Core Muscle EnduranceNCT07031934
Investigation of the Relationships Between Core Muscle Endurance, Pelvic Oscillations and Pelvic Width in Athletes and Sedentaries
An observational study of Core Muscle Endurance and Athlete, run by Gazi University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study was to investigate the relationships between pelvic oscillation, pelvic width and core muscle endurance between healthy athletes and sedentary subjects. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Core Muscle Endurance, Athlete, Sedentary
- How many people
- 114 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 Jun 2025to 7 Dec 2025
- 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 18 to 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: * Athletes registered to sports federations in the cities of Ankara and Kayseri * University students in the cities of Ankara and Kayseri
Who may be able to join
None listed.
Who cannot join
- Chronic pain in the lumbopelvic region
- History of lumbopelvic and coronary surgery
- Having a locomotor system disorder
- Being a disabled athlete or disabled individual
- Systemic or metabolic disease
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Nuh Naci Yazgan University
Kayseri, Kocasinan, 38170
About this study
The aim of this study was to investigate the relationships between pelvic oscillation, pelvic width and core muscle endurance between healthy athletes and sedentary subjects.
Read the detailed description
There are many physical, physiological, psychological and sociological differences between athletes and sedentary individuals. These differences are evident due to the motoric characteristics brought about by the sports they do. While the differences revealed by the studies in the literature are in a relationship among themselves, this has an effect on the sportive performance of the person.
Core muscles are the muscles that provide both stability and mobility of the trunk in which local and global muscles work in coordination. The endurance and strength of the core muscles affect not only trunk movements but also distal extremity movements and functionality. The endurance of the core muscles, which is important for movement and balance in athletes and sedentary individuals, can also be the cause of some injuries when it is deficient.
During gait, the pelvis makes sinusoidal up-and-down movements in the frontal and sagittal planes and rotational movements in the transverse plane. These movements are provided by the local and global muscles surrounding the pelvis and hip joint. Reduction of pelvic oscillations in the normal gait pattern may lead to decreased energy expenditure and increased muscle force production. Pelvic oscillations should be sufficient and pelvic control should be appropriate for walking, running, activities of daily living and sportive performance to be correct and economical. As a result of studies showing that pelvic width has effects on the physical activities of individuals, anatomical anthropometric characteristics of the pelvis also have an effect on energy consumption in athletes and sedentary individuals.
When the literature was reviewed in this direction, no study was found that examined the relationship between core muscle endurance, pelvic swing and pelvic width in athletes and sedentary individuals. In athletes, holistic performance parameters and anthropometric characteristics or adaptations are important for the efficiency of sports. Likewise, in sedentary individuals, these characteristics are important for achieving activities of daily living. Our study is planned to examine the relationships between core muscle endurance, pelvic swing and pelvic width in athletes and sedentary individuals and to make a comparison between these two groups. As a result of the study, this gap in the literature will be filled and the relationship between core muscle endurance, pelvic swing and pelvic width of athletes will be examined and possible differences between athletes and sedentary individuals will be revealed.
- Conditions
- Core Muscle Endurance, Athlete, Sedentary
- Keywords
- core muscle endurance, pelvis width, pelvis oscillation, sedentary, athlete
- Medical subject headings
- Sedentary Behavior
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 |
|---|---|---|
| Athletes Group | group of athlete individuals | |
| Sedentaries Group | group of sedentary individuals |
What is being measured
The primary outcome is the main question the study is designed to answer.
Core Muscle Endurance
Evaluation of core muscle endurance will be performed with the Wall Sit Hold, which have proven to be effective in the literature. In the Wall Sit Hold test, individuals will be asked to stand in a squat position with the hip and knee flexed and the back in full contact with the wall and to lift their right or left foot up and wait. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
Measured: four weeks
Core Muscle Endurance
In the Trunk Flexion Hold test, the individuals will be asked to sit on their hips and extend their upper body to the feet and knees that are lifted off the floor and wait in this position. The holding time will be recorded in seconds. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
Measured: four weeks
Core Muscle Endurance
In the Horizontal Trunk Hold test, individuals will be asked to extend both arms to the side without bending their back and wait in the crawling position. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
Measured: four weeks
Secondary outcomes (2)
Pelvis Width
Pelvic width will be measured with an anthropometric measurement set caliper between the iliac cristae over both thoracentor major and both Sias of the participant lying on the bed on the back. The pelvic width will be recorded in cm without any belt or pants.
Measured: four weeks
Pelvis Oscillations
Pelvic sway assessment will be performed with a device called GYKO, which includes a gyroscope, magnetometer and accelerometer. In this assessment, the individual will be asked to walk normally on flat ground for 10 m after the device is connected to the level of the proc. spinosus of the lumbar 3-5th vertebrae with a waist belt. The device, which is connected to the computer via Bluetooth, will generate data by recording the oscillations of the pelvis in square centimeters (cm2) throughout the walk. It will also record anterior-posterior home medial-lateral oscillations.
Measured: four weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Jun 2025
- Study start25 Jun 2025
- Primary completion30 Jun 2025
- Study completion7 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Core Muscle EnduranceStudies of the same condition, open and under way.
- More trials run by Gazi 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
- 114 participants (actual)
Sponsor and investigators
- Lead sponsor
- Gazi University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Fırat Kara, Gazi University
- Investigators
- Fırat Kara, Phd Student, Principal investigator, Nuh Naci Yazgan University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07031934
- Sponsor's protocol ID
- GAZIU-FTR-FK-002
- Status last verified
- Dec 2025
- First submitted
- 2 Jun 2025
- Last updated
- 24 Dec 2025
- 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 24 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of the Relationships Between Core Muscle Endurance, Pelvic Oscillations and Pelvic Width in Athletes and Sedentaries
- ClinicalTrials.gov ID
- NCT07031934
- Acronym / sponsor ID
- GAZIU-FTR-FK-002
- Conditions
- Core Muscle Endurance, Athlete, Sedentary
- Keywords
- core muscle endurance, pelvis width, pelvis oscillation, sedentary, athlete
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 114 participants (actual)
- Lead sponsor
- Gazi UniversityUniversity, hospital or other
- Study start
- 25 Jun 2025 (actual)
- Primary completion
- 30 Jun 2025 (actual)
- Study completion
- 7 Dec 2025 (actual)
- First posted
- 22 Jun 2025 (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 was to investigate the relationships between pelvic oscillation, pelvic width and core muscle endurance between healthy athletes and sedentary subjects.
Detailed description
There are many physical, physiological, psychological and sociological differences between athletes and sedentary individuals. These differences are evident due to the motoric characteristics brought about by the sports they do. While the differences revealed by the studies in the literature are in a relationship among themselves, this has an effect on the sportive performance of the person.
Core muscles are the muscles that provide both stability and mobility of the trunk in which local and global muscles work in coordination. The endurance and strength of the core muscles affect not only trunk movements but also distal extremity movements and functionality. The endurance of the core muscles, which is important for movement and balance in athletes and sedentary individuals, can also be the cause of some injuries when it is deficient.
During gait, the pelvis makes sinusoidal up-and-down movements in the frontal and sagittal planes and rotational movements in the transverse plane. These movements are provided by the local and global muscles surrounding the pelvis and hip joint. Reduction of pelvic oscillations in the normal gait pattern may lead to decreased energy expenditure and increased muscle force production. Pelvic oscillations should be sufficient and pelvic control should be appropriate for walking, running, activities of daily living and sportive performance to be correct and economical. As a result of studies showing that pelvic width has effects on the physical activities of individuals, anatomical anthropometric characteristics of the pelvis also have an effect on energy consumption in athletes and sedentary individuals.
When the literature was reviewed in this direction, no study was found that examined the relationship between core muscle endurance, pelvic swing and pelvic width in athletes and sedentary individuals. In athletes, holistic performance parameters and anthropometric characteristics or adaptations are important for the efficiency of sports. Likewise, in sedentary individuals, these characteristics are important for achieving activities of daily living. Our study is planned to examine the relationships between core muscle endurance, pelvic swing and pelvic width in athletes and sedentary individuals and to make a comparison between these two groups. As a result of the study, this gap in the literature will be filled and the relationship between core muscle endurance, pelvic swing and pelvic width of athletes will be examined and possible differences between athletes and sedentary individuals will be revealed.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Athletes Group | – | –group of athlete individuals |
| Sedentaries Group | – | –group of sedentary individuals |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- * Athletes registered to sports federations in the cities of Ankara and Kayseri * University students in the cities of Ankara and Kayseri
Key inclusion criteria (0 listed)
Key exclusion criteria (5 listed)
- Chronic pain in the lumbopelvic region
- History of lumbopelvic and coronary surgery
- Having a locomotor system disorder
- Being a disabled athlete or disabled individual
- Systemic or metabolic disease
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
Core Muscle Endurance
Time frame: four weeks
Evaluation of core muscle endurance will be performed with the Wall Sit Hold, which have proven to be effective in the literature. In the Wall Sit Hold test, individuals will be asked to stand in a squat position with the hip and knee flexed and the back in full contact with the wall and to lift their right or left foot up and wait. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
Core Muscle Endurance
Time frame: four weeks
In the Trunk Flexion Hold test, the individuals will be asked to sit on their hips and extend their upper body to the feet and knees that are lifted off the floor and wait in this position. The holding time will be recorded in seconds. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
Core Muscle Endurance
Time frame: four weeks
In the Horizontal Trunk Hold test, individuals will be asked to extend both arms to the side without bending their back and wait in the crawling position. The hold time will be recorded in seconds. 3 trials will be made for each foot and the results will be averaged. The higher the data obtained, the higher the core muscle endurance.
2 secondary outcomes
Pelvis Width
Time frame: four weeks
Pelvis Oscillations
Time frame: four 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 24 Dec 2025.
- 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.
Fırat Kara, Phd Student principal investigator
Nuh Naci Yazgan University
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 Core Muscle Endurance and Athlete, run by Gazi University at 1 site in Turkey (Türkiye).
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 0 inclusion and 5 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 24 Dec 2025. 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 Turkey (Türkiye). 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?
Core Muscle Endurance (time frame: four weeks). The study lists 3 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 24 Dec 2025.