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The physical principles of short wave and so-called conventional diathermy are dealt with in a readable and nonmathematical fashion. Because of the almost complete disappearance of the practice of "conventional diathermy," the discussion relating to this subject is more of historical interest than practical value. It is generally felt that there is no critical evidence to substantiate any effect of diathermy other than the thermal effect. One might question the soundness of the author's opinion that there is an "athermal action." Much of the text relating to clinical application considers methods of applying pad and airspaced electrodes. Methods of applying conventional diathermy, an almost archaic practice, should have been replaced by discussion of microwave diathermy; however, the author feels that there is insufficient clinical evidence to make it of definite therapeutic value. The purpose of the second edition is to inform the physical therapist and the English physician seeking the
Diathermy: Short-Wave Therapy, Inductothermy, Epithermy, Long-Wave Therapy. JAMA. 1952;148(5):415. doi:10.1001/jama.1952.02930050087030