Finger Dermatoglyphics as Predictive Markers of Physical Abilities: Applications in Athlete Selection and Training

Background: This article presents findings from over 13 years of research examining the association between finger dermatoglyphic traits - morphogenetic markers - and diverse manifestations of physical abilities in elite athletes, non-athletes, and individuals with congenital motor impairments.

Methods: The study encompassed more than 2,000 subjects, including 1,559 athletes (ages 14-36) across 25 sports disciplines, 69 individuals with cerebral palsy (ages 2-40), 202 university students (ages 18-24), and 291 children and adolescents (ages 4-16). Dermatoglyphic parameters assessed included pattern type (arch, loop, whorl), ridge count, delta index (D10), total ridge count (TRC), and phenotypic formula.

Results: Finger dermatoglyphic traits serve as markers for the preferential development of specific physical qualities, energy supply mechanisms of motor activity, and the risk of diminished physical potential. A systematic pattern was identified: D10, TRC, and whorl frequency increase progressively from cyclic speed-strength sports through cyclic endurance sports to acyclic coordination-dominant sports (p < 0.05 across all group comparisons). Arch-containing phenotypes (AL, ALW) were associated with reduced physical potential and predominantly creatine phosphate energy mechanisms, whereas loop-whorl phenotypes (LW, WL) predicted broader adaptive capacity with optimal performance under prolonged, high-coordination demands. The TRC/D10 ratio near 10 indicated normal regulatory balance, while deviations below 10 marked risk of diminished physical capacity. These findings were consistent across sex, with sport-specific modifications of sexual dimorphism reflecting the primacy of activity demands over biological sex in elite athlete selection.

Conclusion: The dermatoglyphic phenotyping method is proposed as a rapid, non-invasive tool for early talent identification, sport-specific selection, playing position assignment, and individualization of training methods.