressure (LOP). The cuffs will remain inflated for the entire session but will deflate for 1 minute every 10 minutes based on safety recommendations. The percentage of LOP will 60%.

Активный компаратор: Treadmill Walking

Treadmill walking.

Participants will complete 32 minutes of treadmill walking at a speed and grade that elicit 40-50% heart rate reserve.

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Change in white blood cell count before, during, and after exercise.
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The white blood cell count will be measured using a hematology analyzer before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Change in monocyte count before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The monocyte count will be measured using a hematology analyzer before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in neutrophil count before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The neutrophil count will be measured using a hematology analyzer before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in eosinophil count before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The eosinophil count will be measured using a hematology analyzer before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in CD66b+ expression before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The CD66b+ expression will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in CD11b+ expression before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The CD11b+ expression will be measured using flow cytometer before, during, and after exercise

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in CD63+ expression before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The CD63+ expression will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in % of classical monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The % of classical monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in % of intermediate monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The % of intermediate monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in % of non-classical monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The % of non-classical monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in TLR-4 expression on classical monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The TLR-4 expression on classical monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in TLR-4 expression on intermediate monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The TLR-4 expression on intermediate monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in TLR-4 expression on non-classical monocytes before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The TLR-4 expression on non-classical monocytes will be measured using flow cytometry before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in plasma IL-6 before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The plasma IL-6 concentration will be measured using a multiplex assay before, during, and after exercise

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in plasma IL-10 before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The plasma IL-10 concentration will be measured using a multiplex assay before, during, and after exercise.

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in plasma TNF-α before, during, and after exercise
Временное ограничение: Pre-exercise, during 32 minute of exercise, immediately post-exercise

The plasma TNF-α concentration will be measured using a multiplex assay before, during, and after exercise

Pre-exercise, during 32 minute of exercise, immediately post-exercise
Change in 4-h LPS-induced TNF-α before and after exercise
Временное ограничение: Pre-exercise, immediately post-exercise

The LPS-induced TNF-α concentration will be measured from whole-blood culture supernatant using an ELISA before and after exercise.

Pre-exercise, immediately post-exercise
Change in 4-h LPS+IL10-induced TNF-α before and after exercise
Временное ограничение: Pre-exercise, immediately post-exercise

The LPS+IL10-induced TNF-α concentration will be measured from whole-blood culture supernatant using an ELISA before and after exercise.

Pre-exercise, immediately post-exercise

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Спонсор

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования (Действительный)

11 февраля 2026 г.

Первичное завершение (Оцененный)

31 декабря 2027 г.

Завершение исследования (Оцененный)

31 декабря 2027 г.

Даты регистрации исследования

Первый отправленный

23 июня 2026 г.

Впервые представлено, что соответствует критериям контроля качества

3 ноября 2026 г.

Первый опубликованный (Действительный)

10 ноября 2026 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

10 ноября 2026 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

3 ноября 2026 г.

Последняя проверка

1 ноября 2026 г.

Дополнительная информация

Термины, связанные с этим исследованием

Другие идентификационные номера исследования

  • H25-02870 acute

Планирование данных отдельных участников (IPD)

Планируете делиться данными об отдельных участниках (IPD)?

НЕТ

Информация о лекарствах и устройствах, исследовательские документы

Изучает лекарственный продукт, регулируемый FDA США.

Нет

Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.

Нет

Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .