Clinical trial Recruiting at 1 site Interventional Ages 18 to 50

Understanding how resistance training affects muscle growth and fitness

Official title: Towards Personalized Exercise: Identifying the Determinants of Individual Variation in Repeated Resistance Training (TraDeRe) and Examining Transferability of Responsiveness Between Resistance Training and Endurance Training

Run by University of Jyvaskyla · NCT06573086 · Data updated 2026-11-12

This study is testing how resistance training affects muscle growth and fitness in healthy people to see what factors might help them get better results.

Quick facts

Study typeInterventional
Ages18 Years to 50 Years
SexAll
Enrollment90 (estimated)
SponsorUniversity of Jyvaskyla
Academic / other
Locations1 site (Jyväskylä, Central Finland)
StatusRecruiting
StartedAugust 19, 2024
Main results expectedJune 15, 2025
Study endsJune 15, 2025
Registry record updatedApril 6, 2025
Trial IDNCT06573086 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are healthy adults aged 18-50 who have previously participated in a related intervention.

Probably not a fit

Patients with metabolic, musculoskeletal, cardiovascular disorders, or those on medications affecting exercise performance may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This research project aims to explore the reasons behind the varying responses individuals have to resistance training (RT) and how these responses may predict outcomes in endurance training (ET). By examining physiological, cellular, and molecular mechanisms, the study will investigate how different factors influence muscle growth and adaptation to exercise. A total of 362 healthy participants will undergo a 12-week RT program, with their responses monitored to identify predictors of training success and the impact of environmental factors such as nutrition and sleep.

Why it matters

Potential benefit: If successful, this study could lead to personalized exercise programs that optimize training outcomes for individuals based on their unique responses to resistance training.

How similar studies have gone: While there have been studies on resistance training responses, this multi-OMIC approach to understanding variability in responses is relatively novel and underexplored.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age 18-50
* healthy (e.g., no diagnosed type 2 diabetes, cardiovascular disease, musculoskeletal disorders, etc.)
* prior participation in intervention I (NCT05874986)

Exclusion Criteria:

* medication affecting the cardiovascular system or metabolism
* metabolic, musculoskeletal, cardiovascular, or other diseases or disorders which may preclude the ability to perform exercise training and testing

Where it's running

  • University of Jyväskylä
    Jyväskylä, Central Finland, Finland
    Recruiting

Study contacts

  • Principal investigator: Juha P Ahtiainen, Assoc.Prof. — University of Jyväskylä, Faculty of Sport and Health Sciences
  • Study coordinator: Juha P Ahtiainen, Assoc.Prof.
  • Email: juha.ahtiainen@jyu.fi
  • Phone: +358408053740

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.