Clark, James E The use of an 8-week mixed-intensity interval endurance-training program improves the aerobic fitness of female soccer players. [electronic resource] - Journal of strength and conditioning research Jul 2010 - 1773-81 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1533-4287 Standard No.: 10.1519/JSC.0b013e3181ce2495 doi Subjects--Topical Terms: AdolescentAthletesExercise--physiologyFemaleHumansOxygen Consumption--physiologyPhysical Endurance--physiologyPhysical Fitness--physiologySoccer--physiologyYoung Adult