Effect of Phototherapy Incorporated Into an Exercise Program on Osteoarthritis of the Knee

Study Overview
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Brief Summary
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The aim of the proposed study is to analyze the effect of the incorporation of phototherapy into a therapeutic exercise program on pain, functional capacity, range of motion, muscle strength in individuals with osteoarthritis of the knees. The participants will be allocated to different groups through a randomization process using opaque envelopes containing cards stipulating one of the three following groups: Group A (exercise protocol); Group B (exercise protocol + phototherapy protocol); and Group C (exercise protocol + placebo phototherapy protocol). Phototherapy will be performed on the knees diagnosed with osteoarthritis.

Official Title
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Effect of Phototherapy Incorporated Into an Exercise Program on Osteoarthritis of the Knee

Conditions
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Osteoarthritis of the Knee

Intervention / Treatment
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* Other: exercise
* Other: Phototherapy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of osteoarthritis of the knee (unilateral) according to criteria of the American College of Rheumatology age between 40 and 80 years either gender knee pain and functional disability for at least six months confirmed by historical medical. Exclusion Criteria: Dementia neurological disorder (sensory or motor) cancer diabetes acute adverse health condition symptoms of osteoarthritis of the hip cardiopulmonary disease that impedes walking need for wheelchair or gait-assistance device and having received steroids through intra-articular injection or orally in the previous six months

Ages Eligible for Study
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Minimum Age: 40 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: exercise group<br>An exercise program will be performed to increase range of motion, improve motor learning and strengthen the muscles of the lower limb. The program will include exercises 2 times a week for four weeks. The first week the exercises will be performed with 2 sets of 15 repetitions and the remaining weeks 3 sets of 15 repetitions for each exercise. To exercise will be performed with the resistance of cinnamon, It will be recommended weight by 70% of one repetition maximum painless assigned individually per patient. | Other: exercise<br> <br> |
| Experimental: phototherapy group<br>And, Phototherapy will be administered with a portable nine-diode cluster. The portable nine-diode cluster will be used overlapping three quadrants of the knee in random sequence: medial quadrant, lateral quadrant and posterior quadrant.with one 905-nm diode (mean power: 1 milliwatt ; peak power: 10 megawatt; spot size: 0.44 cm2), four 875-nm diodes (mean power of each diode: 17.5 milliwatt; spot size: 1 cm2) and four 670-nm diodes (mean power of each diode: 15 mW; spot size: 1 cm2); frequency: 1000 Hz; 300-second irradiation time in each quadrant; total energy: 39.3 Joules per quadrant. Phototherapy will be included in the exercises group. | Other: exercise<br> <br> Other: Phototherapy<br> <br> |
| Placebo Comparator: Phototherapy placebo<br>Phototherapy will be administered with a portable nine-diode cluster. The portable nine-diode cluster will be used overlapping three quadrants of the knee in random sequence: medial quadrant, lateral quadrant and posterior quadrant), with one 905-nm diode (mean power: 0 milliwatt; peak power: 0 watt; spot size: 0.44 cm2), four 875-nm diodes (mean power of each diode: 0 milliwatt; spot size: 1 cm2) and four 670-nm diodes (mean power of each diode: 0 milliwatt; spot size: 1 cm2); frequency: 0 Hz; 300-second irradiation time in each quadrant; total energy: 0 Joules per quadrant. Phototherapy will be included in the exercises group. | Other: exercise<br> <br> Other: Phototherapy<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| physical function | Using the Western Ontario and McMaster Universities Arthritis Index | 9 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum voluntary isometric contraction | A portable dynamometer will be used to assess muscle contraction. | 9 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Physical Therapy Modalities, osteoarthritis