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6-Weeks of Blood Flow Restriction Training on Immune Cell Function and Bioenergetics

23. Juni 2026 aktualisiert von: Jonathan Little, University of British Columbia

Impact of 6-Weeks of Blood Flow Restriction Training on Immune Cell Function and Bioenergetics in Adults withT2D

To conduct a randomized control trial to determine the impact of 6-weeks of blood flow restriction training on immune cell function and bioenergetics in adults living with type 2 diabetes.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Participants will be randomized to a regular treadmill walking group or treadmill walking with blood flow restriction (BFR) group for 6 weeks. In both groups participants will complete treadmill walking on 3 days per week for 6 weeks. During week 1 participants will walk for 21 minutes during each session which will be increased to 32 minutes for the remaining 5 weeks of the study. In both groups the treadmill speed and grade will be set to 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 progressively increase over the course of the intervention. Weeks 1 and 2 will be completed at 60% LOP, after which pressure will increase by 5% each subsequent week, corresponding to 65%, 70%, 75%, and 80% LOP during weeks 3, 4, 5, and 6, respectively. All outcomes will be assessed at baseline before randomization and at the end of the 6-week intervention.

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

    • 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

  • Erwachsene

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

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

Exclusion Criteria:

A. Chronic musculoskeletal condition or recent (within 2 years) cardiovascular event preventing participation in exercise.

B. Unstable type 2 diabetes medication of the last 3 months C. Absolute contraindications to BFR (i.e., peripheral vascular disease) D. A self-reported diagnosis of low iron concentrations, anemia, or being treated for these conditions E. A diagnosis of any red blood cell-altering condition (i.e., sickle cell anemia, poikilocytosis) F. Currently living with any cardiovascular disease, which would impact the ability to participate in exercise safely G. 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 performed 3 days per week for 6 weeks.
In both groups participants will complete treadmill walking on 3 days per week for 6 weeks. During the first week participants will walk continuously for 21 minutes during each training session which will be increased to 32 minutes per training session for weeks 2-6. In both groups the treadmill speed and grade will be set to 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 min every 10 min based on safety recommendations. The percentage of LOP will progressively increase over the course of the intervention. Weeks 1 and 2 will be completed at 60% LOP, after which pressure will increase by 5% each subsequent week, corresponding to 65%, 70%, 75%, and 80% LOP during weeks 3, 4, 5, and 6, respectively.
Aktiver Komparator: Treadmill Walking
Treadmill walking performed 3 days per week for 6 weeks.
In both groups participants will complete treadmill walking on 3 days per week for 6 weeks. During the first week participants will walk continuously for 21 minutes during each training session which will be increased to 32 minutes per training session for weeks 2-6. In both groups the treadmill speed and grade will be set to 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 min every 10 min based on safety recommendations. The percentage of LOP will progressively increase over the course of the intervention. Weeks 1 and 2 will be completed at 60% LOP, after which pressure will increase by 5% each subsequent week, corresponding to 65%, 70%, 75%, and 80% LOP during weeks 3, 4, 5, and 6, respectively.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in T-cell oxygen consumption rate (OCR) measured before and after the 6-week intervention
Zeitfenster: 0-6 weeks
T-cell OCR will be measured using a Seahorse Analyzer at baseline and after the 6-week intervention.
0-6 weeks

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in CD4 expression before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The CD4 expression will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in CD8 expression before and after the 6-week intervention
Zeitfenster: The CD8 expression will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
The CD8 expression will be measured using flow cytometry at baseline and after the 6-week intervention.
Change in % of T regulatory cells before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % T regulatory cells will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in % of Th1 cells before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % Th1 cells will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in % of Th2 cells before and after the 6-week intervention
Zeitfenster: The % Th2 cells will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
The % Th2 cells will be measured using flow cytometry at baseline and after the 6-week intervention.
Change in % of Th17 cells before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % Th17 cells will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in CD66b+ expression before and after the 6-week intervention
Zeitfenster: The CD66b+ expression will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
The CD66b+ expression will be measured using flow cytometry at baseline and after the 6-week intervention.
Change in CD11b+ expression before and after the 6-week intervention
Zeitfenster: The CD11b+ expression will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
The CD11b+ expression will be measured using flow cytometry at baseline and after the 6-week intervention.
Change in CD63+ expression before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The CD63+ expression will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in % of classical monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % of classical monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in % of intermediate monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % of intermediate monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in % of non-classical monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The % of non-classical monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in TLR-4 expression on classical monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The TLR-4 expression on classical monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in TLR-4 expression on intermediate monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The TLR-4 expression on intermediate monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in TLR-4 expression on non-classical monocytes before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The TLR-4 expression on non-classical monocytes will be measured using flow cytometry at baseline and after the 6-week intervention.
0-6 weeks
Change in white blood cell count before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The white blood cell count will be measured using a hematology analyzer at baseline and after the 6-week intervention.
0-6 weeks
Change in monocyte count before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The monocyte count will be measured using a hematology analyzer at baseline and after the 6-week intervention.
0-6 weeks
Change in neutrophil count before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The neutrophil count will be measured using a hematology analyzer at baseline and after the 6-week intervention.
0-6 weeks
Change in eosinophil count before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The eosinophil count will be measured using a hematology analyzer at baseline and after the 6-week intervention.
0-6 weeks
Change in plasma IL-6 before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The plasma IL-6 concentration will be measured using a multiplex assay at baseline and after the 6-week intervention.
0-6 weeks
Change in plasma IL-10 before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The plasma IL-10 concentration will be measured using a multiplex assay at baseline and after the 6-week intervention.
0-6 weeks
Change in plasma TNF-α before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The plasma TNF-α concentration will be measured using a multiplex assay at baseline and after the 6-week intervention.
0-6 weeks
Change in 4-h LPS-induced TNF-α before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The LPS-induced TNF-α concentration will be measured from whole-blood culture supernatant using an ELISA at baseline and after the 6-week intervention.
0-6 weeks
Change in 4-h LPS+IL-10-induced TNF-α before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The LPS+IL10-induced TNF-α concentration will be measured from whole-blood culture supernatant using an ELISA at baseline and after the 6-week intervention.
0-6 weeks
Change in 24-h CD3/CD28 stimulated INF-γ before and after the 6-week intervention
Zeitfenster: 0-6 weeks
The CD3/CD28 stimulated INF-γ concentration will be measured from T-cell culture supernatant using an ELISA at baseline and after the 6-week intervention.
0-6 weeks
Change in PMA/Ionomysin induced INF-γ before and after the 6-week
Zeitfenster: 0-6 weeks
The PMA/Ionomysin induced INF-γ concentration will be measured from whole-blood culture supernatant using an ELISA at baseline and after the 6-week intervention.
0-6 weeks

Mitarbeiter und Ermittler

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

Sponsor

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

23. Juni 2026

Zuerst gepostet (Tatsächlich)

30. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

30. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

23. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • H25-02870-chronic

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Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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