Escamilla, Rafael F Core muscle activation during Swiss ball and traditional abdominal exercises. [electronic resource] - The Journal of orthopaedic and sports physical therapy May 2010 - 265-76 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0190-6011 Standard No.: 10.2519/jospt.2010.3073 doi Subjects--Topical Terms: AdultAnalysis of VarianceElectromyographyExercise TestExercise Therapy--methodsFemaleHumansLow Back Pain--rehabilitationLumbar Vertebrae--physiologyLumbosacral Region--physiologyMaleMuscle Contraction--physiologyMuscle, Skeletal--physiologyPostureRectus Abdominis--physiologyRegression Analysis