When is Sportgene Kinder actually useful?

The utility of 'sports gene' tests for children is extremely limited based on current evidence. Variants like ACTN3 rs1815739 have very small effect sizes on athletic performance; training, environment, and motivation are far more influential. Even in adults, predictive value is low. In children, bodies and abilities are still developing, and early specialization based on genetic results can increase injury risk and cause psychosocial harm. Professional guidelines advise against such testing for talent identification. The evidence behind these tests is mostly marketing-driven, not clinically validated. The only justifiable use would be in controlled research settings, not direct-to-consumer. Parents should focus on diverse physical activity and enjoyment rather than genetic predictions.