Physiological and biomechanical foundations of speed-strength qualities in 11–14-year-old female boxers

This article presents a structured narrative review of the physiological, biomechanical, and sports-pedagogical foundations of speed-strength qualities in 11–14-year-old female boxers, integrating evidence from 20 peer-reviewed sources published between 2000 and 2026. The analysis indicates that in boxing, speed-strength is not merely isolated muscular strength but a complex integral quality involving neuromuscular mobilization, rate of force development, ground reaction force, efficient energy transfer along the kinetic chain, punching impulse, and the technically effective manifestation of power. Quantitative ranges of rate of force development, punching impulse, kinetic chain timing, and peak punch force reported in the cited literature are summarized in the Results section to support these mechanistic claims. For girls aged 11–14 years, the synthesized evidence suggests that priority should be given not to maximal resistance training but to the consistent development of movement quality, rotational power, coordinated involvement of the lower body and trunk, reaction-based tasks, and explosive exercises integrated with specific punching techniques. The review concludes that, on the basis of the available literature, the effectiveness of speed-strength preparation appears to be enhanced when general strength exercises, explosive movements with light-to-moderate resistance, medicine ball throws, reactive jumps, and special punching combinations are applied progressively and systematically. Quantitative support for these conclusions, including correlation and effect-size patterns from primary studies, is presented in the Results.