Hamstring InjuryNCT06089681
Comparison of Trunk Muscle Performance Between Sprinters With and Without Hamstring Strain Injury History
An observational study of Hamstring Injury, run by National Yang Ming Chiao Tung University at 1 site in Taiwan.
Trial summary
The aim of this study is to: 1. Compare trunk muscle performance between sprinters with and without HSI history 2. Investigate whether running speed influences the differences on trunk muscle activity between these two groups Read more about this study
- Who is it for?
- Ages 16 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- Hamstring Injury
- How many people
- 32 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Aug 2022to 10 Oct 2023
- Phase
- Observational
- 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 16 to 30 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: * Age between 16 to 30 years old * Sprinters who specialize in 100, 200, 400 meters, or 100, 400 metres hurdles * Participates in sprint training ≥ three times a week * Without any pain when participation in sporting activity
Who may be able to join
- Have ≥ twice hamstring strain injury occurrence in the past year
- Without any hamstring strain injury occurrence in the past year
- Match gender, age, BMI, dominant side, training experience, training frequency, Personal best record in 100m with HSI history group
Who cannot join
- Neurological, cardiorespiratory or systemic disorder
- Have low back pain history in the past year
- Scoliosis
- Sacroiliac joint dysfunction
- Complaints of pain on trunk \& lower extremity
- Leg length difference > 2cm
- History of lower extremity surgery
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparison of Trunk Muscle Activity, Muscle Strength, Muscle Endurance Between Sprinters With and Without Hamstring Strain Injury History
The aim of this study is to:
- Compare trunk muscle performance between sprinters with and without HSI history
- Investigate whether running speed influences the differences on trunk muscle activity between these two groups
Read the detailed description
Hamstring strain injury is one of the most common injuries in the lower extremities. As running speed increases, the force and load on the hamstring muscles significantly increase, thereby increasing the risk of injury. Trunk muscles are connected thigh muscles through the pelvis, and poor trunk muscle capacity of maintaining stability affect the muscle length of the lower limbs during movement, reducing their contractile tension and increasing the risk of injury. Earlier literature also indicated that poor trunk muscle performance is related to the occurrence of lower extremity sport injuries. However, literature on the relationship between trunk muscle performance and hamstring strain injury is scarce. Testing methods of existing research have failed to fully reflect the actual circumstances of sprinting. Moreover, previous studies have predominantly focused on soccer players. However, the running mechanics of soccer player and sprinter are slightly different. Currently, there is lack of research investigate the relationship between trunk muscle performance and hamstring strain injury in sprinters.Therefore, the aim of this study is to: (1) Compare trunk muscle performance between sprinters with and without HSI history, (2) nvestigate whether running speed influences the differences on trunk muscle activity between these two groups
- Conditions
- Hamstring Injury
- Keywords
- Hamstring Strain Injury, Trunk Muscle Performance, Hip Muscle Performance, Sprinter
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Hamstring strain injury history group | Sprinters who have ≥ twice hamstring strain injury occurrence in the past year | |
| Control group | Sprinters who match gender, age, BMI, dominant side, training experience, training frequency, PB in 100m with HSI history group and without any hamstring strain injury occurrence in the past year |
What is being measured
The primary outcome is the main question the study is designed to answer.
Surface electromyography (Noraxon TeleMyo sEMG System, Noraxon USA Inc, Scottdale, Ariz)
Muscle activation of external oblique, internal oblique, erect spinae, gluteus maximus when sprinting on the treadmill at 40% and 60% maximal speeds
Measured: Immediately during the experiment
Isometric trunk flexor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)
Isometric muscle strength of trunk flexor is measured with Biodex System 4 Pro™ in sitting position
Measured: Immediately during the experiment
Isometric trunk extensor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)
Isometric muscle strength of trunk extensor is measured with Biodex System 4 Pro™ in sitting position
Measured: Immediately during the experiment
Isometric trunk rotator muscle strength (microFET®2 Digital Handheld Dynamometer)
Isometric muscle strength of trunk rotator is measured with microFET in hook-lying position
Measured: Immediately during the experiment
Trunk flexor muscle endurance
Muscle endurance of trunk flexor is measured with trunk muscle endurance test. It requires subjects to sit on the test bench and place the upper body against a support with an angle of 60˚ from the test bed. Both the knees and hips are flexed to 90˚. The arms are folded across the chest with hands placed on the opposite shoulder and toes are placed under toe straps. Subjects will be instructed to maintain the body position while the supporting wedge is pulled back 10cm to begin the test. The test ends when the upper body falls below the 60˚ angle. The time the subjects maintain will be recorded.
Measured: Immediately during the experiment
Trunk extensor muscle endurance
Muscle endurance of trunk extensor is measured with Biering-Sorensen test. It requires subjects to lay prone with the lower body fixed to the test bed at the ankles, knees, and hips and the upper body extended in a cantelevered fashion over the edge of the test bench. The test bench surface is approximately 25cm above the surface of the floor. Subjects rest their upper bodies on the floor before the exertion. At the beginning of the exertion the upper limbs are held across the chest with the hands resting on the opposite shoulders, and the upper body is lifted off the floor until the upper torso is horizontal to the floor. Subjects are instructed to maintain the horizontal position as long as possible. The time the subjects maintain will be recorded.
Measured: Immediately during the experiment
Trunk lateral flexor muscle endurance
Muscle endurance of trunk lateral flexor is measured with side bridge test. It requires subjects to lay on an exercise mat (thickness, 2.5cm) on their sides with legs extended. The top foot is placed in front of the lower foot on the mat for support. Subjects are instructed to support themselves lifting their hips off the mat to maintain a straight line over their full body length, and support themselves on one elbow and their feet. The uninvolved arm is held across the chest with hand placed on the opposite shoulder. The test ends when the hips returns to the exercise mat. The time the subjects maintain will be recorded.
Measured: Immediately during the experiment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Oct 2023
- Study start1 Aug 2022
- Primary completion8 Sep 2023
- Study completion10 Oct 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Hamstring InjuryStudies of the same condition, open and under way.
- More trials run by National Yang Ming Chiao Tung UniversityThe sponsor's other registered studies.
- 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
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 32 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Yang Ming Chiao Tung University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06089681
- Sponsor's protocol ID
- YM111052F
- Status last verified
- Apr 2023
- First submitted
- 28 Jun 2022
- Last updated
- 18 Oct 2023
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Oct 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Trunk Muscle Activity, Muscle Strength, Muscle Endurance Between Sprinters With and Without Hamstring Strain Injury History
- ClinicalTrials.gov ID
- NCT06089681
- Acronym / sponsor ID
- YM111052F
- Conditions
- Hamstring Injury
- Keywords
- Hamstring Strain Injury, Trunk Muscle Performance, Hip Muscle Performance, Sprinter
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 32 participants (actual)
- Lead sponsor
- National Yang Ming Chiao Tung UniversityUniversity, hospital or other
- Study start
- 1 Aug 2022 (actual)
- Primary completion
- 8 Sep 2023 (actual)
- Study completion
- 10 Oct 2023 (actual)
- First posted
- 18 Oct 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 is to:
- Compare trunk muscle performance between sprinters with and without HSI history
- Investigate whether running speed influences the differences on trunk muscle activity between these two groups
Detailed description
Hamstring strain injury is one of the most common injuries in the lower extremities. As running speed increases, the force and load on the hamstring muscles significantly increase, thereby increasing the risk of injury. Trunk muscles are connected thigh muscles through the pelvis, and poor trunk muscle capacity of maintaining stability affect the muscle length of the lower limbs during movement, reducing their contractile tension and increasing the risk of injury. Earlier literature also indicated that poor trunk muscle performance is related to the occurrence of lower extremity sport injuries. However, literature on the relationship between trunk muscle performance and hamstring strain injury is scarce. Testing methods of existing research have failed to fully reflect the actual circumstances of sprinting. Moreover, previous studies have predominantly focused on soccer players. However, the running mechanics of soccer player and sprinter are slightly different. Currently, there is lack of research investigate the relationship between trunk muscle performance and hamstring strain injury in sprinters.Therefore, the aim of this study is to: (1) Compare trunk muscle performance between sprinters with and without HSI history, (2) nvestigate whether running speed influences the differences on trunk muscle activity between these two groups
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Hamstring strain injury history group | – | –Sprinters who have ≥ twice hamstring strain injury occurrence in the past year |
| Control group | – | –Sprinters who match gender, age, BMI, dominant side, training experience, training frequency, PB in 100m with HSI history group and without any hamstring strain injury occurrence in the past year |
Who may qualify
- Ages
- 16 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- * Age between 16 to 30 years old * Sprinters who specialize in 100, 200, 400 meters, or 100, 400 metres hurdles * Participates in sprint training ≥ three times a week * Without any pain when participation in sporting activity
Key inclusion criteria (3 listed)
- Have ≥ twice hamstring strain injury occurrence in the past year
- Without any hamstring strain injury occurrence in the past year
- Match gender, age, BMI, dominant side, training experience, training frequency, Personal best record in 100m with HSI history group
Key exclusion criteria (7 listed)
- Neurological, cardiorespiratory or systemic disorder
- Have low back pain history in the past year
- Scoliosis
- Sacroiliac joint dysfunction
- Complaints of pain on trunk \& lower extremity
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Surface electromyography (Noraxon TeleMyo sEMG System, Noraxon USA Inc, Scottdale, Ariz)
Time frame: Immediately during the experiment
Muscle activation of external oblique, internal oblique, erect spinae, gluteus maximus when sprinting on the treadmill at 40% and 60% maximal speeds
Isometric trunk flexor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)
Time frame: Immediately during the experiment
Isometric muscle strength of trunk flexor is measured with Biodex System 4 Pro™ in sitting position
Isometric trunk extensor muscle strength (Pro 4, Biodex Medical Systems, Inc., Shirley, NY, United States)
Time frame: Immediately during the experiment
Isometric muscle strength of trunk extensor is measured with Biodex System 4 Pro™ in sitting position
Isometric trunk rotator muscle strength (microFET®2 Digital Handheld Dynamometer)
Time frame: Immediately during the experiment
Isometric muscle strength of trunk rotator is measured with microFET in hook-lying position
Trunk flexor muscle endurance
Time frame: Immediately during the experiment
Muscle endurance of trunk flexor is measured with trunk muscle endurance test. It requires subjects to sit on the test bench and place the upper body against a support with an angle of 60˚ from the test bed. Both the knees and hips are flexed to 90˚. The arms are folded across the chest with hands placed on the opposite shoulder and toes are placed under toe straps. Subjects will be instructed to maintain the body position while the supporting wedge is pulled back 10cm to begin the test. The test ends when the upper body falls below the 60˚ angle. The time the subjects maintain will be recorded.
Trunk extensor muscle endurance
Time frame: Immediately during the experiment
Muscle endurance of trunk extensor is measured with Biering-Sorensen test. It requires subjects to lay prone with the lower body fixed to the test bed at the ankles, knees, and hips and the upper body extended in a cantelevered fashion over the edge of the test bench. The test bench surface is approximately 25cm above the surface of the floor. Subjects rest their upper bodies on the floor before the exertion. At the beginning of the exertion the upper limbs are held across the chest with the hands resting on the opposite shoulders, and the upper body is lifted off the floor until the upper torso is horizontal to the floor. Subjects are instructed to maintain the horizontal position as long as possible. The time the subjects maintain will be recorded.
Trunk lateral flexor muscle endurance
Time frame: Immediately during the experiment
Muscle endurance of trunk lateral flexor is measured with side bridge test. It requires subjects to lay on an exercise mat (thickness, 2.5cm) on their sides with legs extended. The top foot is placed in front of the lower foot on the mat for support. Subjects are instructed to support themselves lifting their hips off the mat to maintain a straight line over their full body length, and support themselves on one elbow and their feet. The uninvolved arm is held across the chest with hand placed on the opposite shoulder. The test ends when the hips returns to the exercise mat. The time the subjects maintain will be recorded.
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 18 Oct 2023.
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hamstring Injury, run by National Yang Ming Chiao Tung University at 1 site in Taiwan.
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 3 inclusion and 7 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 18 Oct 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 Taiwan. 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?
Surface electromyography (Noraxon TeleMyo sEMG System, Noraxon USA Inc, Scottdale, Ariz) (time frame: Immediately during the experiment). The study lists 7 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 18 Oct 2023.