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Shoulder strengthening exercises adapted to specific shoulder pathologies can be selected using new simulation
Caecilia Charbonnier1, Alexandre Lädermann2,3,4, Bart Kevelham5
1Medical Research Department, Artanim Foundation, 40, chemin du Grand-Puits, 1217, Meyrin, Switzerland. caecilia.charbonnier@artanim.ch.
International Journal of Computer Assisted Radiology and Surgery
|September 16, 2017
Summary
This study used 3D imaging and motion capture to assess shoulder exercises, finding significant differences in joint compression and muscle elongation. This helps identify potentially harmful movements during shoulder rehabilitation.
Area of Science:
- Biomechanics
- Rehabilitation Medicine
- Medical Imaging
Background:
- Shoulder strength training is crucial for managing shoulder pathologies.
- Limited data exists on the adverse effects of specific exercises on shoulder structures.
Purpose of the Study:
- To evaluate shoulder strength training exercises using a patient-specific 3D measurement technique.
- To assess glenohumeral, labral, and subacromial compression, and rotator cuff muscle elongation.
Main Methods:
- Combined magnetic resonance imaging (MRI) and optical motion capture on one volunteer.
- Recorded motion data during passive and active strengthening exercises targeting major shoulder muscles.
- Measured joint compression and muscle elongation across the full range of motion.
Main Results:
- Observed significant variations in glenohumeral, subacromial, and labral compressions among different exercises.
- Simulated muscle lengths showed a 0-5% difference compared to MRI measurements.
Conclusions:
- This pilot study is the first to screen shoulder strengthening exercises for potential joint harm.
- The combined imaging and motion capture approach reliably assesses joint compression and muscle-tendon elongation during training.
