Sports science has made great progress in describing what today's elite athletes do and which physiological capacities they possess at the top level.For example, we know that Olympic endurance champions often log hundreds of training hours annually with a smart mix of high-and low-intensity work, and they exhibit exceptional aerobic power, efficiency, and sport-specific strength. 1These attributes are well documented in cross-sectional studies of world-class performers.However, understanding how an athlete develops those capacities over time is an entirely different challenge-one that remains poorly understood scientifically.In other words, we can describe the end product (the elite training regimes and capacities), but we know far less about the process and development pathway that produces that result.A key reason for this knowledge gap is the lack of longitudinal data: few studies track athletes from youth through their peak.Peak performance in many sports typically is not reached until the midto-late 20 years of age, usually after a decade or more of systematic training. 2,3In endurance disciplines, for instance, champions mature through years of progressive training development, technical refinement, and physiological adaptation.Correspondingly, early youth performance often has limited power to predict senior elite success.A broader systematic review across sports concluded that successful juniors and successful adults are often entirely different populations. 4In other words, today's youth medalists are not guaranteed to become tomorrow's Olympians, and many eventual stars do not shine until later adolescence or adulthood.Paradoxically, talent selection systems in many countries continue to act as if we can identify a future superstar in a young teenager.Children are often channeled into "elite" pathways or dropped from squads based on early results or growth-driven advantages -criteria that science tells us are at best shaky predictors of adult performance. 4,5The consequence is two-fold: (1) we risk overlooking late developers who might blossom with more time, and (2) we may burn out or over-specialize early talents who dominate youth competitions but stagnate later.A meta-analysis of talent development programs concluded that intensive early talent promotion offers no reliable boost to senior outcomes. 5Put bluntly, selecting athletes too early (and deselecting others) can do more harm than good, given the complex and nonlinear nature of athlete development.So, what should we do?Real-world evidence and experience suggest that a better approach is to keep the talent pool broad for a longer time and emphasize long-term development over early selection.Researchers who study Olympic pathways increasingly
Sandbakk et al. (Thu,) studied this question.
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