Blood Flow Restriction Strength Training in Professional Soccer Players

• Sponsor: University of the Balearic Islands (Other)
• Overall Status: Completed
• CT.gov ID: NCT04630951
• Collaborator: (none)
• Enrollment: 20
• Location: 1
• Arms: 2
• Actual Duration (Months): 1.8
• Patients Per Site Per Month: 11.3

Study Details

Study Description

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.

Condition or Disease	Intervention/Treatment	Phase
Resistance Training; Blood Pressure	Other: Blood Flow Restriction Strength training with low load; Other: High Load Strength Training	N/A

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 Design

• Study Type: Interventional
• Actual Enrollment: 20 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Masking: Single (Participant)
• Primary Purpose: Treatment
• Official Title: Effects of Blood Flow Restriction Resistance Training on Muscle Characteristics, Strength and Performance of Professional Soccer Players
• Actual Study Start Date: Oct 27, 2020
• Actual Primary Completion Date: Nov 9, 2020
• Actual Study Completion Date: Dec 20, 2020

Arms and Interventions

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

Outcome Measures

Primary Outcome Measures

1. Change from Baseline in Muscle Mass [Change from Baseline in Muscle Mass at 6 Weeks]

   Muscle Mass mesured with measuring tape

2. 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)

3. 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)

4. 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)

5. 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

6. Change from Baseline in Sprint Ability [Change from Baseline in Sprint Ability at 6 weeks]

   Sprint Ability measured by MySprint App

7. Change from Post-Intervention in Sport Injuries Incidence [Change from Post-Intervention up to 8 months.]

   Incidence of injuries related to sport practice

Eligibility Criteria

Criteria

• Ages Eligible for Study: 14 Years to 40 Years
• Sexes Eligible for Study: Male
• Accepts Healthy Volunteers: No

Inclusion Criteria:

• No injuries in the last 6 months

• 1 years experience minimun in the division.

Exclusion Criteria:

• Amateurs players

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Christian	Palma De Mallorca	Balearic Islands	Spain	07122

Sponsors and Collaborators

• University of the Balearic Islands

Investigators

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

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

• Responsible Party: University of the Balearic Islands
• ClinicalTrials.gov Identifier: NCT04630951
• Other Study ID Numbers: 160CER20
• First Posted: Nov 16, 2020
• Last Update Posted: Aug 17, 2021
• Last Verified: Aug 1, 2021

• Individual Participant Data (IPD) Sharing Statement: No
• Plan to Share IPD: No
• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No
• Keywords provided by University of the Balearic Islands: Strenght Training; Soccer; Blood Flood Restriction; Performance; Sport Injuries

Study Results

No Results Posted as of Aug 17, 2021