Hamstring InjuryNCT06165783
Rehabilitation of Partially Injured Hamstring Muscles
A study testing Therapeutic Exercises and Ultrasound in people with Hamstring Injury, run by Universidad de Zaragoza at 1 site in Iraq.
Trial summary
The aim of this study protocol is to describe the rationale and methodology for evaluating the effect of using therapeutic exercises and ultrasound in the rehabilitation of partially injured hamstring muscles on elite football players. Read more about this study
- Who is it for?
- Ages 18 to 35 years, men only
- Conditions the study is for
- Hamstring Injury
- What is being tested?
- Therapeutic Exercises and Ultrasound
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 24 participants
- Where
- 1 siteIraq
- Study dates
- 21 Mar 2024to 30 May 2024
- 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
- No healthy volunteers
- Adult
Who may be able to join
- Players from the eight clubs in the Iraqi Football League
- Partially strained hamstring muscle pain when training football or playing a match, identified as:
- Player reported sudden pain in hamstring muscle c. Without any additional ailment.
- Based on the clinical signs and symptoms, defined as:
- Localised pain when palpating of hamstring muscle
- Localised pain from at least one of the following activities: The Extender, The Diver, and The Glider.
- MRI-confirmed of partially injured hamstring
- Available for follow-up
Who cannot join
- Players with other injuries apart from hamstring injuries
- Players with a recent six-month history of a verified or suspected hamstring injury in the same leg.
- injured players who are already taking part in another rehabilitation program
- General contraindications for MRI
Trial locations and contacts
1 site in 1 country.
Iraq1 site
University of Baghdad/ college of Physical Education and Sports Sciences
Baghdad, 10070
About this study
Official title: The Effect of Therapeutic Exercises and Ultrasound for Rehabilitation of Partially Injured Hamstring Muscles in Elite Football Players: a Study Protocol for a Randomized Controlled Trial
The aim of this study protocol is to describe the rationale and methodology for evaluating the effect of using therapeutic exercises and ultrasound in the rehabilitation of partially injured hamstring muscles on elite football players.
Read the detailed description
Hamstring muscle injuries are common among highly active individuals. Modern Football is a challenging sport characterized by extremely dynamic and cyclical game motions including numerous bouts of high-speed movements such as accelerating, jumping, and change in direction, all of which are carried out at a high level of physical and technical difficulty. The most common reason for hamstring muscle injury is high-performance intensity. In addition, neuromuscular fatigue, athlete aging, low muscle strength, and hamstring muscle flexibility are also risk factors for hamstring muscle injuries. On the other hand, the main causes of repetition injury to the same muscle are the presence of a previous injury, the size of the muscle tear and the lessening of the long head muscle bundles of the biceps femoris
- Conditions
- Hamstring Injury
- Being tested
- Therapeutic Exercises and Ultrasound
- Keywords
- Therapeutic exercises, Hamstring muscle injuries, TUS, Therapeutic exercises, Hamstring muscle injuries, TUS
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Therapeutic Exercises and UltrasoundOther
describe the rationale and methodology for evaluating the effect of using therapeutic exercises and ultrasound in the rehabilitation of partially injured hamstring muscles
| Study group | Role | What they receive |
|---|---|---|
| evaluate the effect of using therapeutic exercises and ultrasound | Experimental | evaluate the effect of using therapeutic exercises and ultrasound for the rehabilitation of partially injured hamstring muscles. Receives: Other: Therapeutic Exercises and Ultrasound |
| analyse its effectiveness on the speedy healing | Experimental | analyse its effectiveness on the speedy healing, which will be defined through some physical variables (hamstring muscle strength, the electrical activity of hamstring muscles) and pain perception. Receives: Other: Therapeutic Exercises and Ultrasound |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time to return to play
The primary outcomes will be speedy healing, that is, the amount of time needed to recover from an injury in order to fully participate in team training and be available for match selection by the medical staff based on five standardized criteria: 1. no pain on palpation 2. pain free Range of Motion (ROM) 3. Muscular strength evaluation 4. Symptom-free completion of rehabilitation program 5. A specific running test.
Measured: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Secondary outcomes (3)
Hamstring muscle strength
Force Sensor from Chronojump. Is an sensor measure of to conduct isometric knee flexion strength testing at two distinct angles: 15° and 90° of knee flexion.
Measured: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Muscle bio potential signals
The Electromyogram (EMG) is collected at 1000 Hz with MyoTrace™ 400 . Is a versatile portable handheld, Self-adhesive silver chloride dual snap electrodes for surface attachment will be placed on the leg muscles. The MyoTrace 400 handheld transmitter.
Measured: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Degree of pain
Pain visual analog scale (VAS). It is a unidimensional measure of hamstrings pain intensity that consists of a straight horizontal line of fixed length (typically 100 mm) that is graduated. The ends, which were towards the direction of left (worse) to right (best), defined the extreme boundaries of the parameter to be calculated (pain); the higher the score, the more severe the suffering.
Measured: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Dec 2023
- Study start21 Mar 2024
- Primary completion30 May 2024
- Study completion30 May 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Hamstring InjuryStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad de Zaragoza
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Kamal Hadib Abdulridha, Universidad de Zaragoza
- Investigators
- Kamal H Abdulridha, PhD/Studet, Principal investigator, Universidad de Zaragoza
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06165783
- Sponsor's protocol ID
- Injured Hamstring Muscles
- Status last verified
- May 2024
- First submitted
- 23 Nov 2023
- Last updated
- 3 Jun 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Hadib Abdulridha K, Al-Tameemi IKH, Alzaidi AHA, Cuenca-Zaldivar JN, Aguilar Latorre A, Gomez-Soria I, Calatayud E. The Effect of Therapeutic Exercises and Ultrasound for Rehabilitation of Partially Injured Hamstring Muscles in Elite Soccer (Football) Players: A Study Protocol for a Randomized Controlled Trial. Int J Sports Phys Ther. 2026 Apr 1;21(4):440-452. doi: 10.26603/001c.156100. eCollection 2026.
PubMed 41939953
Study at a glance
From the registry record, last updated by the sponsor on 3 Jun 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Therapeutic Exercises and Ultrasound for Rehabilitation of Partially Injured Hamstring Muscles in Elite Football Players: a Study Protocol for a Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT06165783
- Acronym / sponsor ID
- Injured Hamstring Muscles
- Conditions
- Hamstring Injury
- Keywords
- Therapeutic exercises, Hamstring muscle injuries, TUS, Therapeutic exercises, Hamstring muscle injuries, TUS
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- Universidad de ZaragozaUniversity, hospital or other
- Study start
- 21 Mar 2024 (actual)
- Primary completion
- 30 May 2024 (actual)
- Study completion
- 30 May 2024 (actual)
- First posted
- 11 Dec 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.
The aim of this study protocol is to describe the rationale and methodology for evaluating the effect of using therapeutic exercises and ultrasound in the rehabilitation of partially injured hamstring muscles on elite football players.
Detailed description
Hamstring muscle injuries are common among highly active individuals. Modern Football is a challenging sport characterized by extremely dynamic and cyclical game motions including numerous bouts of high-speed movements such as accelerating, jumping, and change in direction, all of which are carried out at a high level of physical and technical difficulty. The most common reason for hamstring muscle injury is high-performance intensity. In addition, neuromuscular fatigue, athlete aging, low muscle strength, and hamstring muscle flexibility are also risk factors for hamstring muscle injuries. On the other hand, the main causes of repetition injury to the same muscle are the presence of a previous injury, the size of the muscle tear and the lessening of the long head muscle bundles of the biceps femoris
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| evaluate the effect of using therapeutic exercises and ultrasound | Experimental | Other: Therapeutic Exercises and Ultrasoundevaluate the effect of using therapeutic exercises and ultrasound for the rehabilitation of partially injured hamstring muscles. |
| analyse its effectiveness on the speedy healing | Experimental | Other: Therapeutic Exercises and Ultrasoundanalyse its effectiveness on the speedy healing, which will be defined through some physical variables (hamstring muscle strength, the electrical activity of hamstring muscles) and pain perception. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (8 listed)
- Players from the eight clubs in the Iraqi Football League
- Partially strained hamstring muscle pain when training football or playing a match, identified as:
- Based on the clinical signs and symptoms, defined as:
- MRI-confirmed of partially injured hamstring
- Available for follow-up
Key exclusion criteria (4 listed)
- Players with other injuries apart from hamstring injuries
- Players with a recent six-month history of a verified or suspected hamstring injury in the same leg.
- injured players who are already taking part in another rehabilitation program
- General contraindications for MRI
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 |
|---|---|---|
| Therapeutic Exercises and Ultrasounddescribe the rationale and methodology for evaluating the effect of using therapeutic exercises and ultrasound in the rehabilitation of partially injured hamstring muscles | Other | analyse its effectiveness on the speedy healing, evaluate the effect of using therapeutic exercises and ultrasound |
Primary outcome
Time to return to play
Time frame: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
The primary outcomes will be speedy healing, that is, the amount of time needed to recover from an injury in order to fully participate in team training and be available for match selection by the medical staff based on five standardized criteria: 1. no pain on palpation 2. pain free Range of Motion (ROM) 3. Muscular strength evaluation 4. Symptom-free completion of rehabilitation program 5. A specific running test.
3 secondary outcomes
Hamstring muscle strength
Time frame: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Muscle bio potential signals
Time frame: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Degree of pain
Time frame: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jun 2024.
- Derived from this study: PubMed 41939953Hadib Abdulridha K, Al-Tameemi IKH, Alzaidi AHA, Cuenca-Zaldivar JN, Aguilar Latorre A, Gomez-Soria I, Calatayud E. The Effect of Therapeutic Exercises and Ultrasound for Rehabilitation of Partially Injured Hamstring Muscles in Elite Soccer (Football) Players: A Study Protocol for a Randomized Controlled Trial. Int J Sports Phys Ther. 2026 Apr 1;21(4):440-452. doi: 10.26603/001c.156100. eCollection 2026.
- Individual participant dataSharing planned: No
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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.
Kamal H Abdulridha, PhD/Studet principal investigator
Universidad de Zaragoza
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Therapeutic Exercises and Ultrasound in people with Hamstring Injury, run by Universidad de Zaragoza at 1 site in Iraq.
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 8 inclusion and 4 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: finished, as of the sponsor's last update on 3 Jun 2024. 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 Iraq. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time to return to play (time frame: Daily session from first therapy session until moment of return to play, up to an average of Six Weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06165783, which also lists 1 linked publication.
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 3 Jun 2024; AzTrials last refreshed its copy on 7 Nov 2026.