Evaluation of Physical Performance and Functional Asymmetries in Female Football

March 2, 2019 updated by: José A. Casajús, Universidad de Zaragoza

Evaluación Del Rendimiento físico y asimetrías Funcionales en el fútbol Femenino

Worldwide, soccer has grown increasingly popular among female players. According to the Women´s Football Survey of the Fédération Internationale de Football Association (FIFA), there were more than 30 million registered women soccer players in 2014. Elite female soccer players cover approximately a total distance of 10 km with 1.7 km completed at high-speed (>18 km/h-1), between 1350 and 1650 changes of activity like passing, dribbling, tackling and trapping and 5.1 and 31.2 repeated sprinting and high intensity bouts, respectively. Thus, it seems that those strategies addressed to improve such high-intensity activities should be considered a priority for female soccer players.

Different training methods to improve soccer specific variables have been developed such as, high-intensity interval training, resisted sprint training, strength training or plyometric training. Whilst individual training interventions have been shown to produce enhancements in measures of athletic performance for soccer players, there is a paucity of studies looking at the effectiveness of strength and power training specifically on performance measures in female soccer populations.

Unilateral strength asymmetry can be a risk factor of musculoskeletal injuries. In recent years, inter-limb asymmetries have been included in battery tests performed by different soccer clubs due to their relation with lower-limb injuries. Few studies have analysed the change of an intervention on inter-limb asymmetry in female soccer players, hence, more studies for this population are warranted.

The main aim of this research project is therefore, to evaluate the effect of a physical intervention on the performance and inter-limb asymmetries of female soccer players.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

68

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
      • Zaragoza, Spain
        • GENUD Research group (Growth, Exercise, NUtrition and Development)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years to 20 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Caucasian, Healthy participant, from 12 to 20 years old, with a history of training at least 3 years.

Exclusion Criteria:

  • Non-caucasian, injury.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Experimental group
Female soccers that perform a strength training
Other: Strength training program
Strength training program in female soccer players
No Intervention: Control group
Female soccers that do not perform a strength training

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Jumping in centimeters
Time Frame: Change from baseline in jumping height at 12 weeks
Jumping height was assessed using a vertical countermovement jump, drop jump and standing broad jump with flight.
Change from baseline in jumping height at 12 weeks
Velocity in seconds
Time Frame: Change from baseline in velocity at 12 weeks
Running speed was evaluated by a 40-m sprint time (standing start) with 10-m, 20-m, 30-m split times.
Change from baseline in velocity at 12 weeks
Change of direction in seconds
Time Frame: Change from Baseline in change of direction at 12 weeks
Change of direction ability was assessed by 180º change of direction and V-cut tests.
Change from Baseline in change of direction at 12 weeks
Inter-limb asymmetry in %
Time Frame: Change from Baseline in inter-limb asymmetry at 12 weeks
Inter-limb asymmetry was calculated using the following formula : Inter-limb asymmetry = 100/Max Value (right and left)*Min Value (right and left)*-1+100.
Change from Baseline in inter-limb asymmetry at 12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidad de Zaragoza

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 1, 2017

Primary Completion (Actual)

May 31, 2018

Study Completion (Actual)

July 1, 2018

Study Registration Dates

First Submitted

March 1, 2019

First Submitted That Met QC Criteria

March 2, 2019

First Posted (Actual)

March 5, 2019

Study Record Updates

Last Update Posted (Actual)

March 5, 2019

Last Update Submitted That Met QC Criteria

March 2, 2019

Last Verified

March 1, 2019

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • C.P. - C.I. PI19/039

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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