EFFECT OF RESISTANCE TRAINING VOLUME WITH INERTIAL FLYWHEEL ON MUSCLE ADAPTATIONS IN UNTRAINED MEN

Summary

Muscular strength is essential for health and quality of life, impacting body composition, balance, locomotion, functional independence, and mental health. Resistance training (RT) is the primary way to increase strength and muscle hypertrophy. Traditionally, RT programs rely on gravity, which can limit muscle activation, especially during the eccentric phase of movement. To improve outcomes, it is important to include methods that intensify muscle work during this phase.

Flywheel resistance Training (FWRT) was developed to increase overload during the eccentric phase by harnessing the energy generated during the concentric phase and applying it to the eccentric phase. This type of training has shown positive results in several studies, improving strength, hypertrophy, jump performance, aerobic endurance, agility, and running economy.

However, there are still no studies that define how the variables of FWRT should be effectively prescribed. Properly adjusting these variables can optimize muscle adaptations and improve physical fitness and health indices. Therefore, in this study, the number of sets will be evaluated to investigate whether a higher number of sets can lead to greater muscle adaptations.

Conditions

• Resistance Training
• Eccentric Exercise Training

Interventions

BEHAVIORAL

Flywheel Resistance Training with two sets

For each training session, 4 generic exercises will be performed, involving small and large muscle groups (leg extension, leg flexion, biceps curl, triceps french press). They will perform 2 sets of 8 repetitions, with a 2-minute break between exercises and sets. They will perform these exercises at a high intensity (always 10 on the OMNI-RES Scale).

BEHAVIORAL

Flywheel Resistance Training with four sets

For each training session, 4 generic exercises will be performed, involving small and large muscle groups (leg extension, leg flexion, biceps curl, triceps french press). They will perform 4 sets of 8 repetitions, with a 2-minute break between exercises and sets. They will perform these exercises at a high intensity (always 10 on the OMNI-RES Scale).

BEHAVIORAL

Flywheel Resistance Training with six sets

For each training session, 4 generic exercises will be performed, involving small and large muscle groups (leg extension, leg flexion, biceps curl, triceps french press). They will perform 6 sets of 8 repetitions, with a 2-minute break between exercises and sets. They will perform these exercises at a high intensity (always 10 on the OMNI-RES Scale).

Sponsors & Collaborators

• Federal University of Vicosa

  lead OTHER

Principal Investigators

• Osvaldo C Moreira, PhD supervisor · Federal University of Viçosa

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

35 Years

Sex

MALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-04-28

Primary Completion

2025-07-04

Completion

2025-07-14

Countries

• Brazil

Study Locations