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Effects of Myofascial Release, Dynamic and Static Stretching in Adolescent Karate Athletes
Sponsor: Istinye University
Summary
This randomized single-blind crossover trial investigated the acute effects of three different exercise modalities, namely self-myofascial release with a foam roller, dynamic stretching, and static stretching, on posture, flexibility, dynamic balance, and lower-extremity performance in adolescent karate athletes (12-18 years). Participants attended four weekly sessions at the same time of day and after a 48-hour rest period. In the first week a baseline (control) measurement was performed, and in the following three weeks each participant received the three interventions in a randomized order. Outcomes included a four-view smartphone-based posture analysis (PostureScreen Mobile), the Sit-and-Reach Test, the Y Balance Test, the 30-second Sit-to-Stand Test, and the Vertical Jump Test (My Jump Lab 2). The aim was to identify which warm-up modality offers the greatest acute benefit before karate-specific performance
Official title: A Comparison of the Acute Effects of Myofascial Release, Dynamic Stretching, and Static Stretching Exercises on Posture, Flexibility, Balance, and Performance in Adolescent Karate Athletes
Key Details
Gender
All
Age Range
12 Years - 18 Years
Study Type
INTERVENTIONAL
Enrollment
48
Start Date
2025-05-01
Completion Date
2025-07-30
Last Updated
2026-05-07
Healthy Volunteers
Yes
Conditions
Interventions
Static Stretching
Single-session static stretching protocol for the lower-extremity (knee flexors, knee extensors, hip extensors): 30-second hold x 5 repetitions x 15-second rest, performed under physiotherapist supervision.
Dynamic Stretching
Single-session dynamic stretching protocol targeting the hip flexors/extensors and knee flexors/extensors with continuous walking-based movements; 30 seconds x 5 sets per exercise with 15-second rest, performed under physiotherapist supervision.
Self Myofascial Release
Self-myofascial release applied with a medium-density EVA foam roller. Each lower-extremity muscle group received 5 sets of 30-second rolling at 40-60 bpm, with 4-second forward-and-back rolling cycles, performed under physiotherapist supervision
Locations (1)
Istinye University
Istanbul, Turkey (Türkiye)