Abstract
The relationship between regional scientific investment and international competitive achievement in handball has never been systematically examined. This scoping review addresses that gap by providing the first globally contextualised synthesis of contemporary handball research, drawing on 205 DOI-indexed, peer-reviewed, English-language studies published between 2020 and 2026 and identified through a PRISMA 2020-compliant search of four major databases (PubMed/MEDLINE, Scopus, Web of Science Core Collection, SPORTDiscus). Evidence was mapped across nine international research regions and six performance-science themes, and a novel Competitive Performance Index (CPI) was constructed from official IHF and EHF records to enable structured comparison between scientific output and senior men's competitive achievement across the same period. Regional analysis reveals four distinct science-performance relationship patterns. Scandinavia (CPI = 40; 16 studies) demonstrates convergence: sustained scientific leadership in injury epidemiology, neuromuscular risk profiling, and load monitoring co-evolves with four consecutive World Championship titles and Olympic gold. The Iberian Peninsula (CPI = 11; 39 studies, the highest volume of any region) and Central-Eastern Europe (CPI = 0; 30 studies) exhibit a leading-indicator pattern, in which scientific investment appears to precede competitive breakthrough by a temporal lag. The German-speaking region (CPI = 7; 28 studies) illustrates how frontier AI-driven performance analytics and youth championship success may function as competitive force multipliers. Western Europe (CPI = 15; 11 studies) demonstrates that strategically concentrated science sustains elite performance without high publication volume. Six thematic pillars structure the evidence base: biomechanics, injury risk and prevention, tactical and match performance, training physiology and conditioning, youth development and maturation, and technology-enhanced analytics. These domains are increasingly interdependent, reflecting a sport entering a phase of genuine scientific maturity. Critical structural gaps persist: approximately 74% of studies are male-only, North America and Oceania are almost entirely absent from the corpus, and the Technology-Enhanced Analytics category (5% of studies) substantially underestimates the true volume of technology-infused research due to the hierarchical classification rule applied. The CPI framework introduced here provides a replicable tool for examining science-performance alignment in handball and, with adaptation, in other team sports.