Related Experiment Video
Updated: May 17, 2026

Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
Published on: June 10, 2025
U14 Players Selected Into a Gaelic Football Development Program Are More Mature, Bigger, Faster, and More Powerful
Aaron Kyles1,2, Jon L Oliver1,3, Rhodri S Lloyd1,3,4
1Youth Physical Development Centre, School of Sport, Cardiff Metropolitan University, Wales, United Kingdom.
Abstract:
Kyles, A, Oliver, JL, Lloyd, RS, Pedley, J, Cahill, MJ, and Lacey, K. U14 players selected into a Gaelic football development program are more mature, bigger, faster, and more powerful than their nonselected peers. J Strength Cond Res 40(7): e684-e691, 2026-Selection decisions for academy sporting systems are often made when players are at a young age and still physically developing. The purpose of this study was to investigate how maturity, size, and physical performance are associated with, and could predict, selection into an U14 male Gaelic football academy. Eighty-three U14 male Gaelic footballers were assessed for maturity and anthropometrics (height, body mass), jump performance (countermovement jump, standing broad jump [SBJ], jump, drop jump [DJ]), speed (10 and 30 m sprint times), and linear repeated sprint ability before being selected ( n = 53) or nonselected ( n = 30) into a county Gaelic football academy. There was no difference in age between groups (odds ratio [OR] = 1.27, p > 0.05), but selected players were significantly more mature (OR = 2.47, p < 0.01), taller (OR = 2.24, p < 0.01), and heavier (OR = 1.89, p < 0.05) than nonselected players. When categorized into bands, early maturing players were 10 times more likely to be selected than their late maturing peers (OR = 10.21, p = 0.01). Furthermore, selected players were superior across physical performance measures, notably sprinting faster, jumping higher and further, and producing more power than their nonselected peers (range in OR = 2.10-3.21, all p < 0.05). Collectively, measures of height, 10 and 30 m sprint time, repeated sprint time, SBJ, and DJ contact time significantly differentiated between groups (OR = 6.52) with excellent predictive ability (area under curve = 0.90). Boys selected into an U14 Gaelic football academy were bigger and physically fitter than their nonselected peers. Youth practitioners currently place importance on physical fitness qualities; however, given superior size and fitness at U14 age is likely to be largely influenced by maturity status, maturity should be accounted for when making selection decisions into talent development pathways.
Related Concept Videos
Social Foundations of Self II: The Generalized Other
Signs of Puberty
Social Facilitation
Changes in the Appendicular Skeleton with Age
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Relationship with Other Adult Family Members and Siblings
Standard Deviation
