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Rowing and Cycling Reduce Inflammation in Early-Stage Type 2 Diabetes

Effects of Different Modes of Rowing Combined With Cycling Exercise on Inflammatory Markers in Newly Diagnosed Type 2 Diabetes Patients

This multicenter randomized controlled trial evaluates the short-term (7-day) effects of different rowing-cycling exercise regimens on postprandial glycemic excursions in newly diagnosed type 2 diabetes patients (aged 18-60 years, diagnosis ≤12 months, drug-naïve). A total of 120 participants will be randomized into five groups: control, moderate-intensity continuous cycling, high-intensity interval rowing, and standard combined exercise (rowing + cycling, 50 min). The primary outcome is inflammatory cytokines (IL-6, TNF-α, IL-1β, IL-1ra, IL-10, hs-CRP), body Composition and functional Indicators. Secondary outcomes include change in continuous glucose monitoring-derived glycemic variability (CONGA), and time-in-range. Mixed-effects models will quantify dose-response relationships and identify key effect modifiers (e.g., age). This study aims to establish an evidence-based precision exercise prescription for early-stage type 2 diabetes management.

調査の概要

状態

まだ募集していません

条件

介入・治療

詳細な説明

Study Process

  1. Screening & enrolment - We recruit 128 adults (18-60 years) who have been diagnosed with type 2 diabetes within the last 12 months and have never taken diabetes medication.
  2. Baseline assessments - Before starting, all participants undergo blood tests (glucose, insulin, inflammatory markers), a continuous glucose monitor (CGM) is placed on their arm, and they wear an activity tracker for 7 days.
  3. Randomization - Participants are randomly assigned to one of four groups (32 people each):

    Control - usual care, no exercise

    Cycling - 40 min of moderate-intensity cycling per day

    Rowing (HIIT) - 24 min of high-intensity interval rowing per day

    Combined - 20 min rowing + 20 min cycling (50 min total)

  4. Intervention - All exercise groups train once a day for 7 consecutive days at the research centre under supervision. Heart rate is monitored throughout.
  5. Continuous monitoring - The CGM records glucose levels every 15 minutes during the whole 7-day period. Activity trackers record physical activity outside the exercise sessions.
  6. Post-intervention assessments - On day 8, we repeat all blood tests, measure inflammatory markers again, and collect the CGM data.

9. Data analysis - We compare changes in blood sugar fluctuations and inflammation between the groups, and use statistical models to find which exercise regimen works best and for whom (e.g., younger vs. older patients).

The entire study takes about 9 days per participant (1 week of exercise + 2 days of testing).

研究の種類

介入

入学 (推定)

120

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

研究連絡先のバックアップ

  • 名前:Yanxin Huang, Dr
  • 電話番号:+8615960503382
  • メール:727937141@qq.com

研究場所

    • Fujian
      • Putian、Fujian、中国、351100
        • The Ethics Committee of Putian 95 Hospital
        • 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

  • 大人

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  1. Age between 18-60 years, no gender limited;
  2. Meeting the WHO 1999 diagnostic criteria for T2DM, with a diagnosis time ≤12 months;
  3. Not having received hypoglycemic drug treatment (or only lifestyle intervention, and stopped medication ≥4 weeks before enrollment);
  4. Fasting blood glucose 7.0-13.9 mmol/L, glycated hemoglobin (HbA1c) 6.5%-10.0%;
  5. No regular exercise in the past 3 months (less than 2 times per week of moderate or higher intensity exercise, each <30 minutes);
  6. Voluntarily signing the informed consent form.

Exclusion Criteria:

  1. Type 1 diabetes, gestational diabetes, or other special types of diabetes;
  2. Severe cardiovascular or cerebrovascular diseases (NYHA heart function ≥III, recent myocardial infarction or unstable angina);
  3. Uncontrolled hypertension (resting systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg);
  4. Severe liver or kidney dysfunction (ALT/AST ≥3 times the upper limit of normal, or eGFR<60 mL/min/1.73m²);
  5. Severe diabetic complications (such as proliferative retinopathy, severe neuropathy, diabetic foot);
  6. Pregnant or breastfeeding women;
  7. Mental illness or cognitive impairment that prevents compliance with the study;
  8. Stress events such as infection, trauma, or surgery in the past month;
  9. Participation in other interventional clinical studies;
  10. Musculoskeletal diseases of the upper or lower limbs that affect rowing machine or bicycle exercise.

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:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:独身

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ:Continuous Exercise - Cycling Group
Warm-up: 5 minutes of low-intensity cycling (50-60 W, approximately 40%-50% HRmax of continuous power cycling at) Main Training: 40 minutes 65%-75% HRmax (approximately 60%-70% VO₂peak), maintaining a cadence of 60-80 rpm Cool-down: 5 minutes of low-intensity cycling followed by stretching Total Duration: 50 minutes
Warm-up: 5 minutes of low-intensity cycling (50-60 W, approximately 40%-50% HRmax of continuous power cycling at) Main Training: 40 minutes 65%-75% HRmax (approximately 60%-70% VO₂peak), maintaining a cadence of 60-80 rpm Cool-down: 5 minutes of low-intensity cycling followed by stretching Total Duration: 50 minutes
アクティブコンパレータ:Rowing Ergometer High-Intensity Interval Training (RE-HIIT)

Warm-up:

5 minutes of low-intensity rowing at approximately 50% of maximum heart rate (HRmax).

Main Training:

24 minutes of interval training consisting of 4 sets of high-intensity rowing for 4 minutes each (85%-90% HRmax), with 2 minutes of low-intensity active recovery (50%-60% HRmax) between each set. Maintain a stroke rate of 24-30 strokes per minute (SPM) for high-intensity intervals and 18-22 SPM for recovery intervals.

Cool-down:

5 minutes of low-intensity rowing combined with stretching.

Total Duration:

34 minutes

Warm-up:

5 minutes of low-intensity rowing at approximately 50% of maximum heart rate (HRmax).

Main Training:

24 minutes of interval training consisting of 4 sets of high-intensity rowing for 4 minutes each (85%-90% HRmax), with 2 minutes of low-intensity active recovery (50%-60% HRmax) between each set. Maintain a stroke rate of 24-30 strokes per minute (SPM) for high-intensity intervals and 18-22 SPM for recovery intervals.

Cool-down:

5 minutes of low-intensity rowing combined with stretching.

Total Duration:

34 minutes

実験的:Combined Training Standard (CT-S)

Warm-up:

5 minutes of low-intensity activity (choose either cycling or rowing).

Rowing Machine Segment:

20 minutes at an intensity of 65%-75% of maximum heart rate (HRmax) (approximately 60%-70% of VO₂peak), with a stroke rate of 22-26 strokes per minute (SPM).

Bicycle Segment:

20 minutes at an intensity of 65%-75% of HRmax (approximately 60%-70% of VO₂peak), with a cadence of 60-80 revolutions per minute (rpm).

Cool-down:

5 minutes of stretching.

Total Duration:

50 minutes

Warm-up:

5 minutes of low-intensity activity (choose either cycling or rowing).

Rowing Machine Segment:

20 minutes at an intensity of 65%-75% of maximum heart rate (HRmax) (approximately 60%-70% of VO₂peak), with a stroke rate of 22-26 strokes per minute (SPM).

Bicycle Segment:

20 minutes at an intensity of 65%-75% of HRmax (approximately 60%-70% of VO₂peak), with a cadence of 60-80 revolutions per minute (rpm).

Cool-down:

5 minutes of stretching.

Total Duration:

50 minutes

介入なし:Control Group (CG)
Maintain usual activity levels without engaging in any structured exercise training. Daily activity levels are recorded using an accelerometer.

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
inflammatory cytokines
時間枠:1.4 weeks

IL-6 (Interleukin-6) - The first muscle factor induced by exercise, is the core molecule connecting exercise to systemic anti-inflammatory effects. IL-6 produced by skeletal muscles during exercise inhibits TNF-α and stimulates IL-1ra to exert anti-inflammatory effects. Different exercise patterns have varying regulations on IL-6, with both aerobic training and combined training significantly reducing IL-6 levels in T2DM patients.

TNF-α (Tumor Necrosis Factor Alpha) - A key pro-inflammatory factor in insulin resistance in T2DM. Exercise improves insulin sensitivity by inhibiting the production of TNF-α. Meta-analyses confirm that exercise significantly reduces TNF-α levels in T2DM patients.

hs-CRP (High-sensitivity C-reactive protein) - A classic marker of systemic low-grade inflammation, identified as a key baseline biomarker to distinguish well-controlled T2DM patients from healthy adults.

1.4 weeks
Body Composition
時間枠:1.4 weeks
DEXA to detect body fat percentage (BF%) and skeletal muscle index (SMI)
1.4 weeks
maximal oxygen uptake (VO₂max)
時間枠:1.4 weeks
Cardiopulmonary exercise testing to determine maximal oxygen uptake (VO₂max)
1.4 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
Postprandial Blood Glucose Fluctuations
時間枠:1.4 weeks
Calculate the average blood glucose values and blood glucose fluctuation coefficients (CONGA) for 2-4 hours after breakfast, lunch, and dinner by using CGM, comparing the differences before and after intervention and between groups. CONGA is defined as the standard deviation of the differences between consecutive blood glucose measurements, reflecting the amplitude of blood glucose fluctuations.
1.4 weeks
Dynamic Blood Glucose Parameters
時間枠:1.4 weeks
Time in Range (TIR): The percentage of time blood glucose is within the range of 3.9-10.0 mmol/L Time Above Range (TAR): The percentage of time blood glucose is >10.0 mmol/L Time Below Range (TBR): The percentage of time blood glucose is <3.9 mmol/L Mean Amplitude of Glycemic Excursions (MAGE) 24-hour average blood glucose Immediate post-exercise blood glucose decline and duration
1.4 weeks
Basal Metabolic Indicators
時間枠:1.4 weeks
Fasting Plasma Glucose (FPG) 2-hour Postprandial Glucose (2hPG) Glycated Hemoglobin (HbA1c) Fasting Insulin (FINS) HOMA-IR Index Matsuda Insulin Sensitivity Index (ISI)
1.4 weeks
Anthropometric indicator
時間枠:1.4 weeks
Body Mass Index (BMI) = Weight (kg) / Height (m)²
1.4 weeks

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

捜査官

  • スタディチェア:Rongfeng Zhu、The 95th Hospital of Putian

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

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 (推定)

2026年10月1日

一次修了 (推定)

2028年10月10日

研究の完了 (推定)

2028年12月11日

試験登録日

最初に提出

2026年8月1日

QC基準を満たした最初の提出物

2026年8月12日

最初の投稿 (実際)

2026年8月18日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月18日

QC基準を満たした最後の更新が送信されました

2026年8月12日

最終確認日

2026年8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

  • 2025-js025

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

IPD プランの説明

Some recruiters may object to public disclosure.

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米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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