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Acute Blood Flow Restriction Walking on Immune Cell Phenotype and Function

2026年11月3日 更新者: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.

調査の概要

状態

募集

条件

介入・治療

詳細な説明

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.

研究の種類

介入

入学 (推定)

20

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • British Columbia
      • Kelowna、British Columbia、カナダ、V1V 1V7
        • 募集
        • University of British Columbia Okanagan
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

19年~64年 (大人)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

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

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:基礎科学
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的: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%.

アクティブコンパレータ:Treadmill Walking

Treadmill walking.

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

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in white blood cell count before, during, and after exercise.
時間枠: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

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in monocyte count before, during, and after exercise
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年2月11日

一次修了 (推定)

2027年12月31日

研究の完了 (推定)

2027年12月31日

試験登録日

最初に提出

2026年6月23日

QC基準を満たした最初の提出物

2026年11月3日

最初の投稿 (実際)

2026年11月10日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月10日

QC基準を満たした最後の更新が送信されました

2026年11月3日

最終確認日

2026年11月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • H25-02870 acute

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いいえ

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