The Accumulative Effect of Cold Water Immersion in Football Athletes

Not Applicable

Completed

• Conditions: Athletic Performance
• Interventions: Other: cold water immersion; Other: Control group

• Registration Number: NCT02688972
• Lead Sponsor: Scheila Marisa Pinheiro

Brief Summary

Football is a sport with congested calendars, which requires muscle recovery strategies such as cold water immersion (CWI). This recovery technique is well spread through football clubs, although it lacks a profound physiologic investigation to understand its effects on athlete's body. Objectives: The main objective of this study is to evaluate the effect of a long-term CWI exposure in football athlete's.

Study Hypothesis:

H0: The application of Cold water immersion doesn't amend the biomarkers, electromyograph signal, power and perceived of recover when compared with control sample.

H1: The application of Cold water immersion amends the biomarkers, electromyograph signal, power and perceived of recover when compared with control sample.

Detailed Description

In order to answer this question, the investigators performed a randomized clinical trial in 23 sub-20 football athletes. All subjects were randomly divided into two groups; a control group (10 minutes seated rest) and a CWI group (10 minutes in a 10 degree C) during seven days in a row. The investigators evaluated creatine kinase (CK) and lactate dehydrogenase (LDH) as molecular biomarkers for muscle damage. The blood samples were collected on the first, second, ninth and tenth days. Yet, the investigators assessed the peak of muscle activity and isometric strength of the knee flexors and extensors, potency of lower limbs, perceived exertion (PE) and total quality recovery perceived (TQRPer) in order to understand the treatment physiological effect on the subjects on the first and last day of experiments (before and after training).

Study Timeline

• Study Start: 2015-07
• Primary Completion: 2015-07
• Study Completion: 2015-08
• Status Verified: 2016-02
• Study First Submitted: 2016-02-18
• Study First Submitted QC: 2016-02-22
• Last Update Submitted: 2016-02-22
• Study First Posted: 2016-02-23
• Last Update Posted: 2016-02-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 27

Inclusion Criteria

• Healthy subjects
• Soccer players

Exclusion Criteria

• Neurological, vascular or systemic muscle disease

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
cold water immersion	cold water immersion	-
control	Control group	13 volunteers

Primary Outcome Measures

Name	Time	Method
Biochemical Markers: Creatine Kinase	10 days	The creatine kinase was evaluated though blood samples.