Hip Adductor Muscle Strength Changes With the Copenhagen Adductor Exercise in Male Football (Soccer) Players.
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Bath
- Enrollment
- 39
- Locations
- 1
- Primary Endpoint
- Eccentric hip adduction strength measured using a handheld dynamometer
Study Overview
Brief 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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Other
- Masking
- Single (Outcomes Assessor)
Eligibility Criteria
- Ages
- 18 Years to 26 Years (Adult)
- Sex
- Male
- Accepts Healthy Volunteers
- Yes
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.
Arms & Interventions
Copenhagen adductor exercise
20 players allocated to the Copenhagen adductor exercise group complete a progressive strengthening programme comprising of the Copenhagen adductor exercise over a period of 6 weeks. They will complete two exercise sessions a week consisting of one set of the Copenhagen adductor exercise. The exercise will be performed on each side. The training load will increase from 5 repetitions in week 1, to 15 repetitions in week 6. The exercise programme is performed at the end of the warm-up of a regular football training session.
Intervention: Copenhagen adductor exercise (Other)
Control
19 players allocated to the control group will be asked not to perform the Copenhagen adductor exercise or any other specific strength training for the adductor muscles and to continue to play football as usual.
Outcomes
Primary Outcomes
Eccentric hip adduction strength measured using a handheld dynamometer
Time Frame: Measured after intervention period (at week 6)
Lafayette handheld dynamometer (model: 01165) will be used to produce force values in Newtons.
Secondary Outcomes
- Rate of perceived exertion (RPE) at each session training session.(Measured during intervention period (at week 1, 2, 3, 4, 5 and 6))
- Eccentric hip adduction strength measured using a handheld dynamometer(Measured prior to and after intervention period (at week 0, 7, 8 and 9))
- Peak isometric adductor squeeze strength measured using a handheld dynamometer(Measured prior to and after intervention period (at week 0, 7, 8 and 9))
- Maximal weekly delayed onset of muscle soreness (DOMS)(Measured during intervention period (at week 1, 2, 3, 4, 5 and 6))
- Eccentric hip adduction strength measured using a handheld dynamometer(Measured during intervention period (at week 3))
- Peak isometric adductor squeeze strength measured using a handheld dynamometer(Measured after intervention period (at week 6))
- Peak isometric adductor squeeze strength measured using a handheld dynamometer(Measured during intervention period (at week 3))
Investigators
Mr Jack Dawkins
Principal Investigator
University of Bath