NCT Number: NCT06105697
The aim is to evaluate the effects of aerobic blood flow restriction on academy football players. Randomized clinical trial, with two intervention groups: Experimental group I will carry out training based on running on the treadmill using blood flow restriction (BFR) on match days 4 and 3 pre-competition (MD-4, MD-3). On the other hand, the Experimental II group will perform the same training without the use of BFR for 6 weeks. The study will be carried out during the 2023-2024 season in the National and Youth Honor Divisions of Spanish soccer, with soccer teams from Mallorca Island. Before and after 6 weeks of intervention, the countermovement jump (CMJ), maximum aerobic speed (MAS), VO2max, and repeat sprint ability will be evaluated. The levels of muscle soreness (DOMS) will be evaluated at MD-4, MD-3, and MD-2. The same procedure will be carried out to evaluate muscle fatigue, sleep quality, and stress through a questionnaire. Sociodemographic and anthropometric data will be collected before starting the study. In addition, the rate of exertion perceived will be evaluated at MD-4, MD-3, and MD-2.
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Notify Me15 year–25 year
Male
Interventional
Not applicable
Christian, Palma de Mallorca, Balearic Islands, Spain
The warm-up will consist of federation Internationale football association (FIFA) 11+. In addition, the warm-up will contain a familiarization with the jump test.
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
-
Exclusion criteria
Soccer players included in experimental group I will carry out this program for 6 weeks, setting the blood pressure to ~ 60% of limb occlusion pressure (AOP). They will run for 4 sets of 5 minutes, separated by 1 minute of rest, at 50-60% of their maximum Aerobic Speed.
Soccer players included in experimental group II will carry out the program for 6 weeks without occlude the blood pressure. They will run for 4 sets of 5 minutes, separated by 1 minute of rest, at 50-60% of their maximum Aerobic Speed.
Time frame: Change from Baseline in countermovement Jump (CMJ Test) at 6 weeks
CMJ Test measured by Force Platform (Vald Performance, Brisbane, Australia)
Time frame: Change from Baseline in Maximum Aerobic Speed at 6 Weeks
Maximum Aerobic Speed (MAS) measured by the Treadmill Incremental test
Time frame: Change from Baseline in Repeat Sprint Ability at 6 Weeks
Repeat Sprint Ability measured by the Bangsbo Test
Time frame: Change from Baseline in Yoyo Intermittent Recovery Level 1 at 6 Weeks
Vo2max Indirect measured by the Yoyo Intermittent Recovery Test Level I
Time frame: Change from Baseline in RPE at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
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)
Time frame: Change from Baseline in Fatigue at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
Fatigue measured by a Wellness Questionary (1= Always tired; 2=More tired than normal; 3=Normal; 4= Fresh; 5= Very fresh)
Time frame: Change from Baseline in Muscle Soreness at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
Muscle Soreness measured by a Wellness Questionary (1=Very sore; 2= Increase in soreness/ tightness; 3=Normal; 4=Feeling good; 5=Feeling great)
Time frame: Change from Baseline in Sleep Quality at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
Sleep Quality measured by a Wellness Questionary (1=Insomnia; 2=Restless sleep; 3=Difficulty falling asleep; 4=good; 5=Very restful)
Time frame: Change from Baseline in Stress at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
Stress measured by a Wellness Questionary (1=Highly stressed; 2=Feeling stressed; 3=Normal; 4=Relaxed; 5=Very relaxed)
Time frame: Change from Baseline in Stress at Match Day -4 (MD-4), MD-3, MD-2 during the 6 Weeks´ Intervention
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)
University of the Balearic Islands
Other
Effect of Aerobic Blood Flow Restriction Training in Academy Football Players: A Randomised Controlled Trial
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