Wessling, K C Effects of static stretch versus static stretch and ultrasound combined on triceps surae muscle extensibility in healthy women. [electronic resource] - Physical therapy May 1987 - 674-9 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0031-9023 Standard No.: 10.1093/ptj/67.5.674 doi Subjects--Topical Terms: AdultFemaleHumansLeg--physiologyMuscles--physiologyPhysical Therapy ModalitiesUltrasonics