NCT04630951

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 5, 2020

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

October 28, 2020

Completed
19 days until next milestone

First Posted

Study publicly available on registry

November 16, 2020

Completed
14 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2020

Completed
Last Updated

June 2, 2023

Status Verified

May 1, 2023

Enrollment Period

2 months

First QC Date

October 28, 2020

Last Update Submit

May 31, 2023

Conditions

Keywords

Strenght TrainingSoccerBlood Flood RestrictionPerformanceSport Injuries

Outcome Measures

Primary Outcomes (7)

  • 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.

Study Arms (2)

Strength training based on low loads with blood flow restriction (Experimental group I)

EXPERIMENTAL

1. Squat 2. Single Deadlift 3. Back Squat

Other: Blood Flow Restriction Strength training with low load

Strenght training based on high loads (Experimental group II)

EXPERIMENTAL

1. Squat 2. Single Deadlift 3. Back Squat

Other: High Load Strength Training

Interventions

Low Load (20-50% 1RM), 4 set of 30/15/15/15 repetitions, 30 seconds resting between sets.

Strength training based on low loads with blood flow restriction (Experimental group I)

High Load (60-80% 1RM) 4 sets of 8 repetitions, 2 minutes resting between sets

Strenght training based on high loads (Experimental group II)

Eligibility Criteria

Age14 Years - 40 Years
Sexmale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

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

You may not qualify if:

  • Amateurs players

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Christian

Palma de Mallorca, Balearic Islands, 07122, Spain

Location

Study Officials

  • Natalia Romero Franco

    University of Balearic Islands

    STUDY DIRECTOR
  • Christian Castilla López

    University of Balearic Islands

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 28, 2020

First Posted

November 16, 2020

Study Start

October 5, 2020

Primary Completion

November 30, 2020

Study Completion

November 30, 2020

Last Updated

June 2, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Locations