NCT07699822

Brief Summary

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).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 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

Study Start

First participant enrolled

May 5, 2025

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 22, 2025

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 25, 2026

Completed
18 days until next milestone

First Posted

Study publicly available on registry

July 13, 2026

Completed
Last Updated

July 13, 2026

Status Verified

July 1, 2026

Enrollment Period

4 months

First QC Date

June 25, 2026

Last Update Submit

July 7, 2026

Conditions

Athletic Performance Enhancement

Keywords

Myofascial linessuperficial posterior linespiral lineBunkie testrange of motion

Outcome Measures

Primary Outcomes (5)

  • Myofascial Isometric Endurance (Bunkie Test)

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

    Baseline, Week 6, Week 12, and Week 16

  • Shoulder Flexion Range of Motion

    degrees

    Baseline, Week 6, Week 12, and Week 16

  • Hip Flexion Range of Motion

    degrees

    Baseline, Week 6, Week 12, and Week 16

  • Hip Extension Range of Motion

    degrees

    Baseline, Week 6, Week 12, and Week 16

  • Popliteal Angle

    degrees

    Baseline, Week 6, Week 12, and Week 16

Study Arms (2)

PL-First Group (PLFG)

EXPERIMENTAL

Participants first completed 6 weeks of Superficial Posterior Line (PL) myofascial training, followed by 6 weeks of Spiral Line (SL) myofascial training.

Behavioral: Superficial Posterior Line (PL) Myofascial TrainingBehavioral: Spiral Line (SL) Myofascial Training

SL-First Group (SLFG)

EXPERIMENTAL

Participants first completed 6 weeks of Spiral Line (SL) myofascial training, followed by 6 weeks of Superficial Posterior Line (PL) myofascial training.

Behavioral: Superficial Posterior Line (PL) Myofascial TrainingBehavioral: Spiral Line (SL) Myofascial Training

Interventions

Superficial Posterior Line (PL) Myofascial TrainingBEHAVIORAL

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

PL-First Group (PLFG)SL-First Group (SLFG)
Spiral Line (SL) Myofascial TrainingBEHAVIORAL

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

PL-First Group (PLFG)SL-First Group (SLFG)

Eligibility Criteria

Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mersin University

Mersin, Mersin, 33343, Turkey (Türkiye)

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assoc. Dr.

Study Record Dates

First Submitted

June 25, 2026

First Posted

July 13, 2026

Study Start

May 5, 2025

Primary Completion

September 1, 2025

Study Completion

December 22, 2025

Last Updated

July 13, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share

Locations

TU(1)