Blood Flow Restriction Strength Training in Professional Soccer Players

Effects of Blood Flow Restriction Resistance Training on Muscle Characteristics, Strength and Performance of Professional Soccer Players

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.

Study Overview

• Status: Completed
• Conditions: Blood Pressure; Resistance Training
• Intervention / Treatment: Other: Blood Flow Restriction Strength training with low load; Other: High Load Strength Training

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 Type: Interventional
• Enrollment (Actual): 20
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Spain
  • Balearic Islands
    • Palma De Mallorca, Balearic Islands, Spain, 07122
      • Christian

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years to 40 years (Child, Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

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

Exclusion Criteria:

• Amateurs players

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Strength training based on low loads with blood flow restriction (Experimental group I); Squat; Single Deadlift; Back Squat	Other: Blood Flow Restriction Strength training with low load; Low Load (20-50% 1RM), 4 set of 30/15/15/15 repetitions, 30 seconds resting between sets.
Experimental: Strenght training based on high loads (Experimental group II); Squat; Single Deadlift; Back Squat	Other: High Load Strength Training; High Load (60-80% 1RM) 4 sets of 8 repetitions, 2 minutes resting between sets

What is the study measuring?

Primary Outcome Measures

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

Collaborators and Investigators

• Sponsor: University of the Balearic Islands
• Investigators: Principal Investigator: Christian Castilla López, University of Balearic Islands; Study Director: Natalia Romero Franco, University of Balearic Islands

Study record dates

Study Major Dates

• Study Start (Actual): October 5, 2020
• Primary Completion (Actual): November 30, 2020
• Study Completion (Actual): November 30, 2020

Study Registration Dates

• First Submitted: October 28, 2020
• First Submitted That Met QC Criteria: November 13, 2020
• First Posted (Actual): November 16, 2020

Study Record Updates

• Last Update Posted (Estimated): June 2, 2023
• Last Update Submitted That Met QC Criteria: May 31, 2023
• Last Verified: May 1, 2023

More Information

Terms related to this study

• Keywords: Soccer; Performance; Strenght Training; Blood Flood Restriction; Sport Injuries
• Other Study ID Numbers: 160CER20

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No