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Completed

NCT Number: NCT07152275

Percussive Therapy in U19 Males: Flexibility, Balance, Jump

This study aims to evaluate the effects of percussive therapy on muscle flexibility, balance, and jump performance in licensed U19 football players and sedentary healthy males under 19. Percussive therapy will be applied to the hamstring muscles for 120 seconds. Flexibility, balance, and explosive strength will be assessed using the sit-and-reach test, Y-Balance Test, and vertical jump test, respectively. The study also aims to compare the therapy's effects between active and sedentary participants.

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Key information

Conditions

Physical Inactivity Athletic Performance Behavior Postural Balance Sedentary Behavior

Age range

15 year–19 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Yuksek Ihtisas University

Ankara, Turkey (Türkiye)

About this study

This study investigates the effects of 120-second percussive therapy applied to the hamstring muscles on flexibility, balance, and jump performance in two distinct groups: licensed U19 football players and sedentary healthy males under the age of 19. The intervention will be delivered using a handheld massage gun device, and outcomes will be evaluated using the sit-and-reach test (flexibility), the Y-Balance Test (dynamic balance), and the My Jump Lab mobile app (jump performance). Pre- and post-intervention assessments will be compared within each group, and the results will also be analyzed to identify any differences in response between the active and sedentary participants.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

(Participants must meet all of the following to be eligible.)

  • Male individuals aged 15 to 19 years
  • Voluntarily agreeing to participate

**For the athlete group:

  • Actively licensed U19 football player

**For the sedentary group:

  • No regular physical activity for the past 6 months
  • Body Mass Index (BMI) under 25 kg/m2
  • Physical activity level below 3000 MET-min/week as assessed by the International Physical Activity Questionnaire (IPAQ)

Exclusion criteria

(Participants will be excluded if they meet any of the following.)

  • Presence of acute or chronic lower extremity injuries
  • History of lower extremity surgery
  • Inability to tolerate percussive therapy
  • Leg length discrepancy
  • Restricted lower extremity joint range of motion due to any condition

Treatment and study plan

Percussive Therapy

Device

Percussive therapy will be administered using the "Hypervolt Go 2 Black," a massage gun commonly used in clinical and athletic settings.

Participants will lie in a prone position on a treatment table. To promote hamstring muscle relaxation, a support roll will be placed under the ankle. The intervention will be delivered by the same researcher for all participants to ensure consistency. Using the round head attachment, percussive therapy will be applied longitudinally along the hamstring muscle group (from proximal to distal) for a total of 120 seconds per leg. Specifically, 60 seconds will be applied to the semitendinosus and semimembranosus, and 60 seconds to the biceps femoris. The same procedure will then be repeated on the opposite leg.

Primary outcomes

  1. Change in Hamstring Flexibility

    Time frame: Within 1 hour (pre- and post-intervention)

    Flexibility will be assessed using the sit-and-reach test before and after percussive therapy. The best of three attempts (in centimeters) will be recorded.

  2. Change in Dynamic Balance

    Time frame: Within 1 hour (pre- and post-intervention)

    Balance will be evaluated using the Y-Balance Test in three directions (anterior, posteromedial, and posterolateral). Results will be normalized based on leg length and averaged (% of leg length).

  3. Change in Vertical Jump Performance

    Time frame: Within 1 hour (pre- and post-intervention)

    Explosive strength will be measured using the My Jump Lab app, which calculates jump height and flight time. The best result of the three trials (in centimeters) will be used.

Sponsors and collaborators

Lead sponsor

Hacettepe University

Other

Collaborators

  • Yuksek Ihtisas University

Registry information

Official study title

The Effect of Percussive Therapy on Muscle Flexibility, Balance, and Jump Performance in Licensed U19 Football Players and Sedentary Healthy Males Under 19 Years of Age

Important dates

Study start
2025
Primary completion
2025
Study completion
2026
First posted
Sep 3, 2025
Registry last updated
Jan 9, 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.

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