Scapular DyskinesisNCT05424185
Rate of EMG Rise and Rate of Force Development of Scapular Muscles
An observational study of Scapular Dyskinesis, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
The investigators will clarify rate of electromyography (EMG) rise and rate of force development in overhead athletes on scapular muscles, including upper trapezius, lower trapezius and serratus anterior. The correlation between rate of EMG rise and rate of force development will also be examined. Read more about this study
- Who is it for?
- Ages 20 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Scapular Dyskinesis
- What is being tested?
- different type of scapular dyskinesis
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 40 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Jul 2022to 31 Dec 2022
- 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 20 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Scapular dyskinesis is defined as abnormal scapular position and motion. It can be divided in 4 patterns. It has been reported that overhead athletes have higher prevalence (61%) compare to non-overhead athletes (33%). Additionally, athletes with scapular dyskinesis have 43% greater risk of developing shoulder pain than those without scapular dyskinesis. Due to higher prevalence with greater injury risk, scapular dyskinesis plays the important role of injury process that need to be concerned for the overhead athletes.
Who may be able to join
- Playing overhead sports for at least 1 year.
- Still active in training or competition.
- The frequency of training or game should be at least 2 times per week, 1 hour per time.
Who cannot join
- Subjects with shoulder pain onset due to trauma, a history of shoulder fractures or dislocation, cervical radiculopathy, degenerative joint disease of the shoulder, surgical interventions on the shoulder, or inflammatory arthropathy.
- Visual analog scale (VAS) > 5 during movement in the experiment.
Trial locations and contacts
1 site in 1 country.
Yi-Hsuan Weng, MS contact
About this study
Official title: Rate of EMG Rise and Rate of Force Development of Scapular Muscles in Overhead Athletes With Different Types of Scapular Dyskinesis
The investigators will clarify rate of electromyography (EMG) rise and rate of force development in overhead athletes on scapular muscles, including upper trapezius, lower trapezius and serratus anterior. The correlation between rate of EMG rise and rate of force development will also be examined.
Read the detailed description
The contributing factor of scapular dyskinesis can be bony and joint-related issues, neurologic problems, soft tissue problems. Patient with thoracic kyphosis, pectoralis minor stiffness, long thoracic nerve injury, and so on can lead to scapular dyskinesis and further shoulder dysfunction. During shoulder movement, the neuromuscular control of the scapular muscles also play an important role. Previous studies found that participants with pattern 1 and 2 scapular dyskinesis had lesser lower trapezius (5%, P =.025) and serratus anterior activity (10%, P =.004), and higher upper trapezius activity (14%, P =.01) in pattern 2 participants during arm lowering compared to normal participants. Furthermore, the intervention focus on neuromuscular control can change the recruitment pattern of participants with scapular dyskinesis. Significant increases in activation of the middle and lower trapezius (MT: 4.9 ± 2.4% of the maximal voluntary isometric contraction (MVIC); LT: 10.2 ± 6.8% MVIC, p < 0.0 25) were found with conscious control in 3 exercises among the 3 dyskinesis groups, and increased serratus anterior activation (11.2 ± 4.8% MVIC, p < 0.0 25) was found in the concentric phase of side-lying external rotation in the pattern 1 and 1 + 2 groups. The studies show that the muscle recruitment is highly related to the scapular dyskinesis.
However, there are some limitation in the previous studies which presented the outcome by EMG amplitude. First, no matter with or without intervention, previous studies fail to show difference between groups in some condition. Although, there are some difference in lowering phase, the results fail to show difference in elevation phase and some degree of lowering phase. Second, substantial cancellation of the EMG interference signal can occur. The positive and negative signal will be offset. Last, not only neural effect but also contractile effect will be captured. Contraction type, including concentric, eccentric or isometric, will occur in a movement, so the signal will be affected. As the result, another method to represent neuromuscular effect should be considered.
The rate of EMG rise (RER; Formula: ΔEMG/Δtime) has been used to evaluate the rate of muscle activation in order to account for the neural factors that contribute to rate of force development (RFD; Formula: Δforce/Δtime). The onset (<75 ms) of a rapid contraction indicates a role for neural factors. Previous studies with RER outcome have been conducted to see the effect of pain, aging or training. It has been reported that RER reduce with pain and aging while increase after training, and better sensitivity to distinguish difference than peak EMG amplitude (PEMG). The significant difference is found in both upper trapezius and deltoid for RER but only in upper trapezius for PEMG. However, most of the studies about RER are conducted on lower extremity or female worker and no study conducted on athletes, not to mention athletes with scapular dyskinesis.
The overhead sports are characterized with forced and rapid movement. The more sensitive and functional measurement of RER may detect the difference of overhead athletes with different type scapular dyskinesis. Therefore, the purposes of this study are to compare the RER, PEMG, RFD and peak force on scapular muscles (UT, LT, SA) among different types of scapular dyskinesis at 2 arm elevation angles (30, 90 degree). Additionally, to investigate the correlation between RER and RFD. The investigators hypothesize that overhead athletes with scapular dyskinesis will demonstrate significant lower RER and RFD, and there will be significant positive correlation between RER and RFD.
- Conditions
- Scapular Dyskinesis
- Being tested
- different type of scapular dyskinesis
- Keywords
- overhead athletes, electromyography
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
different type of scapular dyskinesisBehavioural
rapid arm elevation to see the different of EMG rise and force development
| Study group | Role | What they receive |
|---|---|---|
| type 1 scapular dyskinesis | type 1 scapular dyskinesis classified by dyskinesis classification test Receives: Behavioral: different type of scapular dyskinesis | |
| type 2 scapular dyskinesis | type 2 scapular dyskinesis classified by dyskinesis classification test Receives: Behavioral: different type of scapular dyskinesis | |
| type 3 scapular dyskinesis | type 3 scapular dyskinesis classified by dyskinesis classification test Receives: Behavioral: different type of scapular dyskinesis | |
| type 4 scapular dyskinesis | type 4 scapular dyskinesis classified by dyskinesis classification test Receives: Behavioral: different type of scapular dyskinesis |
What is being measured
The primary outcome is the main question the study is designed to answer.
Rate of EMG rise
Surface EMG electrodes (The Ludlow Company LP, Chocopee, MA) were placed after shaving and preparation with alcohol to decrease skin impedance (typically 10 kΩ or less). An impedance meter (Model F-EZM5, Astro-Med Inc., Ri, USA) will be used to measure impedance between the electrodes and skin over the muscle. Bipolar surface EMG electrodes with an interelectrode (center-to-center) distance of 20 mm will be placed upper trapezius, lower trapezius and serratus anterior of the dominant shoulder. Electrodes for upper trapezius were placed midway between acromion and the seventh spinous process of cervical vertebrae. The lower trapezius was palpated obliquely upward and laterally along the line between intersection of the spine of scapula and the seventh spinous process of thoracic vertebrae. Electrodes for serratus anterior was placed anterior to the latissimus dorsi and posterior to pectoralis major. The reference electrode was placed on the ipsilateral clavicle
Measured: Baseline
rate of force development
The force-sensitive measurement system (FlexiForce ELFTM, New Taipei City, Taiwan, R.O.C.) will be used for force detection. It combines three single-point FlexiForce B201 sensors, one handle containing USB-interface electronics, and Windows-compatible software (Figure 2). Three circle sensors (diameter 9.53 mm; thickness 0.203 mm) are able to detect therange of force as low (4.4-111N), medium (111-667N) and, high level (667-4448N), respectively. This ensures that the various force during measurement can be measured by the appropriate sensor. When the sensor detects the force, the software will display the histogram, curve graph, or number of the force detected as the real-time bio-feedback. The sampling rate of the data collection is set at 200Hz.
Measured: Baseline
Secondary outcomes (1)
Posterior displacement of the scapula
The modified scapulometer will be stationed at one side to measure the distance from the root of the spine (ROS) and the inferior angle (INF) of the scapula to the thoracic wall, respectively. Before conducting the test, two anatomic landmarks, ROS and INF, will be identified and marked. Then two parallel landmarks on the same level of the ROS and INF, approximately 1 cm medial to the scapular medial border, will be marked. The first rater slides the digital caliper anteriorly toward the parallel landmark until firm contact. Posterior displacement of the scapula will be recorded by the second rater based on the digital caliper.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jun 2022
- Study start1 Jul 2022 (estimated)
- Primary completion1 Sep 2022 (estimated)
- Study completion31 Dec 2022 (estimated)
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 Scapular DyskinesisStudies of the same condition, open and under way.
- More trials run by National Taiwan University HospitalThe 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 Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Jiu-Jenq Lin, PhD, Principal investigator, National Taiwan University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05424185
- Sponsor's protocol ID
- 202201029RINB
- Status last verified
- Jun 2022
- First submitted
- 14 Jun 2022
- Last updated
- 24 Jun 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
1. Kibler WB, Ludewig PM, McClure PW, Michener LA, Bak K, Sciascia AD. Clinical implications of scapular dyskinesis in shoulder injury: the 2013 consensus statement from the 'Scapular Summit'. Br J Sports Med 2013;47:877-85. 2. Huang TS, Huang HY, Wang TG, Tsai YS, Lin JJ. Comprehensive classification test of scapular dyskinesis: A reliability study. Manual therapy 2015;20:427-32. 3. McClure P, Tate AR, Kareha S, Irwin D, Zlupko E. A clinical method for identifying scapular dyskinesis, part 1: reliability. J Athl Train 2009;44:160-4. 4. Burn MB, McCulloch PC, Lintner DM, Liberman SR, Harris JD. Prevalence of Scapular Dyskinesis in Overhead and Nonoverhead Athletes: A Systematic Review. Orthopaedic journal of sports medicine 2016;4:2325967115627608. 5. Hickey D, Solvig V, Cavalheri V, Harrold M, McKenna L. Scapular dyskinesis increases the risk of future shoulder pain by 43% in asymptomatic athletes: a systematic review and meta-analysis. Br J Sports Med 2018;52:102-10. 6. Longo UG, Risi Ambrogioni L, Berton A, Candela V, Massaroni C, Carnevale A, et al. Scapular Dyskinesis: From Basic Science to Ultimate Treatment. Int J Environ Res Public Health 2020;17. 7. Huang TS, Ou HL, Huang CY, Lin JJ. Specific kinematics and associated muscle activation in individuals with scapular dyskinesis. Journal of shoulder and elbow surgery 2015;24:1227-34. 8. Ou HL, Huang TS, Chen YT, Chen WY, Chang YL, Lu TW, et al. Alterations of scapular kinematics and associated muscle activation specific to symptomatic dyskinesis type after conscious control. Manual therapy 2016;26:97-103. 9. Huang TS, Du WY, Wang TG, Tsai YS, Yang JL, Huang CY, et al. Progressive conscious control of scapular orientation with video feedback has improvement in muscle balance ratio in patients with scapular dyskinesis: a randomized controlled trial. Journal of shoulder and elbow surgery 2018;27:1407-14. 10. Lawrence JH, De Luca CJ. Myoelectric signal versus force relationship in different human muscles. Journal of applied physiology: respiratory, environmental and exercise physiology 1983;54:1653-9. 11. Jay K, Schraefel M, Andersen CH, Ebbesen FS, Christiansen DH, Skotte J, et al. Effect of brief daily resistance training on rapid force development in painful neck and shoulder muscles: randomized controlled trial. Clin Physiol Funct Imaging 2013;33:386-92. 12. Andersen LL, Andersen JL, Suetta C, Kjaer M, Søgaard K, Sjøgaard G. Effect of contrasting physical exercise interventions on rapid force capacity of chronically painful muscles. J Appl Physiol (1985) 2009;107:1413-9. 13. Andersen LL, Holtermann A, Jørgensen MB, Sjøgaard G. Rapid muscle activation and force capacity in conditions of chronic musculoskeletal pain. Clin Biomech (Bristol, Avon) 2008;23:1237-42. 14. Andersen LL, Nielsen PK, Søgaard K, Andersen CH, Skotte J, Sjøgaard G. Torque-EMG-velocity relationship in female workers with chronic neck muscle pain. Journal of biomechanics 2008;41:2029-35. 15. Weon JH, Kwon OY, Cynn HS, Lee WH, Kim TH, Yi CH. Real-time visual feedback can be used to activate scapular upward rotators in people with scapular winging: an experimental study. J Physiother 2011;57:101-7. 16. Alberta FG, ElAttrache NS, Bissell S, Mohr K, Browdy J, Yocum L, et al. The development and validation of a functional assessment tool for the upper extremity in the overhead athlete. The American journal of sports medicine 2010;38:903-11. 17. Oh JH, Kim JY, Limpisvasti O, Lee TQ, Song SH, Kwon KB. Cross-cultural adaptation, validity and reliability of the Korean version of the Kerlan-Jobe Orthopedic Clinic shoulder and elbow score. JSES open access 2017;1:39-44.
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Rate of EMG Rise and Rate of Force Development of Scapular Muscles in Overhead Athletes With Different Types of Scapular Dyskinesis
- ClinicalTrials.gov ID
- NCT05424185
- Acronym / sponsor ID
- 202201029RINB
- Conditions
- Scapular Dyskinesis
- Keywords
- overhead athletes, electromyography
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- 1 Jul 2022 (estimated)
- Primary completion
- 1 Sep 2022 (estimated)
- Study completion
- 31 Dec 2022 (estimated)
- First posted
- 21 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.
The investigators will clarify rate of electromyography (EMG) rise and rate of force development in overhead athletes on scapular muscles, including upper trapezius, lower trapezius and serratus anterior. The correlation between rate of EMG rise and rate of force development will also be examined.
Detailed description
The contributing factor of scapular dyskinesis can be bony and joint-related issues, neurologic problems, soft tissue problems. Patient with thoracic kyphosis, pectoralis minor stiffness, long thoracic nerve injury, and so on can lead to scapular dyskinesis and further shoulder dysfunction. During shoulder movement, the neuromuscular control of the scapular muscles also play an important role. Previous studies found that participants with pattern 1 and 2 scapular dyskinesis had lesser lower trapezius (5%, P =.025) and serratus anterior activity (10%, P =.004), and higher upper trapezius activity (14%, P =.01) in pattern 2 participants during arm lowering compared to normal participants. Furthermore, the intervention focus on neuromuscular control can change the recruitment pattern of participants with scapular dyskinesis. Significant increases in activation of the middle and lower trapezius (MT: 4.9 ± 2.4% of the maximal voluntary isometric contraction (MVIC); LT: 10.2 ± 6.8% MVIC, p < 0.0 25) were found with conscious control in 3 exercises among the 3 dyskinesis groups, and increased serratus anterior activation (11.2 ± 4.8% MVIC, p < 0.0 25) was found in the concentric phase of side-lying external rotation in the pattern 1 and 1 + 2 groups. The studies show that the muscle recruitment is highly related to the scapular dyskinesis.
However, there are some limitation in the previous studies which presented the outcome by EMG amplitude. First, no matter with or without intervention, previous studies fail to show difference between groups in some condition. Although, there are some difference in lowering phase, the results fail to show difference in elevation phase and some degree of lowering phase. Second, substantial cancellation of the EMG interference signal can occur. The positive and negative signal will be offset. Last, not only neural effect but also contractile effect will be captured. Contraction type, including concentric, eccentric or isometric, will occur in a movement, so the signal will be affected. As the result, another method to represent neuromuscular effect should be considered.
The rate of EMG rise (RER; Formula: ΔEMG/Δtime) has been used to evaluate the rate of muscle activation in order to account for the neural factors that contribute to rate of force development (RFD; Formula: Δforce/Δtime). The onset (<75 ms) of a rapid contraction indicates a role for neural factors. Previous studies with RER outcome have been conducted to see the effect of pain, aging or training. It has been reported that RER reduce with pain and aging while increase after training, and better sensitivity to distinguish difference than peak EMG amplitude (PEMG). The significant difference is found in both upper trapezius and deltoid for RER but only in upper trapezius for PEMG. However, most of the studies about RER are conducted on lower extremity or female worker and no study conducted on athletes, not to mention athletes with scapular dyskinesis.
The overhead sports are characterized with forced and rapid movement. The more sensitive and functional measurement of RER may detect the difference of overhead athletes with different type scapular dyskinesis. Therefore, the purposes of this study are to compare the RER, PEMG, RFD and peak force on scapular muscles (UT, LT, SA) among different types of scapular dyskinesis at 2 arm elevation angles (30, 90 degree). Additionally, to investigate the correlation between RER and RFD. The investigators hypothesize that overhead athletes with scapular dyskinesis will demonstrate significant lower RER and RFD, and there will be significant positive correlation between RER and RFD.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| type 1 scapular dyskinesis | – | Behavioral: different type of scapular dyskinesistype 1 scapular dyskinesis classified by dyskinesis classification test |
| type 2 scapular dyskinesis | – | Behavioral: different type of scapular dyskinesistype 2 scapular dyskinesis classified by dyskinesis classification test |
| type 3 scapular dyskinesis | – | Behavioral: different type of scapular dyskinesistype 3 scapular dyskinesis classified by dyskinesis classification test |
| type 4 scapular dyskinesis | – | Behavioral: different type of scapular dyskinesistype 4 scapular dyskinesis classified by dyskinesis classification test |
Who may qualify
- Ages
- 20 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Scapular dyskinesis is defined as abnormal scapular position and motion. It can be divided in 4 patterns. It has been reported that overhead athletes have higher prevalence (61%) compare to non-overhead athletes (33%). Additionally, athletes with scapular dyskinesis have 43% greater risk of developing shoulder pain than those without scapular dyskinesis. Due to higher prevalence with greater injury risk, scapular dyskinesis plays the important role of injury process that need to be concerned for the overhead athletes.
Key inclusion criteria (3 listed)
- Playing overhead sports for at least 1 year.
- Still active in training or competition.
- The frequency of training or game should be at least 2 times per week, 1 hour per time.
Key exclusion criteria (2 listed)
- Subjects with shoulder pain onset due to trauma, a history of shoulder fractures or dislocation, cervical radiculopathy, degenerative joint disease of the shoulder, surgical interventions on the shoulder, or inflammatory arthropathy.
- Visual analog scale (VAS) > 5 during movement in the experiment.
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 |
|---|---|---|
| different type of scapular dyskinesisrapid arm elevation to see the different of EMG rise and force development | Behavioural | type 1 scapular dyskinesis, type 2 scapular dyskinesis, type 3 scapular dyskinesis, type 4 scapular dyskinesis |
Primary outcome
Rate of EMG rise
Time frame: Baseline
Surface EMG electrodes (The Ludlow Company LP, Chocopee, MA) were placed after shaving and preparation with alcohol to decrease skin impedance (typically 10 kΩ or less). An impedance meter (Model F-EZM5, Astro-Med Inc., Ri, USA) will be used to measure impedance between the electrodes and skin over the muscle. Bipolar surface EMG electrodes with an interelectrode (center-to-center) distance of 20 mm will be placed upper trapezius, lower trapezius and serratus anterior of the dominant shoulder. Electrodes for upper trapezius were placed midway between acromion and the seventh spinous process of cervical vertebrae. The lower trapezius was palpated obliquely upward and laterally along the line between intersection of the spine of scapula and the seventh spinous process of thoracic vertebrae. Electrodes for serratus anterior was placed anterior to the latissimus dorsi and posterior to pectoralis major. The reference electrode was placed on the ipsilateral clavicle
rate of force development
Time frame: Baseline
The force-sensitive measurement system (FlexiForce ELFTM, New Taipei City, Taiwan, R.O.C.) will be used for force detection. It combines three single-point FlexiForce B201 sensors, one handle containing USB-interface electronics, and Windows-compatible software (Figure 2). Three circle sensors (diameter 9.53 mm; thickness 0.203 mm) are able to detect therange of force as low (4.4-111N), medium (111-667N) and, high level (667-4448N), respectively. This ensures that the various force during measurement can be measured by the appropriate sensor. When the sensor detects the force, the software will display the histogram, curve graph, or number of the force detected as the real-time bio-feedback. The sampling rate of the data collection is set at 200Hz.
1 secondary outcome
Posterior displacement of the scapula
Time frame: Baseline
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2022.
- Background1. Kibler WB, Ludewig PM, McClure PW, Michener LA, Bak K, Sciascia AD. Clinical implications of scapular dyskinesis in shoulder injury: the 2013 consensus statement from the 'Scapular Summit'. Br J Sports Med 2013;47:877-85. 2. Huang TS, Huang HY, Wang TG, Tsai YS, Lin JJ. Comprehensive classification test of scapular dyskinesis: A reliability study. Manual therapy 2015;20:427-32. 3. McClure P, Tate AR, Kareha S, Irwin D, Zlupko E. A clinical method for identifying scapular dyskinesis, part 1: reliability. J Athl Train 2009;44:160-4. 4. Burn MB, McCulloch PC, Lintner DM, Liberman SR, Harris JD. Prevalence of Scapular Dyskinesis in Overhead and Nonoverhead Athletes: A Systematic Review. Orthopaedic journal of sports medicine 2016;4:2325967115627608. 5. Hickey D, Solvig V, Cavalheri V, Harrold M, McKenna L. Scapular dyskinesis increases the risk of future shoulder pain by 43% in asymptomatic athletes: a systematic review and meta-analysis. Br J Sports Med 2018;52:102-10. 6. Longo UG, Risi Ambrogioni L, Berton A, Candela V, Massaroni C, Carnevale A, et al. Scapular Dyskinesis: From Basic Science to Ultimate Treatment. Int J Environ Res Public Health 2020;17. 7. Huang TS, Ou HL, Huang CY, Lin JJ. Specific kinematics and associated muscle activation in individuals with scapular dyskinesis. Journal of shoulder and elbow surgery 2015;24:1227-34. 8. Ou HL, Huang TS, Chen YT, Chen WY, Chang YL, Lu TW, et al. Alterations of scapular kinematics and associated muscle activation specific to symptomatic dyskinesis type after conscious control. Manual therapy 2016;26:97-103. 9. Huang TS, Du WY, Wang TG, Tsai YS, Yang JL, Huang CY, et al. Progressive conscious control of scapular orientation with video feedback has improvement in muscle balance ratio in patients with scapular dyskinesis: a randomized controlled trial. Journal of shoulder and elbow surgery 2018;27:1407-14. 10. Lawrence JH, De Luca CJ. Myoelectric signal versus force relationship in different human muscles. Journal of applied physiology: respiratory, environmental and exercise physiology 1983;54:1653-9. 11. Jay K, Schraefel M, Andersen CH, Ebbesen FS, Christiansen DH, Skotte J, et al. Effect of brief daily resistance training on rapid force development in painful neck and shoulder muscles: randomized controlled trial. Clin Physiol Funct Imaging 2013;33:386-92. 12. Andersen LL, Andersen JL, Suetta C, Kjaer M, Søgaard K, Sjøgaard G. Effect of contrasting physical exercise interventions on rapid force capacity of chronically painful muscles. J Appl Physiol (1985) 2009;107:1413-9. 13. Andersen LL, Holtermann A, Jørgensen MB, Sjøgaard G. Rapid muscle activation and force capacity in conditions of chronic musculoskeletal pain. Clin Biomech (Bristol, Avon) 2008;23:1237-42. 14. Andersen LL, Nielsen PK, Søgaard K, Andersen CH, Skotte J, Sjøgaard G. Torque-EMG-velocity relationship in female workers with chronic neck muscle pain. Journal of biomechanics 2008;41:2029-35. 15. Weon JH, Kwon OY, Cynn HS, Lee WH, Kim TH, Yi CH. Real-time visual feedback can be used to activate scapular upward rotators in people with scapular winging: an experimental study. J Physiother 2011;57:101-7. 16. Alberta FG, ElAttrache NS, Bissell S, Mohr K, Browdy J, Yocum L, et al. The development and validation of a functional assessment tool for the upper extremity in the overhead athlete. The American journal of sports medicine 2010;38:903-11. 17. Oh JH, Kim JY, Limpisvasti O, Lee TQ, Song SH, Kwon KB. Cross-cultural adaptation, validity and reliability of the Korean version of the Kerlan-Jobe Orthopedic Clinic shoulder and elbow score. JSES open access 2017;1:39-44.
Related trials for Scapular Dyskinesis
Active, not recruiting
Scapular Stabilization Versus Proprioceptive Neuromuscular Facilitation Technique in Scapular Dyskinesis
Scapular Dyskinesis
RecruitingObservational study
Relation Between Swimming Stroke Types And Scapular Dyskinesia In Swimmers: A Cross - Sectional Study
Scapular Dyskinesis, Scapuloshoulder Disorders
Recruiting
Routine Rehabilitation Versus Shock Wave Therapy for Scapular Dyskinesis
Scapular Dyskinesis, Shockwave Therapy
RecruitingObservational study
Study of Early Scapular Dyskinesis
Scapular Dyskinesis
Recruiting
Effects of Motor Control Retraining and Scapular Stabilization Exercises in Females With Scapular Dyskinesia.
Scapular Dyskinesis
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.
Yi-Hsuan Weng, MS contact
Jiu-Jenq Lin, PhD principal investigator
National Taiwan University Hospital
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 Scapular Dyskinesis, run by National Taiwan University Hospital 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 2 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: status not confirmed, as of the sponsor's last update on 24 Jun 2022. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Jiu-Jenq Lin, PhD (02-33668126, jjlin@ntu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Rate of EMG rise (time frame: Baseline). The study lists 2 primary outcomes in all. 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 NCT05424185, 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 24 Jun 2022.