Effect of different volumes of flywheel resistance training on muscle growth in untrained men

EFFECT OS RESISTANCE TRAINING VOLUME WITH INERTIAL FLYWHEEL ON MUSCLE ADAPTATIONS IN UNTRAINED MEN: A RANDOMIZED CLINICAL TRIAL

Not applicable Interventional Federal University of Vicosa · NCT06924060

This study tests how different amounts of flywheel resistance training can help untrained young men build muscle over eight weeks.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 35 Years
SexMale
SponsorFederal University of Vicosa Academic / other
Locations1 site (Viçosa, Minas Gerais)
Trial IDNCT06924060 on ClinicalTrials.gov

What this trial studies

This study investigates how varying volumes of Flywheel Resistance Training (FWRT) affect muscle adaptations in untrained young men. Participants will be randomly assigned to three groups based on the number of sets performed during training sessions, which will occur twice a week for eight weeks. The training will focus on both upper and lower body muscles, with evaluations conducted before and after the intervention to assess changes in muscle strength and thickness. The study aims to optimize resistance training protocols by examining the impact of training volume on muscle performance.

Who should consider this trial

Good fit: Ideal candidates for this study are young men who have not engaged in traditional resistance training for at least six months and have no prior experience with inertial flywheel devices.

Not a fit: Patients with recent osteomyoarticular injuries or uncontrolled chronic diseases may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance resistance training protocols, leading to improved muscle strength and hypertrophy for untrained individuals.

How similar studies have performed: While flywheel resistance training has shown positive results in previous studies, this specific investigation into training volume is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Self-reported levels of speaking, writing and understanding Portuguese;
2. Availability to participate in the research (initial meeting, initial and final tests, data collection);
3. Have not been performing traditional resistance exercises for at least 6 months (untrained subjects);
4. Have no previous experience with inertial flywheel devices;
5. Answer no to all questions on the Physical Activity Risk Questionnaire - PAR-Q;
6. Have no medical contraindication of any kind.

Exclusion Criteria:

1. Have a history of recent osteomyoarticular injury;
2. Have uncontrolled chronic diseases;
3. Surgical procedures scheduled during interventions;
4. Do not have the flexibility to adapt their diet to the guidelines offered during collection;
5. Use medications or supplements that may interfere with the result, acting as an intervening variable.

Where this trial is running

Viçosa, Minas Gerais

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Resistance TrainingEccentric Exercise Trainingrandomized clinical trialflywheel resistance traininghypertrophymaximum voluntary isometric contraction
Last reviewed 2026-06-13 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.