Comparison of the Effects of Free Weight and Machine-Based Exercises on Muscular Parameters

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-30
SponsorBiruni University

About this trial

The aim of our study is to compare and investigate the effects of resistance exercises performed with free weights and those performed using machine systems on muscular parameters and neuromuscular control.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Being an individual between the ages of 18-30 years

Being physically inactive according to the International Physical Activity Questionnaire short form (<600 MET-min/week)

Residing in Istanbul

Voluntary participation in the study.

Disqualifiers

Having a neurological or cardiopulmonary system problem that prevents exercise.

Having mental dysfunction.

Having an acute musculoskeletal injury which limits exercise participant

Being pregnant.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Machine-Based Resistance Exercise Group

    Device

    Participants will perform supervised resistance exercises using weight machines (including machine-based biceps curl, squat, and bench press) at an intensity of 60-80% of one-repetition maximum (1RM), 2 sets of 8-12 repetitions, 3 times per week for 8 weeks.

  • Free Weight-Based Resistance Training Group

    Other intervention

    Participants will perform supervised resistance exercises using free weights (dumbbells and barbell), including biceps curl, squat, and bench press, at an intensity of 60-80% of one-repetition maximum (1RM), 2 sets of 8-12 repetitions, 3 times per week for 8 weeks.

Treatment groups

26 Participants
are divided into 2 treatment groups
Group A: Free Weight Resistance Exercise GroupExperimental treatment 1 intervention
Group B: Machine-Based Resistance Exercise GroupExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Muscle Strength

Maximal voluntary strength of major muscle groups (upper and lower extremity) will be measured using 1-repetition maximum (1RM) tests for biceps curl, squat, and bench press. The heaviest weight that can be lifted once with proper form is recorded. Higher values indicate greater muscle strength.

Time frame
8 weeks

Secondary outcomes

1

Muscular Endurance - Upper Extremity

Upper extremity endurance will be assessed using the push-up test. Participants perform as many correct repetitions as possible within 1 minute. Higher repetitions indicate greater muscular endurance.

Time frame
8 weeks
2

Muscular Endurance - Lower Extremity

Lower extremity endurance will be assessed using the squat test. Participants perform as many correct repetitions as possible in one minute period. Higher repetitions indicate better muscular endurance.

Time frame
8 weeks
3

Neuromuscular Control - Upper Extremity

Upper extremity neuromuscular control will be measured using the Closed Kinetic Chain Upper Extremity Stability Test. Participants perform hand touches over a marked line in 15 seconds. The average number of successful touches over 3 trials is recorded; higher scores indicate better neuromuscular control.

Time frame
8 weeks
4

Neuromuscular Control - Lower Extremity

Lower extremity neuromuscular control will be measured using the Y-Balance Test. Participants maintain balance on one leg while reaching with the other leg in three directions (anterior, posteromedial, posterolateral). Average reach distances over 3 trials are recorded. Greater distances indicate better neuromuscular control.

Time frame
8 weeks

Other outcomes

Sponsors and contacts

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