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Completed

NCT Number: NCT03862560

Evaluation of Physical Performance and Functional Asymmetries in Female Football

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.

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Key information

Conditions

Resistance Training Athletic Performance Inter-limb Asymmetries

Age range

12 year–20 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

GENUD Research group (Growth, Exercise, NUtrition and Development)

Zaragoza, Spain

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Strength training program

Other

Strength training program in female soccer players

Primary outcomes

  1. 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.

  2. 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.

  3. 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.

  4. 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.

Sponsors and collaborators

Lead sponsor

Universidad de Zaragoza

Other

Registry information

Official study title

Evaluación Del Rendimiento físico y asimetrías Funcionales en el fútbol Femenino

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Mar 5, 2019
Registry last updated
Mar 5, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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