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Completed

NCT Number: NCT07414238

Effect of Vibration and Non-Vibration Foam Rolling

This study aims to compare the immediate effects of vibration and non-vibration foam rolling on the biomechanical and viscoelastic properties of knee flexor and extensor muscles in young male recreational athletes. Fourteen athletes will be included in this study, planned as a randomized controlled cross-over study. All athletes will complete three interventions: 1) vibration foam rolling (VFR), 2) non-vibration foam rolling (FR), and 3) rest control. Pre- and post-test assessment will include the biomechanical and viscoelastic properties of knee flexor and extensor muscles, assessed with the MyotonPro.

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Key information

Conditions

Self-Myofascial Release

Age range

18 year–22 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Manisa Celal Bayar University

Manisa, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • To volunteer to participate in the study
  • To engage in sports activities at least 2-3 days a week

Exclusion criteria

  • Players with a history of major sports injury or time-loss injury that required surgery
  • Musculoskeletal problems that compromised their performance in the study
  • A history of lower extremity pathology in the 3 months before the study

Treatment and study plan

VFR

Other

Athletes will be performed three sets of VFR for 30 s, with a 30 s break between each set and exercise. The rolling frequency will be standardized using a metronome set at 60 beats per minute. Athletes will be instructed to roll at a velocity of two metronome beats for each rolling direction. Intensity of pressure will be controlled with a target rating of 7 of 10 on a Numerical Rating Scale (0 = no discomfort and 10 = maximum discomfort) during VFR intervention. The target muscle groups will be the anterior and posterior thigh. During VFR, the vibrator booster will be set to a frequency of 48 hz, which is within the optimal frequency range (12 to 90 hz) to influence the musculoskeletal system, and an amplitude of 1.95 mm.

FR

Other

Athletes will be performed three sets of FR for 30 s, with a 30 s break between each set and exercise. The rolling frequency will be standardized using a metronome set at 60 beats per minute. Athletes will be instructed to roll at a velocity of two metronome beats for each rolling direction. Intensity of pressure will be controlled with a target rating of 7 of 10 on a Numerical Rating Scale (0 = no discomfort and 10 = maximum discomfort) during FR intervention. The target muscle groups will be the anterior and posterior thigh. The FR will be conducted using the same vibration foam rolling device, but with the vibration mode deactivated. This ensures that the physical dimensions and material properties of the roller remain constant across conditions, with the only variable being the presence or absence of mechanical vibration.

Primary outcomes

  1. Muscle tone

    Time frame: one week

    The muscle tone (Hz), as a biomechanical property of the knee flexors and extensors, will be assessed using the MyotonPro (Myoton AS, Tallinn, Estonia). The rectus femoris will be preferred as the primary extensor and the biceps femoris as the principal flexor for the assessment, due to their anatomical and functional centrality. To ensure accuracy, the probe will be applied perpendicularly in three successive increments, with automatic alerts for any deviation. The rectus femoris measurement will be taken at the midpoint between the anterior superior iliac spine and the medial patellar border, with the subject supine and a 20 cm roller under the knees. For the biceps femoris, the subject will be prone with an ankle pillow for relaxation, with measurements taken at the midpoint of the long head's longitudinal axis to ensure consistency. Each muscle will be measured twice in immediate succession, using the mean for analysis.

  2. Stiffness

    Time frame: one week

    The stiffness (N/m), as a biomechanical property of the knee flexors and extensors, will be assessed using the MyotonPro (Myoton AS, Tallinn, Estonia). The rectus femoris will be preferred as the primary extensor and the biceps femoris as the principal flexor for the assessment, due to their anatomical and functional centrality. To ensure accuracy, the probe will be applied perpendicularly in three successive increments, with automatic alerts for any deviation. The rectus femoris measurement will be taken at the midpoint between the anterior superior iliac spine and the medial patellar border, with the subject supine and a 20 cm roller under the knees. For the biceps femoris, the subject will be prone with an ankle pillow for relaxation, with measurements taken at the midpoint of the long head's longitudinal axis to ensure consistency. Each muscle will be measured twice in immediate succession, using the mean for analysis.

  3. Elasticity

    Time frame: one week

    The elasticity (unitless), as a biomechanical property of the knee flexors and extensors, will be assessed using the MyotonPro (Myoton AS, Tallinn, Estonia). The rectus femoris will be preferred as the primary extensor and the biceps femoris as the principal flexor for the assessment, due to their anatomical and functional centrality. To ensure accuracy, the probe will be applied perpendicularly in three successive increments, with automatic alerts for any deviation. The rectus femoris measurement will be taken at the midpoint between the anterior superior iliac spine and the medial patellar border, with the subject supine and a 20 cm roller under the knees. For the biceps femoris, the subject will be prone with an ankle pillow for relaxation, with measurements taken at the midpoint of the long head's longitudinal axis to ensure consistency. Each muscle will be measured twice in immediate succession, using the mean for analysis.

Secondary outcomes

  1. The mechanical stress relaxation time

    Time frame: one week

    The mechanical stress relaxation time (ms), as a viscoelastic property of the knee flexors and extensors, will be assessed using the MyotonPro (Myoton AS, Tallinn, Estonia). The rectus femoris will be preferred as the primary extensor and the biceps femoris as the principal flexor for the assessment, due to their anatomical and functional centrality. To ensure accuracy, the probe will be applied perpendicularly in three successive increments, with automatic alerts for any deviation. The rectus femoris measurement will be taken at the midpoint between the anterior superior iliac spine and the medial patellar border, with the subject supine and a 20 cm roller under the knees. For the biceps femoris, the subject will be prone with an ankle pillow for relaxation, with measurements taken at the midpoint of the long head's longitudinal axis to ensure consistency. Each muscle will be measured twice in immediate succession, using the mean for analysis.

  2. The ratio of relaxation and deformation time

    Time frame: one week

    The ratio of deformation and relaxation time (unitless), as a viscoelastic property of the knee flexors and extensors, will be assessed using the MyotonPro (Myoton AS, Tallinn, Estonia). The rectus femoris will be preferred as the primary extensor and the biceps femoris as the principal flexor for the assessment, due to their anatomical and functional centrality. To ensure accuracy, the probe will be applied perpendicularly in three successive increments, with automatic alerts for any deviation. The rectus femoris measurement will be taken at the midpoint between the anterior superior iliac spine and the medial patellar border, with the subject supine and a 20 cm roller under the knees. For the biceps femoris, the subject will be prone with an ankle pillow for relaxation, with measurements taken at the midpoint of the long head's longitudinal axis to ensure consistency. Each muscle will be measured twice in immediate succession, using the mean for analysis.

Sponsors and collaborators

Lead sponsor

Manisa Celal Bayar University

Other

Registry information

Official study title

Immediate Effects of Vibration and Non-vibration Foam Rolling on the Biomechanical and Viscoelastic Properties of Knee Flexor and Extensor Muscles in Young Male Recreational Athletes: a Randomized, Controlled, Cross-over Study

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Feb 17, 2026
Registry last updated
Mar 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.