Evaluation of Physical Performance and Functional Asymmetries in Female Football

Resistance Training Clinical Trial

Official title:

Evaluación Del Rendimiento físico y asimetrías Funcionales en el fútbol Femenino

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03862560
• Other study ID #: C.P. - C.I. PI19/039
• Status: Completed
• Phase: N/A
• Start date: July 1, 2017
• Est. completion date: July 1, 2018

Study information

• Verified date: March 2019
• Source: Universidad de Zaragoza
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 68
• Est. completion date: July 1, 2018
• Est. primary completion date: May 31, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 12 Years to 20 Years

Eligibility

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.

Related Conditions & MeSH terms

• Athletic Performance
• Inter-limb Asymmetries
• Resistance Training

Intervention

Other:
• Strength training program
Strength training program in female soccer players

Locations

Country	Name	City	State
Spain	GENUD Research group (Growth, Exercise, NUtrition and Development)	Zaragoza

Sponsors (1)

Lead Sponsor	Collaborator
Universidad de Zaragoza

Country where clinical trial is conducted

Spain, 

References & Publications (4)

Brumitt J, Heiderscheit BC, Manske RC, Niemuth PE, Rauh MJ. Lower extremity functional tests and risk of injury in division iii collegiate athletes. Int J Sports Phys Ther. 2013 Jun;8(3):216-27. — View Citation

Hoff J, Helgerud J. Endurance and strength training for soccer players: physiological considerations. Sports Med. 2004;34(3):165-80. Review. — View Citation

Kiani A, Hellquist E, Ahlqvist K, Gedeborg R, Michaëlsson K, Byberg L. Prevention of soccer-related knee injuries in teenaged girls. Arch Intern Med. 2010 Jan 11;170(1):43-9. doi: 10.1001/archinternmed.2009.289. — View Citation

Olsen OE, Myklebust G, Engebretsen L, Holme I, Bahr R. Exercises to prevent lower limb injuries in youth sports: cluster randomised controlled trial. BMJ. 2005 Feb 26;330(7489):449. Epub 2005 Feb 7. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Jumping in centimeters	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
Primary	Velocity in seconds	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
Primary	Change of direction in seconds	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
Primary	Inter-limb asymmetry in %	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