Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

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

23. juni 2026 opdateret af: 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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

20

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • British Columbia
      • Kelowna, British Columbia, Canada, V1V 1V7
        • Rekruttering
        • University of British Columbia Okanagan
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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.
Aktiv 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.

Hvad måler undersøgelsen?

Primære resultatmål

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

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in CD4 expression before and after the 6-week intervention
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

11. februar 2026

Primær færdiggørelse (Anslået)

31. december 2027

Studieafslutning (Anslået)

31. december 2027

Datoer for studieregistrering

Først indsendt

23. juni 2026

Først indsendt, der opfyldte QC-kriterier

23. juni 2026

Først opslået (Faktiske)

30. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

30. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • H25-02870-chronic

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .