Lyons, Christian L Differences in quadriceps femoris muscle torque when using a clinical electrical stimulator versus a portable electrical stimulator. [electronic resource] - Physical therapy Jan 2005 - 44-51 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0031-9023 Subjects--Topical Terms: AdultElectric Stimulation--instrumentationFemaleHumansIsometric Contraction--physiologyMaleMiddle AgedMuscle, Skeletal--physiologyThigh--physiologyTorque