Caecilia Charbonnier1, Alexandre Lädermann2,3,4, Bart Kevelham5, Sylvain Chagué5, Pierre Hoffmeyer4, Nicolas Holzer4. 1. Medical Research Department, Artanim Foundation, 40, chemin du Grand-Puits, 1217, Meyrin, Switzerland. caecilia.charbonnier@artanim.ch. 2. Division of Orthopedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland. 3. Faculty of Medicine, University of Geneva, Geneva, Switzerland. 4. Orthopedics and Trauma Service, University Hospitals of Geneva, Geneva, Switzerland. 5. Medical Research Department, Artanim Foundation, 40, chemin du Grand-Puits, 1217, Meyrin, Switzerland.
Abstract
PURPOSE: Shoulder strength training exercises represent a major component of rehabilitation protocols designed for conservative or postsurgical management of shoulder pathologies. Numerous methods are described for exercising each shoulder muscle or muscle group. Limited information is available to assess potential deleterious effects of individual methods with respect to specific shoulder pathologies. Thus, the goal of this pilot study was to use a patient-specific 3D measurement technique coupling medical imaging and optical motion capture for evaluation of a set of shoulder strength training exercises regarding glenohumeral, labral and subacromial compression, as well as elongation of the rotator cuff muscles. METHODS: One volunteer underwent magnetic resonance imaging (MRI) and motion capture of the shoulder. Motion data from the volunteer were recorded during three passive rehabilitation exercises and twenty-nine strengthening exercises targeting eleven of the most frequently trained shoulder muscles or muscle groups and using four different techniques when available. For each exercise, glenohumeral and labral compression, subacromial space height and rotator cuff muscles elongation were measured on the entire range of motion. RESULTS: Significant differences in glenohumeral, subacromial and labral compressions were observed between sets of exercises targeting individual shoulder muscles. Muscle lengths computed by simulation compared to MRI measurements showed differences of 0-5%. CONCLUSIONS: This study represents the first screening of shoulder strengthening exercises to identify potential deleterious effects on the shoulder joint. Motion capture combined with medical imaging allows for reliable assessment of glenohumeral, labral and subacromial compression, as well as muscle-tendon elongation during shoulder strength training exercises.
PURPOSE: Shoulder strength training exercises represent a major component of rehabilitation protocols designed for conservative or postsurgical management of shoulder pathologies. Numerous methods are described for exercising each shoulder muscle or muscle group. Limited information is available to assess potential deleterious effects of individual methods with respect to specific shoulder pathologies. Thus, the goal of this pilot study was to use a patient-specific 3D measurement technique coupling medical imaging and optical motion capture for evaluation of a set of shoulder strength training exercises regarding glenohumeral, labral and subacromial compression, as well as elongation of the rotator cuff muscles. METHODS: One volunteer underwent magnetic resonance imaging (MRI) and motion capture of the shoulder. Motion data from the volunteer were recorded during three passive rehabilitation exercises and twenty-nine strengthening exercises targeting eleven of the most frequently trained shoulder muscles or muscle groups and using four different techniques when available. For each exercise, glenohumeral and labral compression, subacromial space height and rotator cuff muscles elongation were measured on the entire range of motion. RESULTS: Significant differences in glenohumeral, subacromial and labral compressions were observed between sets of exercises targeting individual shoulder muscles. Muscle lengths computed by simulation compared to MRI measurements showed differences of 0-5%. CONCLUSIONS: This study represents the first screening of shoulder strengthening exercises to identify potential deleterious effects on the shoulder joint. Motion capture combined with medical imaging allows for reliable assessment of glenohumeral, labral and subacromial compression, as well as muscle-tendon elongation during shoulder strength training exercises.
Authors: Caecilia Charbonnier; Victoria B Duthon; Sylvain Chagué; Frank C Kolo; Jacques Ménétrey Journal: Int J Comput Assist Radiol Surg Date: 2019-12-20 Impact factor: 2.924
Authors: Patrick Goetti; Patrick J Denard; Philippe Collin; Mohamed Ibrahim; Pierre Hoffmeyer; Alexandre Lädermann Journal: EFORT Open Rev Date: 2020-09-10