The Effects of Exercise Training on Corticospinal System in Overhead Athletes With Shoulder Impingement Syndrome
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|ClinicalTrials.gov Identifier: NCT04014491|
Recruitment Status : Not yet recruiting
First Posted : July 10, 2019
Last Update Posted : August 2, 2019
|Condition or disease||Intervention/treatment||Phase|
|Shoulder Impingement Syndrome Transcranial Magnetic Stimulation Central Nervous System Biomechanical Phenomena||Procedure: Scapula control exercise Procedure: scapular strengthening exercise Other: No intervention||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||92 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||The Effects of Scapular Control and Strengthening Training on Neuromuscular Control and Corticospinal System in Overhead Athletes With Shoulder Impingement Syndrome|
|Estimated Study Start Date :||July 30, 2019|
|Estimated Primary Completion Date :||July 1, 2022|
|Estimated Study Completion Date :||December 1, 2022|
Experimental: Scapula control exercise
Subjects will perform three exercises with EMG biofeedback and verbal cues. Three exercises are elevation in scapular plane, sidelying external rotation and dynamic hug plus
Procedure: Scapula control exercise
To perform arm elevation in the scapular plane, subjects will be first asked to correct scapular resting posture in sitting with EMG biofeedback. Then the subjects will be instructed to do elevation in the scapular plane, side lying external rotation and dynamic hug plus with control of the scapula by EMG feedback and verbal cues
Experimental: Scapula strengthening exercise
The subjects in the scapular strengthening group will be asked to perform the three exercises the same as scapula control exercise group and with the same number of trials but without any EMG biofeedback and oral cues of movement or posture correction.
Procedure: scapular strengthening exercise
The subjects in the scapular strengthening group will be asked to perform these three exercises the same as scapula control group and with the same number of trials but without any EMG biofeedback and oral cues of movement or posture correction.
Healthy subject group
Healthy subjects will be included to compare the differences in corticospinal system between healthy subjects and subjects with shoulder impingement syndrome, so this group will not receive any treatment.
Other: No intervention
- Neurophysiological measures - Active motor threshold [ Time Frame: Immediately after the intervention ]Active motor threshold (AMT) will be described with the percentage (%) of maximum stimulator output (MSO).
- Neurophysiological measures - Motor evoked potential [ Time Frame: Immediately after the intervention ]Motor evoked potential (MEP) will be described with millivolt (mV).
- Neurophysiological measures - Cortical silent period [ Time Frame: Immediately after the intervention ]Cortical silent period (CSP) will be measured with millisecond (ms).
- Neurophysiological measures - Short interval cortical inhibition [ Time Frame: Immediately after the intervention ]Short interval cortical inhibition (SICI) will be defined as percentage (%) of conditioning responses vs testing responses while the inter-stimulus interval is below 5 ms
- Neurophysiological measures - Intra-cortical facilitation [ Time Frame: Immediately after the intervention ]Intra-cortical facilitation (ICF) will be defined as percentage (%) of conditioning responses vs testing responses while the inter-stimulus interval is above 5 ms
- Scapular kinematics [ Time Frame: Immediately after the intervention ]Scapular kinematics, including anterior/posterior tilt, upward/downward rotation, and internal/external rotation in scapula plan elevation at 30°, 60°, 90°, and 120°, will be calculated and will be described with degree (°).
- Scapular muscles activation [ Time Frame: Immediately after the intervention ]The root mean square of electromyography (EMG) data of the upper trapezius, lower trapezius, and serratus anterior will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %) and calculated over three 30° increments of motion during arm elevation from 30° to 120°, including 30° - 60°, 60° - 90°, and 90° - 120°
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04014491
|Contact: Yin-Liang Lin, PhDemail@example.com|
|Yin-Liang Lin||Not yet recruiting|
|Taipei, Taiwan, 112|
|Contact: Yin-Liang Lin, PhD +886-2-28267288 firstname.lastname@example.org|
|Principal Investigator:||Yin-Liang Lin, PhD||National Yang Ming University|