Blood Flow Restriction Strength Training in Professional Soccer Players

Not Applicable

Completed

• Conditions: Resistance Training; Blood Pressure
• Interventions: Other: High Load Strength Training; Other: Blood Flow Restriction Strength training with low load

• Registration Number: NCT04630951
• Lead Sponsor: University of the Balearic Islands

Brief Summary

The aims of this clinical study are evaluated the effects of Blood Flood Restriction training on the sport performance of professional and semi-professional soccer players. The participants are twenty male professional and semi-professional soccer players who are playing at RCD Mallorca. Participants will be assigned in two different groups. Both groups develop for six weeks a strength training programs. The first group will base their training in Low Load using Blood Flow Restriction (20-50% of one maximum repetition). The second group will base their training in High Load (60-80% of one maximum repetition). This training program includes three type of exercises in each training session; back squat, single deadlift and barbell hip thrust. Before and after this program the investigators will collect sociodemographic and anthropometrics data. On top of that, the investigators will evaluate the muscle mass, the electrical activity produced by skeletal muscles, the muscle strength and the sprint ability of every participant. Before to the evaluation, the soccer players will warm-up during 15 minutes under the control of the evaluators.

Detailed Description

PARTICIPANTS:

Participants are soccer players of RCD Mallorca (Second Spanish Football Division) and RCD Mallorca B (Third Spanish Football Division).Before to start the study, every participant will receive an informed consent about the clinical study. This informed consent will be signed by them according to Declaration of Helsinki. At the same time, the data will be anonymized and only the main researcher of the study will have access to it, to ensure compliance with the Data Protection Law.

W-UP:

The warm-up will consist of 5 minutes running slow (treadmill), 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 Start: 2020-10-05
• Study First Submitted: 2020-10-28
• Study First Submitted QC: 2020-11-13
• Study First Posted: 2020-11-16
• Primary Completion: 2020-11-30
• Study Completion: 2020-11-30
• Status Verified: 2023-05
• Last Update Submitted: 2023-05-31
• Last Update Posted: 2023-06-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 20

Inclusion Criteria

• No injuries in the last 6 months
• 1 years experience minimun in the division.

Exclusion Criteria

• Amateurs players

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Strenght training based on high loads (Experimental group II)	High Load Strength Training	1. Squat 2. Single Deadlift 3. Back Squat
Strength training based on low loads with blood flow restriction (Experimental group I)	Blood Flow Restriction Strength training with low load	1. Squat 2. Single Deadlift 3. Back Squat

Primary Outcome Measures

Name	Time	Method
Change from in Force-Velocity Profile (F-V)	Change from Baseline in Force-Velocity Profile at 6 Weeks	F-V Profile measured by MyJump App
Change from Baseline in Electrical Muscle Activity	Change from Baseline in Electrical Muscle Activity at 6 weeks	Electrical Muscle Activity mesured by Surface Electromyography (mDurance®, España)
Change from Baseline in Countermovement Jump (CMJ)	Change from Baseline in countermovement Jump (CMJ Test) at 6 weeks	CMJ Test measured by Force Platform (Vald Performance, Brisbane, QLD)
Change from Baseline in Sprint Ability	Change from Baseline in Sprint Ability at 6 weeks	Sprint Ability measured by MySprint App
Change from Post-Intervention in Sport Injuries Incidence	Change from Post-Intervention up to 8 months.	Incidence of injuries related to sport practice
Change from Baseline in Muscle Mass	Change from Baseline in Muscle Mass at 6 Weeks	Muscle Mass mesured with measuring tape
Change from Baseline in Maximum Voluntary Isometric Contraction (MVIC)	Change from Baseline in Maximum voluntary Isometric Contraction at 6 Weeks	MVIC mesured by Force Platform (Vald Performance, Brisbane, QLD)

Trial Locations

Locations (1)

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