The Copenhagen Adductor Exercise Trial

Eccentric Hip Adduction Strength Clinical Trial

Official title:

Hip Adductor Muscle Strength Changes With the Copenhagen Adductor Exercise in Male Football (Soccer) Players.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03684200
• Other study ID #: UBath
• Status: Completed
• Phase: N/A
• Start date: October 1, 2018
• Est. completion date: December 10, 2018

Study information

• Verified date: December 2018
• Source: University of Bath
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to investigate the efficacy of a 6-week intervention, using the Copenhagen adductor exercise, on adductor muscle strength in sub-elite male footballers. Secondly, it will also examine the effect of a 3-week detraining period, after stopping the Copenhagen adductor exercise, on adductor muscle strength.

The primary outcome measure is eccentric hip adduction strength measured using a handheld dynamometer. Additionally, peak isometric adductor squeeze strength will also be measured using a handheld dynamometer.

The hypothesis is that strength training of the adductor muscles elicited by the Copenhagen adductor exercise will result in enhanced eccentric hip adduction strength.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 39
• Est. completion date: December 10, 2018
• Est. primary completion date: December 4, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years to 26 Years

Eligibility

Inclusion Criteria:

• Sub-elite English football player

• Age 18-26

• Participant can read, speak and understand English.

• Participant can receive and reply to texts on a cell phone using Short Message Services (SMS).

• Able to participate fully in competitive football training at time of testing.

Exclusion Criteria:

• Hip and groin pain resulting in loss of football training and matches in the 2 months prior to commencement of the trial.

• Specific strength training of the adductor muscles (>/1 week) in the 2 months prior to commencement of the trial.

• Participant cannot attend strength testing sessions during the study.

Related Conditions & MeSH terms

• Eccentric Hip Adduction Strength

Intervention

Other:
• Copenhagen adductor exercise
The active player is supported on one forearm on the floor and the upper arm is resting along their side. The supporting partner places their hands at the ankle and the knee of the upper leg. The active partner raises their body from the floor and adducts both legs in a three second movement until the body reaches a straight line. The body is then lowered to the ground in a three second movement, the foot of the lower leg touches the ground before performing another repetition.

Locations

Country	Name	City	State
United Kingdom	Physio & Sports Science Centre, University of Bath	Bath	Avon

Sponsors (2)

Lead Sponsor	Collaborator
University of Bath	Copenhagen University Hospital, Hvidovre

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Eccentric hip adduction strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured after intervention period (at week 6)
Secondary	Eccentric hip adduction strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured during intervention period (at week 3)
Secondary	Eccentric hip adduction strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured prior to and after intervention period (at week 0, 7, 8 and 9)
Secondary	Peak isometric adductor squeeze strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured after intervention period (at week 6)
Secondary	Peak isometric adductor squeeze strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured during intervention period (at week 3)
Secondary	Peak isometric adductor squeeze strength measured using a handheld dynamometer	Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.	Measured prior to and after intervention period (at week 0, 7, 8 and 9)
Secondary	Maximal weekly delayed onset of muscle soreness (DOMS)	Measured using a 0-10 numeric rating scale (NRS).	Measured during intervention period (at week 1, 2, 3, 4, 5 and 6)
Secondary	Rate of perceived exertion (RPE) at each session training session.	Measured using the 6-20 Borg Rating of Perceived Exertion Scale.	Measured during intervention period (at week 1, 2, 3, 4, 5 and 6)