Synergic Effects of Ultrasound and Laser on the Pain Relief and Functionality

University of Sao Paulo90 enrolled

Overview

There are several therapeutic effects of the ultrasound (US) or low level laser therapy (LLLT), including pain relief, increase of microcirculation, modulation of inflammatory response and accelerated tissue repair. The investigators hypothesis was that a combination of US, LLLT and therapeutic exercise may maximize clinical outcome.

Patients with pain, especially chronic pain, avoid movements. This is turn results in a gradual impairment of their physical condition, reducing, for example, strength, flexibility, physical functionality and occupational activity. To performed physical treatments, a prototype device was development. The device includes four diode laser beams (808 nm) around of the one ultrasound transducer.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Osteoarthritis

Interventions

Ultrasound plus Laser and therapeutic exerciseDEVICE

Ultrasound with frequency 1 Mhz and infrared laser with output power at 100 mW. The resistance training was performed.The treatments are done once a week, for 3 months.

Ultrasound plus LaserDEVICE

Ultrasound with frequency 1 Mhz and infrared laser with output power at 100 mW. The treatments are done once a week, for 3 months.

Utrasound plus Laser PlaceboDEVICE

The device with Ultrasound and infrared laser without emitting electromagnetic or mechanical waves was applied (null dose).

Eligibility

Sex: FEMALEMin age: 60 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Caucasian women * Aged between 60 and 80 years * Hand osteoarthritis * Knee osteoarthritis Exclusion Criteria: * Psychiatric disorder, * Neurological disease * Metabolic disease * Pulmonary disease * Cardiac disease, * Thrombosis * Cancer.

Locations (1)

Alessandra Rossi Paolillo

São Carlos, São Paulo, Brazil

Outcomes

Primary Outcomes

Analysis of pain for hands and knees

Pressure pain thresholds by algometry (N)

Time frame: 3 months

Secondary Outcomes

Subjective pain scale for hands and knees

Pain intensity by visual analog scale (VAS)

Time frame: 3 months

Jebsen-Taylor Hand Function Test

The time (s) to perform different activities is registered

Time frame: 3 months

Box and block Hand Function Test

The number of wooden blocks that can be transported from one compartement of a box to another within 1 min is counted

Time frame: 3 months

Toe-Touching Function Test

The distance (cm) from the finger of hand to finger of foot is registered

Time frame: 3 months

Sit-to-Stand Function Test

The number of sit-to-stand within 1 min is counted

Time frame: 3 months

Gait Function Test

The time (s) to perform 10 meters walked is registered

Time frame: 3 months

Balance Function Test

The time (s) to perform static and dynamic balance is registered

Time frame: 3 months

Dynamometry

Strength (N)

Data from ClinicalTrials.gov

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