Evaluation of Physical Performance and Functional Asymmetries in Female Football

NCT03862560 | Completed

• 1 other identifier: C.P. - C.I. PI19/039
• Study Type: interventional
• Target: 68
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Resistance Training; Inter-limb Asymmetries; Athletic Performance

Keywords

Soccer; Female; Lower limb asymmetries; Strength

Outcome Measures

Primary Outcomes (4)

• 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

• 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

• 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

• 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

Study Arms (2)

Experimental group

EXPERIMENTAL

Female soccers that perform a strength training

Other: Strength training program

Control group

NO INTERVENTION

Female soccers that do not perform a strength training

Interventions

Strength training program OTHER

Strength training program in female soccer players

Experimental group

Eligibility Criteria

• Age: 12 Years - 20 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

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

You may not qualify if:

• Non-caucasian, injury.

Sponsors & Collaborators

• Universidad de Zaragoza: lead

Study Sites (1)

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

Zaragoza, Spain

Location

Related Publications (4)

• Hoff J, Helgerud J. Endurance and strength training for soccer players: physiological considerations. Sports Med. 2004;34(3):165-80. doi: 10.2165/00007256-200434030-00003.

  PMID: 14987126 RESULT

• 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. doi: 10.1136/bmj.38330.632801.8F. Epub 2005 Feb 7.

  PMID: 15699058 RESULT

• 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.

  PMID: 23772338 RESULT

• Kiani A, Hellquist E, Ahlqvist K, Gedeborg R, Michaelsson 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.

  PMID: 20065198 RESULT

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Senior Lecturer

Study Record Dates

• First Submitted: March 1, 2019
• First Posted: March 5, 2019
• Study Start: July 1, 2017
• Primary Completion: May 31, 2018
• Study Completion: July 1, 2018
• Last Updated: March 5, 2019

Record last verified: 2019-03

Locations

ES (1)