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Kidney Transplant RecipientsVBRTKIDNEYNCT07370727

Velocity-Based Resistance Training in Kidney Transplant Recipients

A study testing Velocity-Based Resistance Training - Submaximal Velocity Protocol and Velocity-Based Resistance Training - Maximal Velocity Protocol in people with Kidney Transplant Recipients and Metabolic Syndrome, run by Fundación Universitaria del Area Andina at 1 site in Colombia.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This randomized controlled trial aims to evaluate the effects of velocity-based resistance training on renal function and metabolic health in kidney transplant recipients. Participants will be randomized into two groups performing resistance training at different execution velocities (maximal intended vs. Read more about this study

Who is it for?
Ages 18 to 50 years
What is being tested?
Velocity-Based Resistance Training - Submaximal Velocity Protocol and Velocity-Based Resistance Training - Maximal Velocity Protocol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteColombia
Study dates
29 Oct 2025to 31 Dec 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

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 18 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Men and women aged 18 to 50 years.
  • Kidney transplant performed ≥12 months before enrollment.
  • Stable graft function in the previous 6 months (serum creatinine < 1.5 mg/dL, no rejection episodes).
  • Written medical clearance from a nephrologist to perform moderate-to-vigorous physical activity.
  • Signed informed consent.

Who cannot join

  • Active autoimmune disorders.
  • Recent coronary disease (≤6 months).
  • Severe musculoskeletal limitations incompatible with resistance training.
  • Diagnosis of diabetes mellitus (pre- or post-transplant).
  • Current active infection.
  • Use of immunosuppressive drugs with contraindications for exercise (e.g., mTOR inhibitors at baseline).

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Colombia1 site, 1 recruiting
  • Colombia

    Bogotá, Bogota D.C., 0000

    Jhonatan C peña, Master in Physical Activity, 3125924821 ext. 57, jpena69@areandina.edu.co

    Recruiting

Other trials in Colombia

About this study

Official title: Effects of Velocity-Based Resistance Training on Renal Function and Metabolic Health in Kidney Transplant Recipients: Protocol for a Randomized Controlled Trial

This randomized controlled trial aims to evaluate the effects of velocity-based resistance training on renal function and metabolic health in kidney transplant recipients. Participants will be randomized into two groups performing resistance training at different execution velocities (maximal intended vs. submaximal controlled). The intervention will last 12 weeks and include multi-joint exercises (squat, bench press, military press). Primary outcomes include renal function (serum creatinine, eGFR, blood urea nitrogen, uric acid) and metabolic markers (HDL, triglycerides, glucose, waist circumference, blood pressure). Secondary outcomes include muscle strength, force-velocity profile, anthropometry, physical activity, fitness perception, and adherence to immunosuppressive medication.

Read the detailed description

This randomized controlled trial will examine the physiological and metabolic responses to different resistance training velocities in kidney transplant recipients. Participants will be randomized to perform either maximal-velocity or submaximal-velocity resistance exercises for 12 weeks. Each session will include multi-joint movements (bench press, squat, overhead press) using a Smith machine. Training loads will be individualized (20-60% 1RM) and monitored using a linear encoder to control velocity loss. Primary endpoints are renal function and metabolic health markers, while secondary outcomes include neuromuscular performance and adherence to immunosuppressive therapy. The study has received ethics approval from Fundación Universitaria del Área Andina (Acta 15, April 22, 2025).

Being tested
Velocity-Based Resistance Training - Submaximal Velocity Protocol, Velocity-Based Resistance Training - Maximal Velocity Protocol
Keywords
Kidney Transplant, Renal Transplant, Velocity based resistance training, Metabolic Health, Exercise Intervention, Glomerular Filtration Rate (eGFR)
Medical subject headings
Metabolic Syndrome

What participants receive

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

  • Velocity-Based Resistance Training - Submaximal Velocity ProtocolOther

    A 12-week supervised resistance training program performed 3 sessions per week. Exercises will include bench press, squat, and shoulder press in Smith machine. Participants will execute each repetition at ~50% of maximal concentric velocity, with sets completed according to predetermined repetitions (20-30 depending on load, 20-60% 1RM).

  • Velocity-Based Resistance Training - Maximal Velocity ProtocolOther

    A 12-week supervised resistance training program performed 3 sessions per week. Exercises will include bench press, squat, and shoulder press in Smith machine. Participants will execute each repetition at maximal concentric velocity, with sets terminated at 20% velocity loss. Training loads will increase progressively (20-60% 1RM).

Study groups in NCT07370727
Study groupRoleWhat they receive
Experimental - Maximal Velocity GroupExperimentalParticipants will perform velocity-based resistance training at maximal intended concentric velocity. Training load will progress from 20% to 60% of 1RM. Each set will be terminated once a 20% loss of movement velocity is reached.
Receives: Other: Velocity-Based Resistance Training - Maximal Velocity Protocol
Submaximal Velocity GroupActive comparatorParticipants will perform supervised velocity-based resistance training for 12 weeks, 3 sessions per week. Each repetition will be executed at approximately 50% of maximal concentric velocity. Training load will progress from 20% to 60% of 1RM, with sets completed according to a predetermined number of repetitions (20-30 depending on load).
Receives: Other: Velocity-Based Resistance Training - Submaximal Velocity Protocol

What is being measured

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

  1. Serum creatinine (mg/dL) - change from baseline

    Serum creatinine will be measured from venous blood samples processed in an external certified laboratory (IDIME, Bogotá). This parameter will serve as a biomarker of renal graft function.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  2. Estimated glomerular filtration rate (eGFR, mL/min/1.73 m²) - change from baseline

    The estimated glomerular filtration rate (eGFR) will be calculated from serum creatinine using validated equations (CKD-EPI or MDRD). This measure will serve as the most sensitive indicator of renal graft function.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  3. Blood urea nitrogen (BUN, mg/dL) - change from baseline

    Blood urea nitrogen will be measured to monitor renal clearance capacity and metabolic status.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  4. Serum Uric Acid (mg/dL)

    Serum uric acid will be measured as a biomarker of renal excretory capacity and cardiovascular risk.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  5. HDL cholesterol (mg/dL) - change from baseline

    HDL cholesterol will be measured as a protective lipid biomarker inversely associated with metabolic and cardiovascular risk.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  6. Triglycerides (mg/dL) - change from baseline

    Serum triglycerides will be measured to evaluate metabolic health and risk of cardiovascular disease.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  7. Fasting glucose (mg/dL) - change from baseline

    Fasting blood glucose will be measured through enzymatic methods to evaluate glycemic control.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  8. Waist circumference (cm) - change from baseline

    Waist circumference will be measured at the narrowest point of the torso, midway between the lower margin of the ribs and the iliac crest, following ISAK recommendations. This anthropometric variable will serve as a key component of metabolic syndrome diagnosis.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  9. Metabolic Risk Index (z-score composite)

    A composite metabolic risk index will be calculated from triglycerides, LDL, HDL, glucose, and systolic/diastolic blood pressure values. Each variable will be standardized as z-scores; HDL will be multiplied by -1 due to its inverse relationship with cardiovascular risk. The final score will be the sum of standardized values.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

Secondary outcomes (6)
  1. Handgrip strength

    Handgrip strength will be assessed using a digital dynamometer (Takei Scientific Instruments, Tokyo). Two trials per hand, best value recorded. This test reflects overall muscle strength.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  2. Body Composition (fat percent, muscle percent, visceral fat)

    Body composition will be assessed using segmental bioelectrical impedance analysis (Tanita IRONMAN BC-1500). Measurements will include fat percentage, muscle percentage, and visceral fat.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  3. Force-Velocity Profile

    :The force-velocity profile will be assessed using a linear encoder (T-Force) during three multi-joint exercises (bench press, squat, overhead press). The relationship between force and velocity will be calculated to estimate neuromuscular performance.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  4. Body Height (cm)

    Body height will be measured with a digital stadiometer following the Frankfurt plane reference to ensure standardized posture.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  5. Relative Handgrip Strength (kg/kg body weight)

    Relative handgrip strength will be calculated by dividing the maximum handgrip force by body weight to account for body size.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

  6. Comorbidity and Immunosuppressive Therapy Questionnaire

    A structured questionnaire will be used to record comorbidities and medication adherence. Adherence will be rated on a 5-point Likert scale (1 = never adherent, 5 = always adherent), where higher scores indicate better adherence.

    Measured: Baseline and week 13 (after completion of 12-week intervention)

Timeline

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

  1. First posted27 Jan 2026
  2. Study start29 Oct 2025
  3. Primary completion1 Jun 2026 (estimated)
  4. Study completion31 Dec 2027 (estimated)

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Investigator
Enrolment
12 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07370727
Sponsor's protocol ID
CV2025-IMED-B-13434
Acronym
VBRTKIDNEY
Status last verified
Jan 2026
First submitted
30 Sep 2025
Last updated
27 Jan 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Michou V, Nikodimopoulou M, Liakopoulos V, Anifanti M, Papagianni A, Zembekakis P, Deligiannis A, Kouidi E. Home-Based Exercise Training and Cardiac Autonomic Neuropathy in Kidney Transplant Recipients with Type-II Diabetes Mellitus. Life (Basel). 2023 Jun 14;13(6):1394. doi: 10.3390/life13061394.

    PubMed 37374177
  • Pena JC, Sanchez-Guette L, Lombo C, Pinto E, Collazos C, Tovar B, Bonilla DA, Cardozo LA, Tellez LA. Characterization of Load Components in Resistance Training Programs for Kidney Transplant Recipients: A Scoping Review. Sports (Basel). 2025 May 19;13(5):153. doi: 10.3390/sports13050153.

    PubMed 40423289
  • Lima PS, de Campos AS, de Faria Neto O, Ferreira TCA, Amorim CEN, Stone WJ, Prestes J, Garcia AMC, Urtado CB. Effects of Combined Resistance Plus Aerobic Training on Body Composition, Muscle Strength, Aerobic Capacity, and Renal Function in Kidney Transplantation Subjects. J Strength Cond Res. 2021 Nov 1;35(11):3243-3250. doi: 10.1519/JSC.0000000000003274.

    PubMed 31714457
  • Hernandez Sanchez S, Carrero JJ, Morales JS, Ruiz JR. Effects of a resistance training program in kidney transplant recipients: A randomized controlled trial. Scand J Med Sci Sports. 2021 Feb;31(2):473-479. doi: 10.1111/sms.13853. Epub 2020 Oct 23.

    PubMed 33038051
  • Pena Ibagon JC, Vasquez Osorio F, Collazos Morales CA, Tovar BE, Martin WF, Pardo YR, Tellez LA. Effects of Velocity-Based Resistance Training on Renal Function and Metabolic Health in Kidney Transplant Recipients: Protocol for a Pilot Randomized Controlled Trial. JMIR Res Protoc. 2026 Jul 10;15:e94010. doi: 10.2196/94010.

    PubMed 42430723

Questions about this trial

What is this clinical trial studying?

A study testing Velocity-Based Resistance Training - Submaximal Velocity Protocol and Velocity-Based Resistance Training - Maximal Velocity Protocol in people with Kidney Transplant Recipients and Metabolic Syndrome, run by Fundación Universitaria del Area Andina at 1 site in Colombia.

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 5 inclusion and 6 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: looking for participants now, as of the sponsor's last update on 27 Jan 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 Colombia. 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?

This study is still under way. Results are not available in the source record yet.

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

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Serum creatinine (mg/dL) - change from baseline (time frame: Baseline and week 13 (after completion of 12-week intervention)). The study lists 9 primary outcomes in all. 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 NCT07370727, which also lists 5 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 27 Jan 2026.

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