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The Journal of Sports Medicine and Physical Fitness 2001 December;41(4):521-7

Copyright © 2002 EDIZIONI MINERVA MEDICA

language: English

A controlled study on the effects of hyperthermia at 434 MHz and conventional ultrasound upon muscle injuries in sport

Giombini A., Casciello G. *, Di Cesare M. C. **, Di Cesare A. *, Dragoni S., Sorrenti D. *

From the Institute of Sports Science Italian National Olympic Committee * Post-Graduate School in Sports Medicine and ** Institute of Statistic Science University of Rome «La Sapienza», Rome, Italy


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Background. Hyperthermia equip­ment ­using a 434 MHz appli­ca­tor ­with ­water ­bolus ele­vate to ther­a­peu­tic tem­per­a­tures (from 41 to 45°C) delin­eat­ed vol­umes of tis­sue tar­get, ­down to a ­depth of 3 to 5 cm. The aim of our ­study was to eval­u­ate the effi­ca­cy of hyper­ther­mia in the treat­ment of mus­cle inju­ries, in com­par­i­son ­with a con­ven­tion­al modal­ity ­like ultra­sound.
Methods. A pros­pec­tive ran­dom­ised con­trolled ­design was ­used. Forty ­patients, 29 ­males and 11 ­females, ­with ­mean age of 26.2±3 rang­ing ­between 18 and 35 ­years affect­ed by ­acute mus­cu­lar inju­ries of dif­fer­ent ­sites and sever­ity par­tic­i­pat­ed ­this ­study. Twenty-one ­patients ­received hyper­ther­mia (­group A) and the remain­ing 19 (­group B) ultra­sound. Both ­groups ­received nine appli­ca­tions, ­three ­times per ­week ­with a dura­tion of 30’ for the ­group (A), and 15’ for the ­group (B). All the ­patients under­went a clin­i­cal exam­ina­tion includ­ing a ­pain meas­ure­ment and a ultra­sound scan­ning ­before, at the end and ­after one ­month fol­low-up. An addi­tion­al ultra­so­nog­ra­phy was ­made ­after the ­fourth ses­sion to com­pare the ­effect of ­each treat­ment on the ­initial ­course of hae­mat­o­ma res­o­lu­tion.
Results. Both ­groups had a sig­nif­i­cant ­decrease of the ­pain (p< 0.001). The hyper­ther­mia ­group ­showed a sig­nif­i­cant­ly high­er ­effect on VAS ­score and on hae­mat­o­ma res­o­lu­tion ­after two ­weeks of treat­ment.
Conclusions. Even ­with a lim­it­ed num­ber of cas­es our ­results ­show ­that the hyper­ther­mia is a high­ly inno­va­tive, ­safe and reli­able modal­ity for the treat­ment of ­acute ­sport mus­cle inju­ries

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