Clinical trial NCT04630951: Blood Flow Restriction Strength Training in Professional Soccer Players
Official title: Effects of Blood Flow Restriction Resistance Training on Muscle Characteristics, Strength and Performance of Professional Soccer Players
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Resistance Training
Blood Pressure
Keywords: Strenght Training
Soccer
Blood Flood Restriction
Performance
Sport Injuries
Lead sponsor: University of the Balearic Islands
Sponsor class: OTHER
First posted: 2020-11-16
Enrollment: 20
Sex: MALE
Minimum age (years): 14
Maximum age (years): 40
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

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

Eligibility criteria: Inclusion Criteria:

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

Exclusion Criteria:

* Amateurs players

Primary outcomes:
measure: Change from Baseline in Muscle Mass
timeFrame: Change from Baseline in Muscle Mass at 6 Weeks
measure: Change from Baseline in Maximum Voluntary Isometric Contraction (MVIC)
timeFrame: Change from Baseline in Maximum voluntary Isometric Contraction at 6 Weeks
measure: Change from Baseline in Electrical Muscle Activity
timeFrame: Change from Baseline in Electrical Muscle Activity at 6 weeks
measure: Change from Baseline in Countermovement Jump (CMJ)
timeFrame: Change from Baseline in countermovement Jump (CMJ Test) at 6 weeks
measure: Change from in Force-Velocity Profile (F-V)
timeFrame: Change from Baseline in Force-Velocity Profile at 6 Weeks
measure: Change from Baseline in Sprint Ability
timeFrame: Change from Baseline in Sprint Ability at 6 weeks
measure: Change from Post-Intervention in Sport Injuries Incidence
timeFrame: Change from Post-Intervention up to 8 months.
Secondary outcomes:
Other outcomes:
Locations:
city: Palma De Mallorca
country: Spain
facility: Christian
state: Balearic Islands
Study officials:
affiliation: University of Balearic Islands
name: Natalia Romero Franco
role: STUDY_DIRECTOR
affiliation: University of Balearic Islands
name: Christian Castilla López
role: PRINCIPAL_INVESTIGATOR
References: