Comparison of Lower Extremity Parameters in Monofin and Bi-fin Swimmers.
Comparison of Lower Extremity Muscle Biomechanical Properties, Joint Range of Motion, and Performance Parameters in Monofin and Bi-fin Swimmers
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.
Descripción general del estudio
Estado
Tipo de estudio
Inscripción (Estimado)
Contactos y Ubicaciones
Ubicaciones de estudio
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Avcılar
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Istanbul, Avcılar, Turquía (Türkiye), 34310
- Istanbul Gelisim University
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
Acepta Voluntarios Saludables
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- Inclusion Criteria:
- Being between 12-18 years old
- Having been involved in at least one swimming style for at least 3 years
- Having participated in at least one competition
- Obtaining parental consent. Obtaining parental consent.
Exclusion Criteria:
- - Having undergone any surgery on the shoulder girdle muscles.
- Having any orthopedic or physical disorder in the shoulder girdle muscles (e.g., frozen shoulder).
- Participating in another sport besides swimming.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
Intervención / Tratamiento |
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Monofin swimmers
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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.
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.
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.
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Bi-fin swimmers
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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.
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.
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.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Measuring the biomechanical properties of muscles with MyotonPro
Periodo de tiempo: From enrollment to the end of treatment at 6 weeks
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Bilaterally Biomechanical properties (F - Natural Oscillation Frequency [Hz], characterizing Tone or Tension, S - Dynamic Stiffness [N/m], D - Logarithmic Decrement [relative unit], characterizing Elasticity, R - Mechanical Stress Relaxation Time [ms], C - Ratio of Relaxation and Deformation time [relative unit], characterizing Creep) of the rectus femoris, tibialis anterior, medial gastrocnemius and hamstring muscles were measured using Myoton PRO. Because the MyotonPRO assessment yields a single-session composite outcome by presenting all relevant units concurrently on the screen, these variables were treated as a whole rather than being documented separately. |
From enrollment to the end of treatment at 6 weeks
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Measuring the length of lower extremity using a tape measure.
Periodo de tiempo: From enrollment to the end of measurements at 6 weeks.
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The measuring tape will be used to measure the swimmers' Right and left legs length (cm).
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From enrollment to the end of measurements at 6 weeks.
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Measuring the range of motion of the lower extremity using a digital goniometer
Periodo de tiempo: From enrollment to the end of 6 weeks.
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Passive range of motion of the lower extremity joints (flexion, extension, adduction, abduction, external rotation, and internal rotation) will be measured using a digital goniometer.
Results will be recorded in degrees (°)
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From enrollment to the end of 6 weeks.
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Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Otros números de identificación del estudio
- 27.04.2026-2026/04
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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