MUNEER AL-TALAHMEH,IMED TOUHAMI,SABER ABDELLAOUI,ABDERRAOUF BEN ABDERRAHMAN
DOI: https://doi.org/This study examined the effects of bio-tensegrity training, designed around fascial lines and integrated movement patterns, on the performance of adolescent volleyball players. A randomized controlled trial was conducted with forty-two male athletes, aged around sixteen, who were assigned either to a neuro-myofascial line (NML) training group or a control group (CON) following conventional resistance and plyometric training. Over ten weeks, the NML group performed structured sessions targeting fascial pathways through dynamic multi-planar exercises and recovery-focused self-myofascial release, while the CON group continued standard weightlifting and plyometric routines matched for frequency and volume. Statistical analyses showed that the NML group achieved consistently greater improvements across all measured domains. Range of motion increased significantly in major joints, with ankle plantar flexion (+25.6%) and external shoulder rotation (+16.8%) showing the largest changes. Strength and power also improved more in the NML group, with deadlift 4RM rising by 31.7% and lower-limb anaerobic power by 32.2%, compared to minimal gains in controls. Flexibility improved by over 50% in the sit-and-reach test, while speed, agility, and balance all showed clear superiority in the NML group. Volleyball-specific skills also benefitted, with spike and block jump heights rising more than 10%, serve velocity improving by 22.4%, and serve accuracy increasing by 39.1%. These findings strongly support the bio-tensegrity framework, which views the body as a connected tensegrity system rather than isolated muscle units. The study not only confirms the feasibility and safety of fascial-based training in youth athletes but also highlights adolescence as an ideal stage to introduce holistic approaches that build efficiency, resilience, and long-term performance potential in volleyball.