Cold Water Immersion in the Recovery of Markers of Muscle Damage of 10km Street Runners

Study Overview
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Brief Summary
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Objective: To analyze the effect of cold water immersion (CWI) on the recovery of clinical, biochemical, functional and neuromuscular markers of muscle damage in 10 km street runners. Materials and Methods: This is a randomized, blinded trial in which 30 subjects, 10 km street runners, were randomly divided into three groups: control (gC), immersion (gI) and CWI (gCWI). The runners will be evaluated for clinical (subjective perception of exertion), biochemical (serum CK), functional (unipodal triple hop distance and shuttle test time) and neuromuscular variables by means of isokinetic variables (peak torque, total work and fatigue index). Volunteers will perform pre-assessment, immediately post-race and post-intervention, and 24-hour post-intervention. The data will be expressed by mean and standard deviation, analyzed in the statistical package SPSS 20.0. A significance level of 5% and a 95% confidence interval will be considered for all measures.

Official Title
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Cold Water Immersion in the Recovery of Clinical, Biochemical, Functional and Neuromuscular Markers of Muscle Damage of 10km Street Runners: Clinical, Randomized and Blinded Trial

Conditions
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Health Behavior

Intervention / Treatment
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* Other: Cold water immersion
* Other: Water immersion


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Body Mass Index between 18.5 and 30 kg/m2; Street runners for at least 6 months; Week frequency of at least 3 times; Do not present cardiopathies, muscles and neurological diseases; Exclusion Criteria: Hypersensitivity or allergies to cryotherapy; Unable to complete the 10 km event on the day of the evaluation; Do not complete or perform any of the study procedures for any reason (phobias, do not withstand the exposure time).

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Male

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: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Control group<br> | |
| Experimental: Immersion group<br>They will be immersed in a barrel of 200 liters of water (without ice) at room temperature, according to local conditions of temperature and humidity (Natal county - RN). They will be immersed to the height of the iliac crests for 10 minutes. | Other: Water immersion<br> <br> |
| Experimental: Cold water immersion group<br>They will be immersed in a barrel of 200 liters of ice water at an average temperature of 10 ° C for 10 minutes. They will be immersed to the height of the iliac crests. | Other: Cold water immersion<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Subjective perception of pain. | The subjective perception of pain will be measured by means of the visual analogic scale based on the self-report of the level of pain. | Up to 10 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Physical activity, Muscle pain, Cryotherapy