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Lack of extensibility of the hamstrings is manifested by a restricion of knee extension range of motion.
To quantify the effect of a single pulsed shortwave diathermy treatment on extensibility of the hamstrings.
Twenty volunteers with tight hamstrings (< 150° of active knee extension).
Subjects were randomly allocated to receive either a pulsed shortwave diathermy treatment (experimental group) or a simulated pulsed shortwave diathermy treatment that did not produce a deep tissue heating effect.
Measurements of active and passive range of movement were recorded before and after the treatment, as well as the subjective level of discomfort perceived during the passive stretching.
No statistically signifcant differences were found.
A single pulsed shortwave diathermy treatment, without stretching, did not increase hamstring extensibility.
Alicia Martínez-Rodríguez, Olalla Bell, and Isabel Yañez-Brage are with the Faculty of Physical Therapy at the University of A Coruña in A Coruña, Spain.