Elite Table Tennis PlayersNCT07446283
Motion and EMG Analysis of the Forehand Topspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players
An observational study of Elite Table Tennis Players, run by National Yang Ming Chiao Tung University at 1 site in Taiwan.
Trial summary
This research will analyze and compare the muscle activation levels, muscle recruitment timing, trunk kinematics, and shoulder joint kinematics between the four forehand strokes and between elite table tennis players with and without shoulder injuries, providing insights for daily training and rehabilitation programs… Read more about this study
- Who is it for?
- Ages 13 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Elite Table Tennis Players
- What is being tested?
- motion capture system, surface electromyography
- Type of treatment
- Medical device
- How many people
- 40 participants
- Where
- 1 siteTaiwan
- Study dates
- 2 Jan 2026to 31 Dec 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 13 to 40 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: Table tennis players
Who may be able to join
- The ages range from 13 to 40 years old
- Competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years
- At least four years of table tennis experience, and train for more than 10 hours per week
Who cannot join
- History of upper limb surgery or fracture
- History of shoulder dislocation
- History of spine injury in the last year
- Systemic autoimmune disease or cancer
- Pregnancy
- Any neurological complications
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
HSIU-LI LIN contact
Taiwan1 site, 1 recruiting
- Recruiting
National Yang Ming Chiao Tung University
Taipei, Taiwan, 112
About this study
Official title: Motion and Electromyographic Analysis of the Forehand Topspin Against Topspin, Forehand Topspin Against Backspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players
This research will analyze and compare the muscle activation levels, muscle recruitment timing, trunk kinematics, and shoulder joint kinematics between the four forehand strokes and between elite table tennis players with and without shoulder injuries, providing insights for daily training and rehabilitation programs to reduce the occurrence of sports injuries.
Read the detailed description
The study participants will be elite table tennis players aged between 13 and 40. Participants must have competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years and have at least four years of table tennis experience, and train for more than 10 hours per week.
The study involves four types of forehand strokes: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
- Conditions
- Elite Table Tennis Players
- Being tested
- motion capture system, surface electromyography
- Keywords
- elite table tennis players, shoulder electromyography, trunk kinematics, trunk electromyography
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
motion capture system, surface electromyographyDevice
forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
| Study group | Role | What they receive |
|---|---|---|
| table tennis players (healthy group) | elite table tennis players without shoulder pain Receives: Device: motion capture system, surface electromyography | |
| table tennis players (shoulder pain group) | elite table tennis players with shoulder pain Receives: Device: motion capture system, surface electromyography |
What is being measured
The primary outcome is the main question the study is designed to answer.
Trunk muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
The root mean square of electromyography (EMG) data of bilateral erector spinae and bilateral abdominal external oblique will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %)
Measured: Immediately during the experiment
Trunk kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Trunk kinematics, including flexion, extension, lateral flexion and rotation, were measured in degrees (°) across four conditions: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
Measured: Immediately during the experiment
Upper limbs muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
The root mean square of electromyography (EMG) data of the biceps brachii, triceps brachii, anterior deltoid, and pectoralis Major will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %) and calculated over forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
Measured: Immediately during the experiment
Secondary outcomes (7)
Trunk mobility
Range of motion of the thoracolumbar spine, described with degrees (°).
Measured: Immediately during the experiment
Shoulder mobility
Range of motion of the glenohumeral joint, described with degrees (°).
Measured: Immediately during the experiment
Shoulder motor control
A clinical assessment of movement quality during shoulder flexion, abduction, external rotation, and internal rotation
Measured: Immediately during the experiment
Trunk motor control
A clinical assessment of movement quality during trunk rotation
Measured: Immediately during the experiment
Shoulder kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Shoulder kinematics, including flexion, abduction, horizontal adduction and horizontal adduction, were measured in degrees (°) across four conditions: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
Measured: Immediately during the experiment
Trunk muscle strength
Isometric muscle strength of the erector spinae and external oblique abdominal muscles will be evaluated using a hand-held dynamometer (MicroFET2). Data will be expressed in newton (N).
Measured: Immediately during the experiment
Shoulder muscle strength
Isometric muscle strength of the biceps brachii, triceps brachii, anterior deltoid and pectoralis major muscles will be evaluated using a hand-held dynamometer (MicroFET2). Data will be expressed in newton (N).
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 posted3 Mar 2026
- Study start2 Jan 2026
- Primary completion31 Aug 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Elite Table Tennis PlayersStudies 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
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Yang Ming Chiao Tung University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yin-Liang Lin, National Yang Ming Chiao Tung University
- Investigators
- YIN-LIANG LIN, Principal investigator, National Yang Ming Chiao Tung University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07446283
- Sponsor's protocol ID
- NYCU114030AF
- Status last verified
- Jan 2026
- First submitted
- 25 Feb 2026
- Last updated
- 3 Apr 2026
- Results posted
- 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 3 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Motion and Electromyographic Analysis of the Forehand Topspin Against Topspin, Forehand Topspin Against Backspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players
- ClinicalTrials.gov ID
- NCT07446283
- Acronym / sponsor ID
- NYCU114030AF
- Conditions
- Elite Table Tennis Players
- Keywords
- elite table tennis players, shoulder electromyography, trunk kinematics, trunk electromyography
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- National Yang Ming Chiao Tung UniversityUniversity, hospital or other
- Study start
- 2 Jan 2026 (actual)
- Primary completion
- 31 Aug 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 3 Mar 2026 (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 will analyze and compare the muscle activation levels, muscle recruitment timing, trunk kinematics, and shoulder joint kinematics between the four forehand strokes and between elite table tennis players with and without shoulder injuries, providing insights for daily training and rehabilitation programs to reduce the occurrence of sports injuries.
Detailed description
The study participants will be elite table tennis players aged between 13 and 40. Participants must have competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years and have at least four years of table tennis experience, and train for more than 10 hours per week.
The study involves four types of forehand strokes: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| table tennis players (healthy group) | – | Device: motion capture system, surface electromyographyelite table tennis players without shoulder pain |
| table tennis players (shoulder pain group) | – | Device: motion capture system, surface electromyographyelite table tennis players with shoulder pain |
Who may qualify
- Ages
- 13 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Table tennis players
Key inclusion criteria (3 listed)
- The ages range from 13 to 40 years old
- Competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years
- At least four years of table tennis experience, and train for more than 10 hours per week
Key exclusion criteria (6 listed)
- History of upper limb surgery or fracture
- History of shoulder dislocation
- History of spine injury in the last year
- Systemic autoimmune disease or cancer
- Pregnancy
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 |
|---|---|---|
| motion capture system, surface electromyographyforehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack | Device | table tennis players (healthy group), table tennis players (shoulder pain group) |
Primary outcome
Trunk muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Time frame: Immediately during the experiment
The root mean square of electromyography (EMG) data of bilateral erector spinae and bilateral abdominal external oblique will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %)
Trunk kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Time frame: Immediately during the experiment
Trunk kinematics, including flexion, extension, lateral flexion and rotation, were measured in degrees (°) across four conditions: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
Upper limbs muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Time frame: Immediately during the experiment
The root mean square of electromyography (EMG) data of the biceps brachii, triceps brachii, anterior deltoid, and pectoralis Major will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %) and calculated over forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.
7 secondary outcomes
Trunk mobility
Time frame: Immediately during the experiment
Shoulder mobility
Time frame: Immediately during the experiment
Shoulder motor control
Time frame: Immediately during the experiment
Trunk motor control
Time frame: Immediately during the experiment
Shoulder kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack
Time frame: Immediately during the experiment
Trunk muscle strength
Time frame: Immediately during the experiment
Shoulder muscle strength
Time frame: Immediately during the experiment
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Apr 2026.
- Individual participant dataSharing planned: No
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.
HSIU-LI LIN contact
YIN-LIANG LIN principal investigator
National Yang Ming Chiao Tung 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 Elite Table Tennis Players, 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 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: looking for participants now, as of the sponsor's last update on 3 Apr 2026. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact YIN-LIANG LIN (+886-2-28267288, yllin1020@nycu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Trunk muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack (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 3 Apr 2026.