Acute Effects of High- vs. Low-frequency Vibration Foam Rolling

Not Applicable

Completed

• Conditions: Myofascial Release

• Registration Number: NCT06994013
• Lead Sponsor: Celal Bayar University

Brief Summary

This study aims to compare the acute effects of low- and high-frequency vibration foam rolling on flexibility, dynamic balance, and vertical jump in young male recreational athletes. Fourteen athletes will be included in this study, planned as a randomized controlled cross-over study. All athletes wil be completed three interventions: 1) low-frequency vibration foam rolling (LFVFR), 2) high-frequency vibration foam rolling (HFVFR), 3) rest control. Pre- and post-test assessment will be included flexibilty, assessed with the sit-and-reach test; dynamic balance, assessed with the Y balance test; and vertical jump, assessed with the vertical jump test.

Detailed Description

Not available

Study Timeline

• Study Start: 2025-05-20
• Study First Submitted: 2025-05-20
• Study First Submitted QC: 2025-05-20
• Study First Posted: 2025-05-29
• Status Verified: 2025-06
• Primary Completion: 2025-06-05
• Study Completion: 2025-06-05
• Last Update Submitted: 2025-06-26
• Last Update Posted: 2025-06-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 14

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
• used any drugs or supplements

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
Flexibility	two weeks	Flexibility will be assessed with the sit-and-reach test using an adjustable sit-and-reach bench (Adjustable Sit-and-Reach Flexibility Tester, Lafayette Instrument Company, Lafayette IN, USA). The sit-and-reach test is a valid and reliable method used to assess flexibility in many studies. First, the sit-and-reach bench placed on the mat will be fixed to the wall, and the players will be asked to place the soles of their feet on the sit-reach bench with their knees completely straight on the mat. Then, after one trial, players will be asked to reach forward as far as possible three times without bending their knees, and the average of the three assessments will be used for analysis.

Secondary Outcome Measures

Name	Time	Method
Dynamic balance	two weeks	Dynamic balance will be assessed with the Y balance test. Before the assessment, the players will be performed three trials each with 30-second rest intervals for the dominant extremity, and after the trials, the players will be given a five-minute recovery period. During the assessment after the recovery process, to ensure standardization, the players will be asked to position their dominant extremity at the centre of the junction of the measuring tapes, lie on the measuring tape with their non-dominant extremity, extending as far as possible in the anterior, posterolateral, and posteromedial directions, and touch the furthest point they could reach with their toes. This procedure will be performed by players three times with 30-second rest intervals. The greater reach distance for each direction will be calculated with the formula \[(reaching distance/lower extremity length) x 100 = percentage of the maximum reaching distance)\], and will be normalised with the extremity length.
Vertical jump	two weeks	Vertical jump will be assessed with the Performanz JumpR, a valid and reliable device for assessing different jump performances.This device measures jump height based on the individual's flight time using the equation (jump height= 980.6653(flight time/1000.0)2/8). It also calculates anaerobic power using the individual's weight, flight time, and contact time using the equation (anaerobic power=weight x \[9.813(flight time/2000,000)/(contact time/1000)\]). For each jump, subjects will be instructed to jump as high as possible and keep their hands on their hips. There will be 1 minute of rest between jumps. All athletes will be received instructions to maximize their jump height and were verbally encouraged to exert maximum effort during all jump trials. The average of the three assessments will be used for analysis.

Trial Locations

Locations (1)

Manisa Celal Bayar University; 🇹🇷 Manisa, Turkey