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Type 2 DiabetesRESISTNCT04222231

RESIST! Blood-flow Restriction Resistance Training for Improving Insulin Sensitivity in Type 2 Diabetes

A study testing Blood-flow restriction resistance training and Classical resistance training in people with Type 2 Diabetes, run by German Diabetes Center at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study aims to investigate the metabolic and cardiovascular effects of classical resistance training with high loads and blood-flow restricted training (BFRT) with low loads in individuals with type 2 diabetes over 12 weeks. Read more about this study

Who is it for?
Ages 30 to 69 yearsHealthy volunteers can take part
Conditions the study is for
Type 2 Diabetes
What is being tested?
Blood-flow restriction resistance training and Classical resistance training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteGermany
Study dates
28 Oct 2019to 17 May 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 to 69 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male and female, age between ≥ 30 and ≤ 69 years
  • Individuals with type 2 diabetes
  • BMI: 19-40 kg/m²

Who cannot join

  • Acute infections in the last 2 weeks
  • Weight fluctuations (> 10% in the last 6 month)
  • Therapy with Glitazone, Beta blocker, Insulin
  • Malignant cancer
  • Heart diseases (angina pectoris, myocardial infarction, acute myocarditis or pericarditis, cardiac wall aneurysms/ stenose, untreated hypotension or hypertension, aortic stenosis, stroke, cardiac insufficiency, NYHA-class ≥II, heart arrhythmia, disturbances of blood circulation in extremities, venous insufficiency, varicose veins)
  • Diabetic neuropathy
Show all 29Show fewer
  • Respiratory disease (COPD, Gold grade ≥II)
  • Serious heart, kidney or liver disease: - New York Heart Association-Classification (NYHA) stage ≥ II - creatinine ≥ 1.6 mg / dl - Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) ≥ two-fold upper reference value
  • Anemia (Hb <12g / l), blood donation in the last 3 month
  • Disease of the immune system (leucocytes <5000/μl)
  • Application of immunomodulatory agents (Glucocorticoids, Antihistamine, Acetylsalicylic acid)
  • Application of antithrombotic agents (Anticoagulant)
  • Blood clotting disorders (abnormally levels of thrombocytes [<150.000, >450.000 ± 50 ], Partial thromboplastin time (PTT) [26-36 s ± 5 s], Quick [70-120% ± 10%]) or wound healing
  • Thyroid disease (untreated hypothyroidism or hyperthyroidism, treatment with thiamazol)
  • Epilepsy
  • Application of drugs which can manipulate the thermoregulation (Antipsychotic)
  • Rosacea
  • Vitamine supplement (with the las 4 weeks)
  • Cigarettes (or non-smokers <1 year) alcohol consumption (men> 30 g / d, women> 20 g / d), drug abuse
  • Severe psychiatric illness or addiction
  • Risk for/ or HIV or Hepatitis B or C
  • Shift work or anormal circadian rhythm
  • Muscle diseases, orthopedic restrictions
  • Hypersensitivity to local anaesthetic
  • Pregnancy, lactation
  • Metallic and magnetic implants (for example, mechanical heart valves, joint prostheses, clip after vascular surgery, middle and inner ear implants or fresh dental implants)
  • Claustrophobia
  • Hypohidrosis
  • Participation in another intervention study within the last 3 month

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • German Diabetes Center

    Düsseldorf, North Rhine-Westphalia, 40225

Other trials in Germany

About this study

Official title: Metabolic Effects of a New Resistance Training in Individuals With Type 2 Diabetes

The study aims to investigate the metabolic and cardiovascular effects of classical resistance training with high loads and blood-flow restricted training (BFRT) with low loads in individuals with type 2 diabetes over 12 weeks.

Read the detailed description

Type 2 diabetes (T2D) is characterized by an increasing insensitivity of muscle, fat and liver cells to the hormone insulin. About 9% of the global population is affected by this condition and mortality risk is twice as high in individuals with diabetes compared to similar-aged people without diabetes.

Muscle is of particular importance for glucose homeostasis, since in healthy people it accounts for 80-90% of postprandial insulin-stimulated glucose disposal. After cellular uptake of glucose by the specialized glucose transporter 4 (GLUT4), glucose is phosphorylated and stored as glycogen. In individuals with obesity or T2D, the capacity for insulin to facilitate glucose uptake and glycogen synthesis is impaired. This reduced response of a given insulin concentration to exert its biological effect is termed insulin resistance. Subsequent diminished insulin secretion due to β-cell failure results in fasting hyperglycemia and overt diabetes. Importantly, muscle insulin resistance is the initial defect occurring in the development of T2D and precedes the clinical development of the disease by up to 20 years.

Thus, the preservation of skeletal muscle function is essential for people with T2D who have an increased risk of sarcopenia. On the one hand high intensity resistance training (HIT) with 80 % one-repetition maximum (%1-RM) is a well-recognized strategy to improve muscle strength and glycemic control for individuals with T2D, on the other hand elderly or obese people may not be able to tolerate these high loads. Blood flow restriction training (BFRT) with low loads (20-30% 1-RM) has consistently demonstrated comparable effects to HIT and seems to be a promising alternative to increase muscle function.

During the BFRT the muscle becomes hypoxic due to a brief occlusion of venous blood flow using a tourniquet while exercising. Consequently metabolites like lactate, growth hormone (GH) and insulin like growth factor (IGF-1) are released and result in muscle hypertrophy through activating the collagen synthesis and the recruitment of satellite cells. Furthermore cell swelling based on venous blood pooling, reactive hyperemia and metabolite accumulation has been shown to increase protein synthesis by activating the mammalian Target of Rapamycin Complex 1 (mTORC1) pathway. Also, BFRT increases the level of reactive oxygen species (ROS) which may lead to higher glucose uptake during exercise. Last but not least higher threshold motor units (fast twitch fibers) are recruited due to hypoxia and metabolite accumulation.

Although there is a significant inverse relationship between muscle strength and the risk of cardiovascular mortality, cardiovascular adaptations to resistance training are under-explored and poorly understood.

The study therefore aims to investigate the metabolic and cardiovascular effects of BFRT with low loads in individuals with T2D.

Conditions
Type 2 Diabetes
Being tested
Blood-flow restriction resistance training, Classical resistance training
Keywords
Insulin sensitivity, Blood flow restriction training, Muscle hypertrophy, Muscle Strength, Hypoxia
Medical subject headings
Diabetes Mellitus, Type 2, Insulin Resistance, Hypoxia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood-flow restriction resistance trainingOther

    Training program: After 10 minutes of warm-up the participant performs three exercises with BFRT for the lower extremities. The intensity is about 15-30% of 1-RM.

  • Classical resistance trainingOther

    Training program: After warm-up the participant performs three exercises for lower body. The intensity is about 60-80% of 1-RM.

Study groups in NCT04222231
Study groupRoleWhat they receive
Blood-flow restriction resistance trainingExperimentalResistance training with low loads (15-30% RM) in combination with a brief occlusion of venous blood flow using a tourniquet while exercising.
Receives: Other: Blood-flow restriction resistance training
Classical resistance trainingExperimentalResistance training with high loads (60-80% RM).
Receives: Other: Classical resistance training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in insulin sensitivity by blood-flow restriction or classical resistance training

    By using hyperinsulinemic-euglycemic clamp technique, changes in the M-value (mg x kg-1 x min-1) will be measured. The m-value represent the glucose infusion rate at a defined level of hyperinsulinemia during a glucose clamp test. The hyperinsulinemic-euglycemic clamp technique will thus be implicated to assess changes in insulin sensitivity before and after 12 weeks of resistance training.

    Measured: Before and after 12 weeks of training (intervention)

Secondary outcomes (1)
  1. Changes in skeletal muscle mass by blood-flow restriction or classical resistance training

    Cross-sectional area (cm2) from quadriceps will be measured by MRI imaging technique to evaluate changes in muscle diameter ("hypertrophy") before and after 12 weeks of resistance training.

    Measured: Before and after 12 weeks of training (intervention)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jan 2020
  2. Study start28 Oct 2019
  3. Primary completion1 May 2024
  4. Study completion17 May 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04222231
Sponsor's protocol ID
DDZ_Resist
Acronym
RESIST
Status last verified
Dec 2024
First submitted
10 Dec 2019
Last updated
5 Nov 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Christiansen D, Eibye KH, Hostrup M, Bangsbo J. Blood flow-restricted training enhances thigh glucose uptake during exercise and muscle antioxidant function in humans. Metabolism. 2019 Sep;98:1-15. doi: 10.1016/j.metabol.2019.06.003. Epub 2019 Jun 12.

    PubMed 31199953
  • Loenneke JP, Fahs CA, Rossow LM, Abe T, Bemben MG. The anabolic benefits of venous blood flow restriction training may be induced by muscle cell swelling. Med Hypotheses. 2012 Jan;78(1):151-4. doi: 10.1016/j.mehy.2011.10.014. Epub 2011 Nov 1.

    PubMed 22051111
  • Abe T, Fujita S, Nakajima T, Sakamaki M, Ozaki H, Ogasawara R, Sugaya M, Kudo M, Kurano M, Yasuda T, Sato Y, Ohshima H, Mukai C, Ishii N. Effects of Low-Intensity Cycle Training with Restricted Leg Blood Flow on Thigh Muscle Volume and VO2MAX in Young Men. J Sports Sci Med. 2010 Sep 1;9(3):452-8. eCollection 2010.

    PubMed 24149640
  • Takarada Y, Takazawa H, Sato Y, Takebayashi S, Tanaka Y, Ishii N. Effects of resistance exercise combined with moderate vascular occlusion on muscular function in humans. J Appl Physiol (1985). 2000 Jun;88(6):2097-106. doi: 10.1152/jappl.2000.88.6.2097.

    PubMed 10846023
  • Takarada Y, Nakamura Y, Aruga S, Onda T, Miyazaki S, Ishii N. Rapid increase in plasma growth hormone after low-intensity resistance exercise with vascular occlusion. J Appl Physiol (1985). 2000 Jan;88(1):61-5. doi: 10.1152/jappl.2000.88.1.61.

    PubMed 10642363
  • Hughes L, Paton B, Rosenblatt B, Gissane C, Patterson SD. Blood flow restriction training in clinical musculoskeletal rehabilitation: a systematic review and meta-analysis. Br J Sports Med. 2017 Jul;51(13):1003-1011. doi: 10.1136/bjsports-2016-097071. Epub 2017 Mar 4.

    PubMed 28259850
  • Mattocks KT, Jessee MB, Mouser JG, Dankel SJ, Buckner SL, Bell ZW, Owens JG, Abe T, Loenneke JP. The Application of Blood Flow Restriction: Lessons From the Laboratory. Curr Sports Med Rep. 2018 Apr;17(4):129-134. doi: 10.1249/JSR.0000000000000473.

    PubMed 29629973
  • Harreiter J, Roden M. [Diabetes mellitus-Definition, classification, diagnosis, screening and prevention (Update 2019)]. Wien Klin Wochenschr. 2019 May;131(Suppl 1):6-15. doi: 10.1007/s00508-019-1450-4. German.

    PubMed 30980151
  • Pesta DH, Goncalves RLS, Madiraju AK, Strasser B, Sparks LM. Resistance training to improve type 2 diabetes: working toward a prescription for the future. Nutr Metab (Lond). 2017 Mar 2;14:24. doi: 10.1186/s12986-017-0173-7. eCollection 2017.

    PubMed 28270856
  • Centner C, Wiegel P, Gollhofer A, Konig D. Effects of Blood Flow Restriction Training on Muscular Strength and Hypertrophy in Older Individuals: A Systematic Review and Meta-Analysis. Sports Med. 2019 Jan;49(1):95-108. doi: 10.1007/s40279-018-0994-1.

    PubMed 30306467

Questions about this trial

What is this clinical trial studying?

A study testing Blood-flow restriction resistance training and Classical resistance training in people with Type 2 Diabetes, run by German Diabetes Center at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 29 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in insulin sensitivity by blood-flow restriction or classical resistance training (time frame: Before and after 12 weeks of training (intervention)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04222231, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2026.

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