Blood Flow Restriction and Recovery in Soccer Players

Not Applicable

Completed

• Conditions: Resistance Training; Recovery
• Interventions: Other: Active recovery; Device: Blood flow restriction recovery

• Registration Number: NCT05097027
• Lead Sponsor: University of the Balearic Islands

Brief Summary

The objective is to evaluate the effects of blood flow restriction training on the post-competition recovery of professional and semi-professional soccer players. Randomized crossover clinical trial, with two intervention groups: Experimental group I will carry out a recovery training based on the use of the blood flow restriction (BFR) on day 1 post-competition. On the other hand, the Experimental II group will perform the same recovery training without the use of BFR. After 1 month the groups will cross their intervention and make the recovery with the opposite method to the initial one. The study will be carried out during the 2021-2022 season, from first regional to third division of Spanish soccer, with soccer teams from the Mallorca Island. Before the competition, the countermovement jump (CMJ) will be evaluated and repeated at 0, 24, and 72 h after the competition. The levels of muscle soreness (DOMS) will be evaluated pre-post-competition 0, 24, 48 and 72h later. The same procedure will be carried out to evaluate muscle fatigue, sleep quality, and stress through a questionnaire that athletes will fill out pre, 0, 24, 48 and 72h after the game. Sociodemographic and anthropometric data will be collected before starting the study.

Detailed Description

W-UP:

The warm-up will consist of 5 minutes running slow, 5 minutes mobility, and 5 minutes of running exercises. In addition, the warm-up will contain a familiarization with the jump test.

Study Timeline

• Study First Submitted: 2021-10-05
• Study First Submitted QC: 2021-10-25
• Study First Posted: 2021-10-27
• Study Start: 2021-11-01
• Primary Completion: 2021-11-30
• Study Completion: 2022-06-01
• Status Verified: 2023-03
• Last Update Submitted: 2023-03-30
• Last Update Posted: 2023-04-03

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 40

Inclusion Criteria

• 50 Minutes or more playing during the last match.

Exclusion Criteria

• No injuries players.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Non-Blood flow restriction recovery (Experimental II)	Active recovery	Active recovery program without blood flow restriction using a periodization methodology in soccer. (Post-match +1 training).
Blood flow restriction recovery (Experimental I)	Blood flow restriction recovery	Active recovery program with blood flow restriction using a periodization methodology in soccer. (Post-match +1 training).

Primary Outcome Measures

Name	Time	Method
Change from Baseline in Countermovement Jump (CMJ)	Change from Baseline in countermovement Jump (CMJ Test) at 0 hours, 24 hours, 72 hours and 4 weeks	CMJ Test measured by Force Platform (Vald Performance, Brisbane, QLD)

Secondary Outcome Measures

Name	Time	Method
Change from Baseline in Sleep Quality	Change from Baseline in Sleep Quality at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Sleep Quality measured by a Wellness Questionary (1=Insomnia; 2=Restless sleep; 3=Difficulty falling asleep; 4=good; 5=Very restful)
Change from Baseline in Fatigue	Change from Baseline in Fatigue at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Fatigue measured by a Wellness Questionary (1= Always tired; 2=More tired than normal; 3=Normal; 4= Fresh; 5= Very fresh)
Change from Baseline in Muscle Soreness	Change from Baseline in Muscle Soreness at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Muscle Soreness measured by a Wellness Questionary (1=Very sore; 2= Increase in soreness/ tightness; 3=Normal; 4=Feeling good; 5=Feeling great)
Change from Baseline in Stress	Change from Baseline in Stress at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Stress measured by a Wellness Questionary (1=Highly stressed; 2=Feeling stressed; 3=Normal; 4=Relaxed; 5=Very relaxed)
Change from Baseline in Mood	Change from Baseline in Stress at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Mood measured by a Wellness Questionary (1=Highly annoyed / irritable / down; 2=Snappy with team-mates, family and friends; 3=Less interested in others / activities; 4=Generally good mood; 5=Very positive mood)
Change from Baseline in Rating of Perceived Exertion (RPE)	Change from Baseline in RPE at 0 hours, 24 hours, 48 hours, 72 hours and 4 weeks	Rating of Perceived Exertion (RPE) measured by Borg scale (0=Rest; 1=Really easy; 2=easy; 3=moderate; 4=sort of hard; 5=hard; 6=hard; 7=Really hard; 8= Really hard; 9= Really, really, hard; 10= Maximal)

Trial Locations

Locations (1)

Christian; 🇪🇸 Palma De Mallorca, Balearic Islands, Spain