EntityQ1463093· pop 17· linked from 97 articlesexercise ballSign in to savesoft elastic ball used in physical therapy and exerciseConnectionsSwitzerlandCountryInternational Standard Book NumberEntitymuscleEntityBaselEntityabdomenEntitybackEntitydigital object identifierEntityThe Washington PostEntityphysical exerciseEntityInternet ArchiveEntityQ180686Entityphysical fitnessEntityGoogle BooksEntityphysiotherapyEntitypress-upEntitypilatesEntityrectus abdominis muscleEntityelectromyographyEntityelastomerEntitySimon & SchusterEntityCategories1963 introductionsBallsExercise equipmentInflatable manufactured goodsItalian inventions