Muscle and tendon heating rates with therapeutic ultrasound in horses.
Vet Surg
; 42(3): 243-9, 2013 Apr.
Article
in En
| MEDLINE
| ID: mdl-23373839
ABSTRACT
OBJECTIVE:
To (1) determine the temperature change in equine tendon and muscle during therapeutic ultrasound and (2) develop guidelines for treating horses for muscular or tendinous injury using therapeutic ultrasound. STUDYDESIGN:
Experimental, in vivo study. ANIMALS Adult horses (n = 10).METHODS:
Thermistors were inserted in the superficial and deep digital flexor tendons (SDFT and DDFT) of the thoracic limbs of 10 adult horses. On the left, 3.3 MHz therapeutic continuous ultrasound was done for 10 minutes at an intensity of 1.0 W/cm(2) and for the right thoracic limb at 1.5 W/cm(2). Thermistors were placed at 1 cm, 4 cm, and 8 cm depths in the epaxial muscles of the same 10 horses, for a 20-minute treatment at a frequency of 3.3 MHz and intensity of 1.5 W/cm(2). Temperature was recorded before, during, and after treatment. Data were statistically analyzed.RESULTS:
Mean temperature rise was 3.5°C in the SDFT and 2.5°C in the DDFT at the end of the 1.0 W/cm(2) treatment (P = .94) and 5.2°C in the SDFT and 3.0°C in the DDFT at the end of the 1.5-W/cm(2) treatment (P = .48). Mean temperature rise in epaxial musculature was 1.3°C at a depth of 1.0 cm, 0.7°C at 4.0 cm, and 0.7°C at 8 cm.CONCLUSIONS:
The SDFT and DDFT are heated to a therapeutic temperature using a frequency of 3.3 MHz and intensity of 1.0 W/cm(2). The epaxial muscles are not heated to a therapeutic temperature using a frequency of 3.3 MHz and an intensity of 1.5 W/cm(2).
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tendon Injuries
/
Tendons
/
Ultrasonic Therapy
/
Body Temperature
/
Muscle, Skeletal
Type of study:
Diagnostic_studies
/
Guideline
Limits:
Animals
Language:
En
Journal:
Vet Surg
Year:
2013
Type:
Article
Affiliation country:
United States