Biomechanical PhenomenaNCT05439122
Kinematics and Muscle Performance of the Trunk and Shoulder in Volleyball Players With Subacromial Impingement Syndrome
An observational study of Biomechanical Phenomena, run by Yi-Fen Shih at 1 site in Taiwan.
Trial summary
Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Biomechanical Phenomena
- How many people
- 40 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Jan 2023to 20 Nov 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 18 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: * Volleyball players with more than 2 years' experience on a collegiate team. * Volleyball players have been trained by professional coach over half a year. * Playing or training for volleyball over 8 hours per week.
Who may be able to join
- Asymptomatic group:
- The asymptomatic group has to present no history of pain or dysfunction on the shoulder and/or neck in past 6 months.
- Subacromial impingement syndrome group:
- Occurrence of shoulder pain that lasted more than 3 months and was related to a spiking movement.
- Present impingement symptoms as a combination of three or more positive signs: Neer test, Hawkins Kennedy test, Jobe test, Painful arc test, Resisted shoulder ER test
Who cannot join
- Cannot perform spiking movement due to shoulder pain.
- Acute shoulder injury at the time of recruitment or shoulder structural lesion, including hypo/hypermobility, or abnormality.
- History of surgery and fracture in the upper and lower limbs or trunk.
- History of pain in the lower limbs and trunk in the last 3 months.
- Neurological or cardio respiratory disorders.
- Receiving any intervention for the shoulder pain including medication, injection, or general physical therapy during the previous 3 months.
Trial locations and contacts
1 site in 1 country.
About this study
Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Although many studies have revealed alterations in the function, morphology and biomechanics of the shoulder complex in volleyball players with shoulder pain, some researchers suggested that a smooth energy transfer from the axial skeleton, through the shoulder complex, to the arm and hand is crucial for overhead sports performance and injury prevention, with little evidence showing the link between trunk muscle performance and shoulder pain in volleyball players.
Therefore, the main purposes of present study are (1) to compare the trunk muscle performance (muscle strength, power and endurance) in volleyball players with and without subacromial impingement syndrome (SIS); (2) to compare trunk and shoulder muscles activity during spiking in volleyball players with and without SIS.
Read the detailed description
Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Although many studies have revealed alterations in the function, morphology and biomechanics of the shoulder complex in volleyball players with shoulder pain, some researchers suggested that a smooth energy transfer from the axial skeleton, through the shoulder complex, to the arm and hand is crucial for overhead sports performance and injury prevention, with little evidence showing the link between trunk muscle performance and shoulder pain in volleyball players.
Therefore, the main purposes of present study are (1) to compare the trunk muscle performance (muscle strength, power and endurance) in volleyball players with and without subacromial impingement syndrome (SIS); (2) to compare trunk and shoulder muscles activity during spiking in volleyball players with and without SIS.
We hypothesize that volleyball players with SIS will change in trunk muscle performance and in trunk and shoulder muscles activity during spiking.
This is a cross-sectional case-control exploratory study.The investigators plan to recruit 35 volleyball players with SIS and 35 age, gender, experience matched healthy players in each group, totally 70 volleyball players in this study. Surface electromyography (sEMG) (Noraxon, USA) will be used to collect trunk and shoulder muscles activity during spiking. The kinematics were recorded using the electromagnetic motion tracking system (LIBERTY™). Isokinetic dynamometer (Biodex Multi-Joint System 4 Pro) and (BTE Primus RS) will be used to measure trunk and shoulder muscles torque and power at 60°/s and 180°/s in trunk and 90°/s, 180°/s and 240°/s in shoulder. Flexor, extensor and lateral flexor endurance tests will be used to assess trunk muscles endurance.
SPSS software (version 24.0) will be used to analyze data. The Independent t test or Chi square test will be used to compare demographic data. The Independent two-sample t test will be used to examine group differences in all outcome measures with the significance level setting at 0.05.
- Conditions
- Biomechanical Phenomena
- Keywords
- Subacromial impingement, muscle performance, volleyball players
- Medical subject headings
- Shoulder Impingement Syndrome
What is being measured
The primary outcome is the main question the study is designed to answer.
Muscle strength and power of trunk and shoulder
The investigator will use isokinetic dynamometer (Biodex Multi-Joint System 4 Pro) and (BTE Primus RS) to measure trunk and shoulder muscles torque and power. Trunk flexion, extension and bilateral rotations will be measured at 60°/s and 180°/s. Shoulder external, internal, horizontal adduction and horizontal abduction will be measured at 90°/s, 180°/s and 240°/s.
Measured: Immediately during the experiment
Trunk and shoulder muscle activities and kinematics during volleyball spiking
The investigator will place surface electromyography (sEMG) (Noraxon, USA) on subjects' bilateral external oblique abdominis, erector spinaes and dominated side of lower trapezius, upper trapezius, serretus anterior and infraspinatus to record muscle activities during spiking. The investigator will also use the electromagnetic motion tracking system (LIBERTY™) to record the kinematics of trunk and shoulder during spiking.
Measured: Immediately during the experiment
Muscle endurance of trunk and shoulder
The subjects will perform trunk flexor, extensor and lateral flexor endurance tests with fixation of lower extremities. The subjects will be asked to hold in a specific position as longer as possible until they quit or fall into wrong position. The holding time will be their score.
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 posted30 Jun 2022
- Study start1 Jan 2023
- Primary completion1 Aug 2023
- Study completion20 Nov 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Biomechanical PhenomenaStudies 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
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Yi-Fen Shih
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Yi-Fen Shih, National Yang Ming Chiao Tung University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05439122
- Sponsor's protocol ID
- YM111061E
- Status last verified
- Nov 2023
- First submitted
- 23 Jun 2022
- Last updated
- 21 Nov 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 21 Nov 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Kinematics and Muscle Performance of the Trunk and Shoulder in Volleyball Players With Subacromial Impingement Syndrome
- ClinicalTrials.gov ID
- NCT05439122
- Acronym / sponsor ID
- YM111061E
- Conditions
- Biomechanical Phenomena
- Keywords
- Subacromial impingement, muscle performance, volleyball players
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Yi-Fen ShihUniversity, hospital or other
- Study start
- 1 Jan 2023 (actual)
- Primary completion
- 1 Aug 2023 (actual)
- Study completion
- 20 Nov 2023 (actual)
- First posted
- 30 Jun 2022 (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.
Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Although many studies have revealed alterations in the function, morphology and biomechanics of the shoulder complex in volleyball players with shoulder pain, some researchers suggested that a smooth energy transfer from the axial skeleton, through the shoulder complex, to the arm and hand is crucial for overhead sports performance and injury prevention, with little evidence showing the link between trunk muscle performance and shoulder pain in volleyball players.
Therefore, the main purposes of present study are (1) to compare the trunk muscle performance (muscle strength, power and endurance) in volleyball players with and without subacromial impingement syndrome (SIS); (2) to compare trunk and shoulder muscles activity during spiking in volleyball players with and without SIS.
Detailed description
Volleyball players repetitively place the arm into extreme positions, and thus expose the athletes' shoulders to a large load and increase the risk of injuries. The shoulder complex is identified as one of the most injured joints in volleyball sports. Although many studies have revealed alterations in the function, morphology and biomechanics of the shoulder complex in volleyball players with shoulder pain, some researchers suggested that a smooth energy transfer from the axial skeleton, through the shoulder complex, to the arm and hand is crucial for overhead sports performance and injury prevention, with little evidence showing the link between trunk muscle performance and shoulder pain in volleyball players.
Therefore, the main purposes of present study are (1) to compare the trunk muscle performance (muscle strength, power and endurance) in volleyball players with and without subacromial impingement syndrome (SIS); (2) to compare trunk and shoulder muscles activity during spiking in volleyball players with and without SIS.
We hypothesize that volleyball players with SIS will change in trunk muscle performance and in trunk and shoulder muscles activity during spiking.
This is a cross-sectional case-control exploratory study.The investigators plan to recruit 35 volleyball players with SIS and 35 age, gender, experience matched healthy players in each group, totally 70 volleyball players in this study. Surface electromyography (sEMG) (Noraxon, USA) will be used to collect trunk and shoulder muscles activity during spiking. The kinematics were recorded using the electromagnetic motion tracking system (LIBERTY™). Isokinetic dynamometer (Biodex Multi-Joint System 4 Pro) and (BTE Primus RS) will be used to measure trunk and shoulder muscles torque and power at 60°/s and 180°/s in trunk and 90°/s, 180°/s and 240°/s in shoulder. Flexor, extensor and lateral flexor endurance tests will be used to assess trunk muscles endurance.
SPSS software (version 24.0) will be used to analyze data. The Independent t test or Chi square test will be used to compare demographic data. The Independent two-sample t test will be used to examine group differences in all outcome measures with the significance level setting at 0.05.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- * Volleyball players with more than 2 years' experience on a collegiate team. * Volleyball players have been trained by professional coach over half a year. * Playing or training for volleyball over 8 hours per week.
Key inclusion criteria (5 listed)
- The asymptomatic group has to present no history of pain or dysfunction on the shoulder and/or neck in past 6 months.
- Occurrence of shoulder pain that lasted more than 3 months and was related to a spiking movement.
- Present impingement symptoms as a combination of three or more positive signs: Neer test, Hawkins Kennedy test, Jobe test, Painful arc test, Resisted shoulder ER test
Key exclusion criteria (6 listed)
- Cannot perform spiking movement due to shoulder pain.
- Acute shoulder injury at the time of recruitment or shoulder structural lesion, including hypo/hypermobility, or abnormality.
- History of surgery and fracture in the upper and lower limbs or trunk.
- History of pain in the lower limbs and trunk in the last 3 months.
- Neurological or cardio respiratory disorders.
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
Muscle strength and power of trunk and shoulder
Time frame: Immediately during the experiment
The investigator will use isokinetic dynamometer (Biodex Multi-Joint System 4 Pro) and (BTE Primus RS) to measure trunk and shoulder muscles torque and power. Trunk flexion, extension and bilateral rotations will be measured at 60°/s and 180°/s. Shoulder external, internal, horizontal adduction and horizontal abduction will be measured at 90°/s, 180°/s and 240°/s.
Trunk and shoulder muscle activities and kinematics during volleyball spiking
Time frame: Immediately during the experiment
The investigator will place surface electromyography (sEMG) (Noraxon, USA) on subjects' bilateral external oblique abdominis, erector spinaes and dominated side of lower trapezius, upper trapezius, serretus anterior and infraspinatus to record muscle activities during spiking. The investigator will also use the electromagnetic motion tracking system (LIBERTY™) to record the kinematics of trunk and shoulder during spiking.
Muscle endurance of trunk and shoulder
Time frame: Immediately during the experiment
The subjects will perform trunk flexor, extensor and lateral flexor endurance tests with fixation of lower extremities. The subjects will be asked to hold in a specific position as longer as possible until they quit or fall into wrong position. The holding time will be their score.
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 21 Nov 2023.
- Individual participant dataSharing planned: Undecided
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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 Biomechanical Phenomena, run by Yi-Fen Shih 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 5 inclusion and 6 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 21 Nov 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?
Muscle strength and power of trunk and shoulder (time frame: Immediately during the experiment). 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 21 Nov 2023.