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Acute Blood Flow Restriction Walking on Immune Cell Phenotype and Function

3. November 2026 aktualisiert von: 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.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

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.

Studientyp

Interventionell

Einschreibung (Geschätzt)

20

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

  • Kanada
    • British Columbia
      • Kelowna, British Columbia, Kanada, V1V 1V7
        • Rekrutierung
        • University of British Columbia Okanagan
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

19 Jahre bis 64 Jahre (Erwachsene)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

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

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Grundlegende Wissenschaft
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Treadmill walking with blood flow restriction

Treadmill walking with blood flow restriction.
Sonstiges: Exercise with BFR

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%.
Aktiver Komparator: Treadmill Walking

Treadmill walking.
Sonstiges: Exercise

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

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in white blood cell count before, during, and after exercise.
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in monocyte count before, during, and after exercise
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of British Columbia

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

11. Februar 2026

Primärer Abschluss (Geschätzt)

31. Dezember 2027

Studienabschluss (Geschätzt)

31. Dezember 2027

Studienanmeldedaten

Zuerst eingereicht

23. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

3. November 2026

Zuerst gepostet (Tatsächlich)

10. November 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

10. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

3. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • H25-02870 acute

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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