Changes in Intramuscular Blood Volume Induced by Continuous Shortwave Diathermy

The purpose of this study was to determine the relationship between the changes in intramuscular blood volume (IMBV) under continuous shortwave diathermy (CSWD) and compare them with the electric hot pack (EHP). The subjects consisted of 41 healthy adults, who received one of three interventions: CS...

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Bibliographic Details
Published in:Journal of Physical Therapy Science 2005, Vol.17(2), pp.71-79
Main Authors: Karasuno, Hiroshi, Morozumi, Kazunori, Fujiwara, Takayuki, Goh, Ah Cheng, Yamamoto, Iwao, Senga, Fujitoshi
Format: Article
Language:English
Subjects:
Intramuscular blood volume
Near-infrared spectroscopy
Shortwave diathermy
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Summary:The purpose of this study was to determine the relationship between the changes in intramuscular blood volume (IMBV) under continuous shortwave diathermy (CSWD) and compare them with the electric hot pack (EHP). The subjects consisted of 41 healthy adults, who received one of three interventions: CSWD (n=17), EHP (n=12), or no intervention (Controls: n=12). Analyses were done of the values obtained five minutes preceding the intervention (T1), during the intervention (T2), and after the intervention (T3). CSWD was applied with an output of 80 W. Both CSWD and EHP were applied for 10 min. Changes in IMBV of the right medial gastrocnemius muscle were evaluated using near-infrared spectroscopy (NIRS). Oxy-hemoglobin (oxy-Hb), deoxy-hemoglobin (deoxy-Hb), and total-hemoglobin (total-Hb) were measured using NIRS. At T2 in the CSWD trial, the integration values of oxy-Hb and total-Hb were significantly increased compared with those of the controls (p
ISSN:0915-5287
2187-5626
DOI:10.1589/jpts.17.71