Clinical trial NCT01872117: Assessment of Temperature by Infrared Thermography and Blood Conduction Velocity by Doppler After Applying Shortwave Diathermy and Microwave - Correlations With Cardiovascular and Hemodynamic Parameters
Official title: Assessment of Temperature by Infrared Thermography and Blood Conduction Velocity by Doppler After Applying Shortwave Diathermy and Microwave - Correlations With Cardiovascular and Hemodynamic Parameters
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Healthy Individuals
Lead sponsor: University of Sao Paulo
Sponsor class: OTHER
First posted: 2013-06-07
Enrollment: 40
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 30
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: OTHER

Brief summary: The deep heat therapies are increasingly frequent in daily physical therapist for the treatment of musculoskeletal diseases. The use of such procedures is justified by their analgesic, anti-inflammatory, antiespasmolíticos and hiperemiantes. However, studies on the cardiovascular effects of these therapies are still incipient. Therefore, this study has as objectives: map the skin temperature changes in the lower limbs in different areas and positions after applying shortwave diathermy and microwave; assess hemodynamic and autonomic cardiovascular parameters, and investigate the occurrence of changes in conduction velocity superficial blood resulting from the application of these thermal features. The study will be conducted on 40 female volunteers between 18 and 30 years, university, healthy, that fit the inclusion and exclusion criteria of the study. The analysis by infrared thermography will be held in a room with temperature maintained at 23 ± 1°C and humidity average 50%. The volunteers will stay in prone position, with the legs bare, resting for 20 min to stabilize skin temperature with temperature of the room. After this period will be held applying diathermy of shortwave or microwave for 20 minutes at moderate heat on the lower limb regions of the hamstrings and triceps surae in extension and flexion to 180° to 90°. The records beat to beat blood pressure and heart rate to autonomic and cardiovascular hemodynamic evaluation will be performed by means of equipment Finometer (Finapress Medical Systems, Inc.) and electrocardiogram (ADInstruments, Inc.), respectively, before and after application of diathermy. On the other hand, the images will be processed using FLIR ThermoScan and blood flow data will be collected through the Doppler ultrasound. The results will be processed and analyzed using descriptive statistics, submitted to a linear regression model with mixed effects (random effects and fixed), with p≤0.05.


Eligibility criteria: Inclusion Criteria:

* Age group aged between 18 and 30 years
* No previous disease-order circulatory or nervous and did not have metal implants in areas to be studied,
* Are not menstruating or even a week before, due to the change of blood flow in these periods

Exclusion Criteria:

* Individuals who are using antipyretic medications
* With a history of pain, injury or surgery on joints studied

Primary outcomes:
measure: Cutaneous temperature changes after short wave diathermy and microwave
timeFrame: 2 years
Secondary outcomes:
measure: Change in conduction velocity blood
timeFrame: 2 years
Other outcomes:
Locations:
city: Ribeirao Preto
country: Brazil
facility: University of Sao Paulo
state: Sao Paulo
Study officials:
References: