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Completed

NCT Number: NCT07699822

Myofascial Line Training Effects on Mobility and Endurance in Adolescent Football Players

This study compared the effects of two myofascial chain training programs - the Superficial Posterior Line (PL) and the Spiral Line (SL) - on joint mobility and myofascial isometric endurance in adolescent male football players. Thirty-eight licensed male players (ages 15-16) were enrolled in a randomized crossover trial consisting of two 6-week training phases (12 weeks total), with follow-up measurements at week 16. Each program was delivered twice weekly in 30-minute sessions alongside regular club training. Joint mobility was assessed using goniometry (shoulder flexion, hip flexion, hip extension, popliteal angle), and myofascial isometric endurance was evaluated using the Bunkie Test across five lines (APL, PPL, PSL, LSL, MSL).

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Key information

Conditions

Athletic Performance Enhancement

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Mersin University

Mersin, 33343, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Male, aged 15-16 years (U15-U16 category)
  • Holding an active football player license and currently competing with a club team
  • Regularly participating in routine club training sessions
  • Free from any injury or musculoskeletal condition that could affect -performance testing at the time of enrollment
  • Parental/legal guardian consent and participant assent obtained

Exclusion criteria

  • Presence of any musculoskeletal injury, recent surgery, or medical condition affecting lower-limb function within the past 6 months
  • Inability to attend the required training sessions or assessment time points
  • Unwillingness or inability of parents/legal guardians to provide informed consent

Treatment and study plan

Superficial Posterior Line (PL) Myofascial Training

Behavioral

6-week myofascial training program targeting the posterior chain (plantar fascia, gastrocnemius, hamstrings, erector spinae). Two 30-minute sessions per week.

Spiral Line (SL) Myofascial Training

Behavioral

6-week myofascial training program targeting the spiral chain (rhomboids, serratus anterior, obliques, ITB, fibularis longus). Two 30-minute sessions per week.

Primary outcomes

  1. Myofascial Isometric Endurance (Bunkie Test)

    Time frame: Baseline, Week 6, Week 12, and Week 16

    Isometric endurance of five myofascial lines (APL, PPL, PSL, LSL, MSL) assessed in seconds using the Bunkie Test protocol.

  2. Shoulder Flexion Range of Motion

    Time frame: Baseline, Week 6, Week 12, and Week 16

    degrees

  3. Hip Flexion Range of Motion

    Time frame: Baseline, Week 6, Week 12, and Week 16

    degrees

  4. Hip Extension Range of Motion

    Time frame: Baseline, Week 6, Week 12, and Week 16

    degrees

  5. Popliteal Angle

    Time frame: Baseline, Week 6, Week 12, and Week 16

    degrees

Sponsors and collaborators

Lead sponsor

Mersin University

Other

Registry information

Official study title

Effects of Posterior vs. Spiral Myofascial Line Training on Joint Mobility and Myofascial Isometric Endurance in Adolescent Football Players: A Randomized Crossover Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jul 13, 2026
Registry last updated
Jul 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.

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