NCT06994013

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 20, 2025

Completed
Same day until next milestone

Study Start

First participant enrolled

May 20, 2025

Completed
9 days until next milestone

First Posted

Study publicly available on registry

May 29, 2025

Completed
7 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 5, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 5, 2025

Completed
Last Updated

June 27, 2025

Status Verified

June 1, 2025

Enrollment Period

16 days

First QC Date

May 20, 2025

Last Update Submit

June 26, 2025

Conditions

Keywords

Recreational athletesFlexibilityDynamic balanceVertical jump

Outcome Measures

Primary Outcomes (1)

  • Flexibility

    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.

    two weeks

Secondary Outcomes (2)

  • Dynamic balance

    two weeks

  • Vertical jump

    two weeks

Study Arms (3)

HFVFR Group

ACTIVE COMPARATOR

Athletes will be performed three sets of HFVFR 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 HFVFR intervention. The target muscle groups and/or body sides will be anterior thigh, posterior thigh, posterior calf, iliotibial-band, and gluteals (buttocks).During HFVFR, the vibrator booster will be set to a frequency of 67 hz, which is within the optimal frequency range (12 to 90 hz) to influence musculoskeletal system, and an amplitude of 1.95 mm.

Other: High-frequency vibration foam rolling

LFVFR Group

ACTIVE COMPARATOR

Athletes will be performed three sets of LFVFR 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 LFVFR intervention. The target muscle groups and/or body sides will be anterior thigh, posterior thigh, posterior calf, iliotibial-band, and gluteals (buttocks).During LFVFR, the vibrator booster will be set to a frequency of 35 hz, which is within the optimal frequency range (12 to 90 hz) to influence musculoskeletal system, and an amplitude of 1.95 mm.

Other: Low-frequency vibration foam rolling

Control Group

NO INTERVENTION

No intervention will be applied to the control group.

Interventions

Athletes will be performed three sets of HFVFR 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 HFVFR intervention. The target muscle groups and/or body sides will be anterior thigh, posterior thigh, posterior calf, iliotibial-band, and gluteals (buttocks).During HFVFR, the vibrator booster will be set to a frequency of 67 hz, which is within the optimal frequency range (12 to 90 hz) to influence musculoskeletal system, and an amplitude of 1.95 mm.

HFVFR Group

Athletes will be performed three sets of LFVFR 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 LFVFR intervention. The target muscle groups and/or body sides will be anterior thigh, posterior thigh, posterior calf, iliotibial-band, and gluteals (buttocks).During LFVFR, the vibrator booster will be set to a frequency of 35 hz, which is within the optimal frequency range (12 to 90 hz) to influence musculoskeletal system, and an amplitude of 1.95 mm.

LFVFR Group

Eligibility Criteria

Age20 Years - 23 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Manisa Celal Bayar University

Manisa, 45030, Turkey (Türkiye)

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Outcome measures assessments will be performed by an investigator who is blinded to group allocation
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
CROSSOVER
Model Details: Randomized controlled cross-over study design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 20, 2025

First Posted

May 29, 2025

Study Start

May 20, 2025

Primary Completion

June 5, 2025

Study Completion

June 5, 2025

Last Updated

June 27, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will not share

There is no plan to make individual participant data (IPD) available to other researchers.

Locations