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Comparison of Lower Extremity Parameters in Monofin and Bi-fin Swimmers.

NCT07621913 · Status: ACTIVE_NOT_RECRUITING · Type: OBSERVATIONAL · Enrollment: 42

Last updated 2026-06-02

No results posted yet for this study

Summary

The purpose of this study is to compare the leg muscle features and joint movements of swimmers who use a single large fin (monofin) versus those who use two fins (bi-fins). Different types of fins change how legs move in the water. This may affect the muscle structure and swimming performance. The researchers want to find out the differences between these two groups of swimmers.

During the study, the researchers will do the following:

Record the age, height, and weight of healthy swimmers who train regularly. Measure the stiffness and flexibility of the leg muscles using MyotonPro device.

Check how well the hips, knees, and ankles can move using digital goniometer.

The findings from this study will help create safer training programs for swimmers. Coaches will use the results to improve swimming performance and lower the risk of leg injuries.

Conditions

  • Lower Extremity Muscles Biomechanical Properties and Joint Range of Motion in Swimmers

Interventions

DEVICE

Measuring of the biomechanical properties of muscles with MyotonPro

MyotonPro is used to utilize the biomechanical properties of the muscle. During measurements, the patient will be seated in a chair with back support; the biomechanical properties of the rectus femoris, tibialis anterior, medial gastrocnemius, and hamstring muscles (F - Natural Oscillation Frequency \[Hz\], Tone or Tension ranges, S - Dynamic Stiffness \[N/m\], D - Logarithmic Decrease \[relative unit\], Elasticity increase, R - Mechanical Stress Relaxation Time \[ms\], C - Relaxation and Deformation Time Ratio \[relaxation and deformation time ratio \[N/m\]) will be measured bilaterally using Myoton PRO. All measurements will be tracked according to the mileage.

DEVICE

Measurement of the length of the lower extremity with a tape measure.

Swimmers' right and left leg lengths (cm) will be measured. All measurements will be tracked in terms of kilometers covered. All measurements will be compared statistically according to pallet types.

DEVICE

Measuring the range of motion of the lower extremity joints with a digital goniometer

Passive range of motion of the lower extremity shoulder joint (flexion, extension, adduction, abduction, external rotation, and internal rotation) will be measured using a digital goniometer. Results will be recorded in degrees (°). All measurements will be compared statistically according to pallet types.

Sponsors & Collaborators

  • Istanbul Gelisim University

    lead OTHER

Eligibility

Min Age
12 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-05-02
Primary Completion
2026-06-15
Completion
2026-06-30

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07621913 on ClinicalTrials.gov