Waldron, Mark A comparison of physical abilities and match performance characteristics among elite and subelite under-14 soccer players. [electronic resource] - Pediatric exercise science Aug 2013 - 423-34 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1543-2920 Standard No.: 10.1123/pes.25.3.423 doi Subjects--Topical Terms: AccelerationAdolescentAthletes--statistics & numerical dataAthletic PerformanceHeart Rate--physiologyHumansMaleMuscle Strength--physiologyPhysical Endurance--physiologyPhysical ExertionPhysical Fitness--physiologyProfessional CompetenceRecreationRunning--physiologySampling StudiesSoccer--physiologyTime FactorsUnited Kingdom