Post-exercise Recovery of DOMS in Recreational Athletes

Study Overview
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Brief Summary
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The main goal of this study was to investigate the effectiveness of cryo-sauna in preventing the development of DOMS in the lower extremity. The second goal is to analyze the rate of regenerative changes in the right muscles after acute fatigue-induced exercises.

Detailed Description
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The main goal of this study was to investigate the effectiveness of cryo-sauna in preventing the development of DOMS in the lower extremity. The second goal is to analyze the rate of regenerative changes in the right muscles after acute fatigue-induced exercises. This study design was a randomized, controlled single-blind trial with repeated measures. Moreover, the design was prepared according to the Consolidated Standards of Reporting Trials (CONSORT) for pragmatic trials. Participants were assigned into two groups: (1) experimental group (CRYO, n =16) - cryostimulation using a cryo sauna; and (2) control group (CONT, n = 15) - without any intervention. This study was conducted in the Physical Exercise Laboratory. Both groups, CRYO and CON performed a fatigue-induced protocol consisting of counter-movement jumps (CMJ) (10 set for 10 repetitions). After the fatigue exercises, only CRYO underwent cryo sauna intervention including entry immediately after, 24, 48, and 72 hours post-exercise. The order of measurements at baseline included: blood sample testing (creatine kinase, myoglobin, leukocytes) and muscle stiffness of the lower extremity. All measurements we collected at baseline, immediately post, 24, 48, 72, and 96 hours post-exercise.

Official Title
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Cryosauna for Post-exercise Recovery of Delayed Onset Muscle Soreness (DOMS) in Recreational Athletes: a Randomized Control Trial

Conditions
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Injury;Sports

Intervention / Treatment
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* Other: Cryosauna


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: no previous experience with cryostimulation using a cryo-sauna, recreational lifestyle. Exclusion Criteria: Current or prior pain or injury in the lower extremity. Previous history of surgery in the lower extremity. Cardiovascular disabilities.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 26 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: Screening
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Randomized controlled trial
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Experimental group<br>Cryo-stimulation using cryosauna after fatigue-induced exercise. | Other: Cryosauna<br>* The intervention was Cryosauna - cryostimulation at -110°C for 1.5 minutes, for four consecutive days.<br>|
| No Intervention: Control group<br>Without any intervention after fatigue-induced exercise. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Measurement of muscle stiffness in the lower extremity. | Stiffness [N/m] was measured on: the anterior thigh, posterior thigh, shin, and calf muscles in 23 reference points. | Change from baseline muscle stiffness at 96 hours after fatigue-induced exercise. | 
| Measurement of blood markers. | Leukocytes [10^9 /L] concentration. | Change from baseline leukocytes concentration at 96 hours after fatigue-induced exercise. | 
| Measurement of blood markers. | Creatine kinase [ng/mL] concentration. | Change from baseline creatine kinase concentration at 96 hours after fatigue-induced exercise. | 
| Measurement of blood markers. | Myoglobin [ng/mL] concentration. | Change from baseline myoglobin concentration at 96 hours after fatigue-induced exercise. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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DOMS, injury prevention, performance, muscle properties