Adductor StrainNCT05733247
The Effect of 6 Week Adductor Exercise Programs on Adductor Muscle Function and Performance
A study testing Copenhagen adductor exercise and The adduction and abduction partner exercise in people with Adductor Strain, run by Dublin City University at 1 site in Ireland.
Trial summary
This research project will investigate the effects of two 6-week adductor (hip muscle) exercise programmes on adductor muscle function and performance. Measures of adductor muscle strength and performance (jump height, hopping and sprint) and self reported hip and groin function using a questionnaire will be recorded… Read more about this study
- Who is it for?
- Ages 18 to 35 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Adductor Strain
- What is being tested?
- Copenhagen adductor exercise and The adduction and abduction partner exercise
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteIreland
- Study dates
- 15 Feb 2023to 23 Aug 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- free from hip and groin injury in the 6 months prior to the study • currently competing in team sports at least three occasions per week
Who cannot join
- history of a hip or groin injury in the 3 months prior to the study
- a history of involvement in an adductor strengthening, injury prevention programme in the 3 months prior to the study.
Trial locations and contacts
1 site in 1 country.
About this study
This research project will investigate the effects of two 6-week adductor (hip muscle) exercise programmes on adductor muscle function and performance.
Measures of adductor muscle strength and performance (jump height, hopping and sprint) and self reported hip and groin function using a questionnaire will be recorded pre and post a 6-week period. A group of footballers will be recruited and randomly allocated to an intervention or control group. Two different intervention groups will complete two different, six-week adductor exercise programmes in addition to their regular training programme. The exercise programmes will last 15 minutes (approximately) per session, with 3 sessions per week. The control group will continue their regular training programme.
Read the detailed description
Participants will be recruited from the local university sports clubs. Club chairpersons will be asked to send an email to club players. Players interested in participating in the study will be asked to attend a meeting where the study will be explained to them. Those who were interested will then be assessed for inclusion and exclusion criteria.
Group allocation:
A four block randomization method will be used to allocate participants to the Copenhagen adductor exercise protocol or the adduction and abduction partner exercise protocol.
Interventions:
Copenhagen adductor exercise protocol or the adduction and abduction partner exercise.
Testing procedure:
The isometric strength of the participants' hip adductors and abductors will be recorded before and after the exercise intervention.
A 10 point visual analogue scale will be used to record the level of muscle soreness experienced after each training session.
- Conditions
- Adductor Strain
- Being tested
- Copenhagen adductor exercise, The adduction and abduction partner exercise
- Keywords
- Hip adductor, Hip abductor, groin injuries, Copenhagen adductor
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Copenhagen adductor exerciseOther
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 -3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise.
The adduction and abduction partner exerciseOther
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 -3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise.
| Study group | Role | What they receive |
|---|---|---|
| Copenhagen adductor exercise | Active comparator | The modified Copenhagen adductor exercise consists of 6 levels through which the participant will progress when able to complete one level adequately (able to complete the exercise in the given timeframe with adequate control). The first 5 levels are isometric contractions progressing in difficulty with the 6th level including concentric and eccentric components.
1. Participants perform a supported isometric adduction hold off a 30cm support in a short-lever side-lying position. The participants then raise their pelvis from the floor, keeping their lower knee on the ground for support and hold for 20 seconds, repeating it twelve times on each side.
2. Participants progressed level 1 by lifting their supporting leg, bringing their knees together and holding position for 20 seconds, repeating it twelve times on each side. Receives: Other: Copenhagen adductor exercise |
| adduction and abduction partner exercise | Experimental | Participants are in a sitting position with their knees extended and hips abducted, supporting themselves with their hands behind their trunks, facing each other. For the adduction exercise, the participant will place his feet and lower leg on the outside of his partner's lower legs and feet. He will then adduct his hips, bringing his feet slowly together while his partner slowly resists this movement.
For the abduction exercise, the participant will place his feet and lower legs on the inside of his partner's feet and lower legs. The participant will slowly abduct the hips while the partner resists this movement.
Both exercises are performed over 6 seconds (a three second concentric and three second eccentric contraction) with as maximal effort. Receives: Other: The adduction and abduction partner exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
isometric hip adductor and abductor strength
The maximum isometric hip abductor and adductor strength is assessed with the participant being tested was in supine position, with the test-leg placed at the end of the examination table, and the opposite leg slightly flexed. The dynamometer is placed 5 cm proximal to the proximal edge of the lateral mal¬leolus or 5 cm proximal to the proximal edge of the medial malleolus for hip abduction and adduction, respectively. The dynamometer is externally fix¬ated by the tester's hand/arm placed between the wall and the dynamometer. Participants are initially given two warm up trials of each test of the hip abductors and adductors at 50% and 100% of maximal voluntary isometric force (MVC), followed by three valid MVC trials at the rate of one trial every 60 s
Measured: Change from baseline after 6 weeks
Hop test function
Single leg hop - the participant will hop as far forwards as possible. Triple hop for distance. Participants will be asked to hop forward three times in a row as far as possible.
Crossover hop test. A 3 metre strip of tape will be place on the ground in front of the participants. Participants will be asked to stand on one foot with the tape to the outside of their stance foot. They will then be asked to hop forward three times in a row as far as possible while alternately crossing over the tape and then landing on the same foot, and holding this position for two seconds.
Side hop test. Participants will be asked to jump from side to side as many times as possible in 30 seconds without touching the tape. The number of successful jumps will be recorded.
Measured: Change from baseline after 6 weeks
Secondary outcomes (1)
Sprint performance
all participants will perform three maximal 30 metre sprint tests with 4 minutes of recovery in between. Time elapsed will be recorded by timing gates placed at 0m, 5m, 15m, and 30m. Participants will start from a standing split position. The first timing gate will be triggered at initial toe off of the back leg. To account for the start of the sprint, a high speed 240Hz iPhone 6 camera and my sprint app will be used to adjust sprint times by calculating the time difference between toe off and the onset of initial movement. The camera will only be focussed on the participant's heel and there will be no images recorded that will identify a participant. Times will be recorded and mechanical sprint variables (maximal horizontal force production, maximal horizontal power output and maximal theoretical velocity) will be calculated using an Excel spreadsheet.The participants best time of the three attempts will be recorded.
Measured: Change from baseline after 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Feb 2023
- Study start15 Feb 2023 (estimated)
- Primary completion6 May 2023 (estimated)
- Study completion23 Aug 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Adductor StrainStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Dublin City University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Enda Whyte, Dublin City University
- Investigators
- Enda Whyte, PhD, Principal investigator, Dublin City University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05733247
- Sponsor's protocol ID
- 2022_ATT_EW_14
- Status last verified
- Feb 2023
- First submitted
- 8 Feb 2023
- Last updated
- 17 Feb 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Feb 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of 6 Week Adductor Exercise Programs on Adductor Muscle Function and Performance
- ClinicalTrials.gov ID
- NCT05733247
- Acronym / sponsor ID
- 2022_ATT_EW_14
- Conditions
- Adductor Strain
- Keywords
- Hip adductor, Hip abductor, groin injuries, Copenhagen adductor
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Dublin City UniversityUniversity, hospital or other
- Study start
- 15 Feb 2023 (estimated)
- Primary completion
- 6 May 2023 (estimated)
- Study completion
- 23 Aug 2023 (estimated)
- First posted
- 17 Feb 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This research project will investigate the effects of two 6-week adductor (hip muscle) exercise programmes on adductor muscle function and performance.
Measures of adductor muscle strength and performance (jump height, hopping and sprint) and self reported hip and groin function using a questionnaire will be recorded pre and post a 6-week period. A group of footballers will be recruited and randomly allocated to an intervention or control group. Two different intervention groups will complete two different, six-week adductor exercise programmes in addition to their regular training programme. The exercise programmes will last 15 minutes (approximately) per session, with 3 sessions per week. The control group will continue their regular training programme.
Detailed description
Participants will be recruited from the local university sports clubs. Club chairpersons will be asked to send an email to club players. Players interested in participating in the study will be asked to attend a meeting where the study will be explained to them. Those who were interested will then be assessed for inclusion and exclusion criteria.
Group allocation:
A four block randomization method will be used to allocate participants to the Copenhagen adductor exercise protocol or the adduction and abduction partner exercise protocol.
Interventions:
Copenhagen adductor exercise protocol or the adduction and abduction partner exercise.
Testing procedure:
The isometric strength of the participants' hip adductors and abductors will be recorded before and after the exercise intervention.
A 10 point visual analogue scale will be used to record the level of muscle soreness experienced after each training session.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Copenhagen adductor exercise | Active comparator | Other: Copenhagen adductor exerciseThe modified Copenhagen adductor exercise consists of 6 levels through which the participant will progress when able to complete one level adequately (able to complete the exercise in the given timeframe with adequate control). The first 5 levels are isometric contractions progressing in difficulty with the 6th level including concentric and eccentric components. 1. Participants perform a supported isometric adduction hold off a 30cm support in a short-lever side-lying position. The participants then raise their pelvis from the floor, keeping their lower knee on the ground for support and hold for 20 seconds, repeating it twelve times on each side. 2. Participants progressed level 1 by lifting their supporting leg, bringing their knees together and holding position for 20 seconds, repeating it twelve times on each side. |
| adduction and abduction partner exercise | Experimental | Other: The adduction and abduction partner exerciseParticipants are in a sitting position with their knees extended and hips abducted, supporting themselves with their hands behind their trunks, facing each other. For the adduction exercise, the participant will place his feet and lower leg on the outside of his partner's lower legs and feet. He will then adduct his hips, bringing his feet slowly together while his partner slowly resists this movement. For the abduction exercise, the participant will place his feet and lower legs on the inside of his partner's feet and lower legs. The participant will slowly abduct the hips while the partner resists this movement. Both exercises are performed over 6 seconds (a three second concentric and three second eccentric contraction) with as maximal effort. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- free from hip and groin injury in the 6 months prior to the study • currently competing in team sports at least three occasions per week
Key exclusion criteria (2 listed)
- history of a hip or groin injury in the 3 months prior to the study
- a history of involvement in an adductor strengthening, injury prevention programme in the 3 months prior to the study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Copenhagen adductor exerciseWeek 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 -3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. | Other | Copenhagen adductor exercise |
| The adduction and abduction partner exerciseWeek 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 -3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. | Other | adduction and abduction partner exercise |
Primary outcome
isometric hip adductor and abductor strength
Time frame: Change from baseline after 6 weeks
The maximum isometric hip abductor and adductor strength is assessed with the participant being tested was in supine position, with the test-leg placed at the end of the examination table, and the opposite leg slightly flexed. The dynamometer is placed 5 cm proximal to the proximal edge of the lateral mal¬leolus or 5 cm proximal to the proximal edge of the medial malleolus for hip abduction and adduction, respectively. The dynamometer is externally fix¬ated by the tester's hand/arm placed between the wall and the dynamometer. Participants are initially given two warm up trials of each test of the hip abductors and adductors at 50% and 100% of maximal voluntary isometric force (MVC), followed by three valid MVC trials at the rate of one trial every 60 s
Hop test function
Time frame: Change from baseline after 6 weeks
Single leg hop - the participant will hop as far forwards as possible. Triple hop for distance. Participants will be asked to hop forward three times in a row as far as possible. Crossover hop test. A 3 metre strip of tape will be place on the ground in front of the participants. Participants will be asked to stand on one foot with the tape to the outside of their stance foot. They will then be asked to hop forward three times in a row as far as possible while alternately crossing over the tape and then landing on the same foot, and holding this position for two seconds. Side hop test. Participants will be asked to jump from side to side as many times as possible in 30 seconds without touching the tape. The number of successful jumps will be recorded.
1 secondary outcome
Sprint performance
Time frame: Change from baseline after 6 weeks
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Feb 2023.
- Individual participant dataSharing planned: No
Related trials for Adductor Strain
Not yet recruiting
Impact of Tailored Preventive Exercise Program for Reducing Risk of Hip Adductors Injury
Adductor Strain
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Enda Whyte, PhD principal investigator
Dublin City University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Copenhagen adductor exercise and The adduction and abduction partner exercise in people with Adductor Strain, run by Dublin City University at 1 site in Ireland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 17 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Ireland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Enda whyte, PhD (+35317007378, enda.whyte@dcu.ie), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
isometric hip adductor and abductor strength (time frame: Change from baseline after 6 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Feb 2023; AzTrials last refreshed its copy on 1 Nov 2026.