Effect of NMES+ on Hamstring Lesion (3a/3b)

Study Overview
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Brief Summary
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The goal of this clinical trial is to analyze the effect of the electrical stimulation superimposed onto movement in healthy semi-professional athletes who sustained a type 3a/3b hamstring strain injury. The main questions it aims to answer are: Is NMES+ useful for the treatment of type 3a/3b hamstring strain injury? Does NMES+ improve the quality of the injured muscle tissue? Participants will follow a 3 week protocol, following the latest evidence available.[describe the main tasks participants will be asked to do, treatments they'll be given and use bullets if it is more than 2 items]. If there is a comparison group: Researchers will compare [insert groups] to see if [insert effects].

Official Title
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Is Early Superimposed Neuromuscular Electrical Stimulation (NMES+) Useful to Improve Muscle Tissue Recovery From Type 3a/3b Hamstring Strain Injuries (HSI)?

Conditions
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Hamstring Injury, Muscle Rupture, Hamstring Sprain

Intervention / Treatment
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* Device: NMES+
* Procedure: Rehab


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: recreational or semi-professional athletes Body Mass Index between 18,5 e 24,9 Hamstring strain lesion type 3a/3b Exclusion Criteria: previous hamstring strain lesions Anterior Cruciate Ligament Reconstruction using Hamstring graft Current hamstring strains

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

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: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Treatment Group<br>The Treatment Group will follow the rehabilitation protocol with the addition of the Neuromuscular Electrical Stimulation Superimposed onto Movement (NMES+) as part of the rehabilitation protocol. 1st/2nd Week at 35 Hertz. 3rd/4th Week 50 Hertz. 5th/6th Week 70 Hertz | Device: NMES+<br>* The Treatment Group will follow the rehabilitation protocol with the addition of the NMES+. 1st/2nd Week at 35 Hertz. 3rd/4th Week 50 Hertz. 5th/6th Week 70 Hertz.<br>Procedure: Rehab<br>* The Control Group will follow a protocol based on the latest available guidelines for the rehabilitation of the hamstrings lesions. A weight-bearing protocol with a week by week progression on load, repetitions and sets.<br>|
| Active Comparator: Control Group<br>The Control Group will follow the same rehabilitation protocol with no addition of the NMES+. A weight-bearing protocol with a week by week progression on load, repetitions and sets. | Procedure: Rehab<br>* The Control Group will follow a protocol based on the latest available guidelines for the rehabilitation of the hamstrings lesions. A weight-bearing protocol with a week by week progression on load, repetitions and sets.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tear monitoring and muscle quality | Healing status of the muscle tear (mm/cm), using ultrasounds | Baseline | 
| Tear Monitoring | Healing status of the muscle tear (mm/cm), using ultrasounds | Up to 6 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Electrical Muscle Stimulation (EMS), NMES+, Hamstring strain injury, Neuromuscular Electrical Stimulation (NMES)