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| ID | Type | Description | Link |
|---|---|---|---|
| EK22-201-1022 | Other Identifier | Ethics Committee Vienna |
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| Name | Class |
|---|---|
| Austrian Research Group for Regenerative and Orthopedic Medicine | OTHER |
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The successful application of treatment protocols using motion-triggered neuromuscular electrical stimulation (NMES) for treatment-resistant functional posterior shoulder instability was recently demonstrated. The purpose of this study is to evaluate the concept of a motion-triggered NMES training protocol through objective clinical outcome parameters and its impact on external rotational (ER) shoulder strength and throwing velocity in healthy, elite-level handball players.
The aim of this study is to evaluate the concept of a motion-triggered NMES training protocol through objective clinical outcome parameters and its impact on external rotational (ER) shoulder strength and throwing velocity in healthy, elite-level handball players. It is hypothesized that a 6-week motion-triggered NMES shoulder strengthening training protocol in elite-level handball players would lead to an increase in throwing velocity due to an improved motor ability and ER shoulder strength.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Non-NMES control group | Active Comparator | Subjects of the control group undergo a conventional standardized strength training program (3x/week, 30 minutes for 6 weeks) with concentric, eccentric, and functional training exercises. |
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| NMES group | Experimental | Experimental group subjects undergo a motion-triggered NMES shoulder strengthening training program (3x/week, 30 minutes for 6 weeks) using the Shoulder Pacemaker (NCS Lab Srl, Modena, Italy), a motion activated stimulation device to strengthen muscular disbalances. This is accomplished through varying neuromuscular electrical stimulation intensity based on the angle of motion of the arm producing subtetanic contraction and provoking supraspinal neural adaptations. Electrode placement: electrode 1, inferior to the scapular spine (infraspinatus, teres minor, + posterior deltoid); electrode 2, medial to the medial scapula border (lower trapezius + rhomboids) . Sets x repetitions: 3x20; Levels: Level 1-3; Exercise 1: L1: Supported row, L2: Front raises in 45°, L3 Front raises (thumbs up); Exercise 2: L1: Resisted front raises, L2: Crossbody resisted raises, L3: Crossbody 'forehand swing'; Exercise 3: L1: Rear dealt fly, L2: Single arm resisted row, L3: Underhand serve |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Motion-triggered NMES training protocol | Other | Experimental group subjects undergo a motion-triggered NMES shoulder strengthening training program (3x/week, 30 minutes for 6 weeks) using the Shoulder Pacemaker (NCS Lab Srl, Modena, Italy), a motion activated stimulation device to strengthen muscular disbalances. This is accomplished through varying neuromuscular electrical stimulation intensity based on the angle of motion of the arm producing subtetanic contraction and provoking supraspinal neural adaptations. Electrode placement: electrode 1, inferior to the scapular spine (infraspinatus, teres minor, + posterior deltoid); electrode 2, medial to the medial scapula border (lower trapezius + rhomboids) . Sets x repetitions: 3x20 Levels: Level 1-3; Exercise 1: L1: Supported row, L2: Front raises in 45°, L3 Front raises (thumbs up) Exercise 2: L1: Resisted front raises, L2: Crossbody resisted raises, L3: Crossbody; forehand swing; Exercise 3: L1: Rear dealt fly, L2: Single arm resisted row, L3: Underhand volleyball |
| Measure | Description | Time Frame |
|---|---|---|
| Throwing velocity (km*h-1) | the difference in throwing velocity (km*h-1) from baseline to 6-week post-intervention follow-up. | Baseline to 6-week post-intervention follow-up. |
| Measure | Description | Time Frame |
|---|---|---|
| Isometric hand-held dynamometer (HHD) ER and internal rotation (IR) maximal shoulder strength | Secondary outcome was the difference in isometric hand-held dynamometer (HHD) ER and internal rotation (IR) maximal shoulder strength at final follow-up. | Baseline to 6-week post-intervention follow-up |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sportorthopädie Zentrum | Vienna | 11190 | Austria |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37870503 | Result | Moroder P, Karpinski K, Akgun D, Danzinger V, Gerhardt C, Patzer T, Tauber M, Wellmann M, Scheibel M, Boileau P, Lambert S, Porcellini G, Audige L. Neuromuscular Electrical Stimulation-Enhanced Physical Therapist Intervention for Functional Posterior Shoulder Instability (Type B1): A Multicenter Randomized Controlled Trial. Phys Ther. 2024 Jan 1;104(1):pzad145. doi: 10.1093/ptj/pzad145. | |
| 31378683 |
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Study group allocation is performed in a randomized and examiner-blinded fashion.
All study authors and examiners are blinded to the group allocation until completion of data analysis.
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| Non-Motion-triggered NMES training protocol | Other | Arm Description: Subjects of the control group undergo a conventional standardized strength training program (3x/week, 30 minutes for 6 weeks) with concentric, eccentric, and functional training exercises. |
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| Result |
| Moroder P, Danzinger V, Maziak N, Plachel F, Pauly S, Scheibel M, Minkus M. Characteristics of functional shoulder instability. J Shoulder Elbow Surg. 2020 Jan;29(1):68-78. doi: 10.1016/j.jse.2019.05.025. Epub 2019 Aug 1. |
| 32667266 | Result | Moroder P, Plachel F, Van-Vliet H, Adamczewski C, Danzinger V. Shoulder-Pacemaker Treatment Concept for Posterior Positional Functional Shoulder Instability: A Prospective Clinical Trial. Am J Sports Med. 2020 Jul;48(9):2097-2104. doi: 10.1177/0363546520933841. |
| ID | Term |
|---|---|
| D012783 | Shoulder Dislocation |
| ID | Term |
|---|---|
| D004204 | Joint Dislocations |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D014947 | Wounds and Injuries |
| D000070599 | Shoulder Injuries |
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