Assessment of Temperature by Infrared Thermography and Blood Conduction Velocity by Doppler After Applying Shortwave Diathermy and Microwave - Correlations With Cardiovascular and Hemodynamic Parameters

NCT ID: NCT01872117

Last Updated: 2017-07-21

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2013-05-31
• Study Completion Date: 2015-05-31

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.

Conditions

Healthy Individuals

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: OTHER
• Blinding Strategy: TRIPLE

Study Groups

Applications of shortwave diathermy

Group Type: EXPERIMENTAL

Shortwave therapy

Intervention Type: OTHER

Will be conducted in four stages, on different days: i) lower limb in extension and application of 180° for 20 min, ii) Lower limb knee flexion of 90° and application for 20 min; iii) lower limb extension in 180° without application iv) lower limb knee flexion of 90° without application.

Applications of microwave diathermy

Group Type: EXPERIMENTAL

Microwave therapy

Intervention Type: OTHER

Will be held in two stages, on different days: i) lower limb in extension with angle of 180° and application for 20 min, ii) lower limb in extension of 180° without application.

Interventions

Shortwave therapy

Will be conducted in four stages, on different days: i) lower limb in extension and application of 180° for 20 min, ii) Lower limb knee flexion of 90° and application for 20 min; iii) lower limb extension in 180° without application iv) lower limb knee flexion of 90° without application.

Intervention Type: OTHER

Microwave therapy

Will be held in two stages, on different days: i) lower limb in extension with angle of 180° and application for 20 min, ii) lower limb in extension of 180° without application.

Intervention Type: OTHER

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

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: Yes

Sponsors

University of Sao Paulo

OTHER

Sponsor Role: lead

Responsible Party

Rinaldo Roberto de Jesus Guirro

ph.D Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

University of Sao Paulo

Ribeirão Preto, São Paulo, Brazil

Countries

Brazil

Other Identifiers

U1111-1143-3596

Identifier Type: -

Identifier Source: org_study_id