Effectiveness of Laser Therapy on Proximal Hamstring Tendinopathy

Study Overview
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Brief Summary
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Proximal hamstring tendinopathy (PHT) is tendinopathy of the semimembranosus and/or biceps femoris/semitendinosus complex. Previous studies have shown the efficacy of laser therapy in the treatment of tendinopathy. To the best of the investigator's knowledge, no study has compared the effects of high-power LASER therapy with conventional physiotherapy programs in proximal hamstring tendinopathy patients. Therefore, this study aimed to assess the effects of high-power laser therapy on pain and muscle power in proximal hamstring tendinopathy patients.

Detailed Description
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2 arms comparative pretest-posttest experimental research design with random allocation of subjects into groups (experimental and control group) using the lottery method. A total of thirty-six participants aged between 18-35 (mean age) years, were recruited in the present study. The selected participants were randomly allocated into experimental and control groups using the lottery method and website randomization.com with eighteen participants in each group. The participants and outcome assessor were kept blinded to the allocation. In the experimental group, the high-power laser was given whereas in the control group conventional physiotherapy treatment was given for 4 weeks. Conventional physiotherapy treatment included the US, moist heat pack, and home exercises. Home exercises include nordic hamstring exercises - 2 sets of 5 repetitions, 3 days/week for 3 weeks.

Official Title
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Effectiveness of High Power Laser Therapy on Pain and Isokinetic Power in Athletes With Proximal Hamstring Tendinopathy: a Randomized Controlled Trial

Conditions
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Tendinopathy, Lasers

Intervention / Treatment
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* Radiation: Laser Therapy
* Other: Ultrasound + Moist Heat pack + Exercises


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Athletes pain located deep in the buttock/posterior thigh region tenderness of ischial tuberosity hamstring muscle tightness. Exclusion Criteria: Recent trauma to the posterior thigh Musculoskeletal disorder of ipsilateral lower extremity taking pain medication daily hypertension, malignancy, autoimmune disease, phlebitis, blood disorder.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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Male

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
Interventional Model Description: Two-arm parallel-groups
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Experimental Group<br>High Power laser therapy was provided. | Radiation: Laser Therapy<br>* Therapeutic laser therapy was applied.<br>|
| Active Comparator: Control Group<br>Conventional physiotherapy was applied including moist heat packs, US, and eccentric hamstring exercises. | Other: Ultrasound + Moist Heat pack + Exercises<br>* Ultrasound therapy, a moist heat pack, and a home exercise program were given.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Numerical Pain Rating Scale | On a scale of 0-10, patients rate their current pain level. Higher scores mean worse outcome. | 3 weeks. | 
| Isokinetic peak torque | Isokinetic muscle power was measured. | 3 weeks. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Proximal hamstring tendinopathy, laser therapy, Pain, Muscle power