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Scapular kinematics

Michel J Bekker, Riemer J K Vegter, Jan W van der Scheer, Johanneke Hartog, Sonja de Groot, Wiebe de Vries, Ursina Arnet, Lucas H V van der Woude, Dirkjan H E J Veeger
BACKGROUND: Altered scapular kinematics have been associated with shoulder pain and functional limitations. To understand kinematics in persons with spinal cord injury during manual handrim wheelchair propulsion, a description of normal scapular behaviour in able-bodied persons during this specific task is a prerequisite for accurate interpretation. The primary aim of this study is to describe scapular kinematics in able-bodied persons during manual wheelchair propulsion. METHODS: Sixteen able-bodied, novice wheelchair users without shoulder complaints participated in the study...
March 14, 2018: Clinical Biomechanics
Patricia Dayrell Neiva, Letícia Paiva Franco, Renata Noce Kirkwood, Helena Gonçalves Becker
The clinical decision for surgical treatment of children diagnosed with mouth breathing depends on the percentage of mechanical obstruction correlated with exacerbation of upper respiratory tract infections and systemic changes. The benefits of adenotonsillectomy include changes in the nasopharyngeal space, the mandibular plane and myofunctional alterations. Post-adenotonsilectomy postural benefits have not yet been described. OBJECTIVES: To investigate the kinematics of the shoulder girdle, cervical and thoracic spine in children with mouth breathing before and after adenotonsillectomy...
April 2018: International Journal of Pediatric Otorhinolaryngology
Jun Umehara, Ken Kusano, Masatoshi Nakamura, Katsuyuki Morishita, Satoru Nishishita, Hiroki Tanaka, Itsuroh Shimizu, Noriaki Ichihashi
BACKGROUND: Although the serratus anterior muscle has an important role in scapular movement, no study to date has investigated the effect of serratus anterior fatigue on scapular kinematics and shoulder muscle activity. The purpose of this study was to clarify the effect of serratus anterior fatigue on scapular movement and shoulder muscle activity. METHODS: The study participants were 16 healthy men. Electrical muscle stimulation was used to fatigue the serratus anterior muscle...
February 23, 2018: Journal of Shoulder and Elbow Surgery
Eugene Kim, Seunghee Lee, Hwa-Jae Jeong, Jai Hyung Park, Se-Jin Park, Jaewook Lee, Woosub Kim, Hee Jin Park, So Yeon Lee, Tsuyoshi Murase, Kazuomi Sugamoto, Sumika Ikemoto
BACKGROUND: The purpose of this study is to analyze the 3-dimensional scapular dyskinesis and the kinematics of a hook plate relative to the acromion after hook-plated acromioclavicular dislocation in vivo. Reported complications of acromioclavicular reduction using a hook plate include subacromial erosion and impingement. However, there are few reports of the 3-dimensional kinematics of the hook and scapula after the aforementioned surgical procedure. METHODS: We studied 15 cases of acromioclavicular dislocation treated with a hook plate and 15 contralateral normal shoulders using computed tomography in the neutral and full forward flexion positions...
February 13, 2018: Journal of Shoulder and Elbow Surgery
Yannick Delpierre, Michel Ritz, Cyril Garnier
BACKGROUND: In case of people suffering from chronic low back pain, specific movements of the hip, pelvis, and trunk are associated with pain. Comparing range of motion measurements for multiple planes and from different segments and lines in reference to those of healthy individuals seems interesting but present interpretations challenge in relation to important number of variables and correlation with clinical data. METHODS: The proposed index is based on using principal component analysis to quantify differences in trunk mobility between patients with chronic low back pain and a control group...
January 24, 2018: Clinical Biomechanics
Martin B Warner, David Wilson, Markus O Heller, Dan Wood, Peter Worsley, Sarah Mottram, Nick Webborn, DirkJan Veeger, Mark Batt
BACKGROUND: Participating in wheelchair tennis increases the demands placed on the shoulder and could increase the risk of developing shoulder pain and injury that might be associated with differences in scapular kinematics. The aim of the study was to examine the presence of shoulder pain and scapular kinematics in professional wheelchair tennis players. METHOD: Scapular kinematics were obtained in 11 professional wheelchair tennis players, 16 people with shoulder impingement and 16 people without shoulder impingement during humeral elevation and lowering...
January 29, 2018: Clinical Biomechanics
Yi-Fen Shih, Ya-Fang Lee, Wen-Yin Chen
CONTEXT: Scapular proprioception is a key concern in managing shoulder impingement syndrome (SIS). However, no study has examined the effect of elastic taping on scapular proprioception performance. OBJECTIVE: To investigate the immediate effect of kinesiology taping on scapular reposition accuracy, kinematics and muscle activation in individuals with shoulder impingement syndrome. DESIGN: Randomized controlled study. SETTING: Musculoskeletal laboratory, National Yang-Ming University, Taiwan...
January 24, 2018: Journal of Sport Rehabilitation
Hillary A Plummer, Federico Pozzi, Lori A Michener
For kinematic studies of the shoulder, electromagnetic sensors are commonly placed on the humerus, scapula, and trunk. The trunk sensor is used to describe humeral and scapular kinematics with respect to the trunk. There are two common trunk sensor placements, the sternum or third thoracic vertebrae (T3). It is currently unclear if placement of the trunk sensor affects kinematics, making it difficult to compare data across studies. The purpose of this study was to compare two trunk sensor placements (T3 and sternum) on trunk and scapular kinematics during arm elevation...
December 24, 2017: Journal of Biomechanics
Elif Turgut, Filiz Fatma Colakoglu, Gul Baltaci
Adult overhead athletes without a history of shoulder injury show scapular adaptations. There is a lack of detailed assessment of scapular kinematics in junior overhead athletes. This study aims to investigate three-dimensional scapular kinematics in junior overhead athletes. We recruited a total of 20 junior tennis players and 20 healthy children without participation in any overhead sports in this study. Bilateral scapular kinematic data were recorded using an electromagnetic tracking device for scapular plane glenohumeral elevation...
January 16, 2018: Sports Biomechanics
Naoya Kozono, Takamitsu Okada, Naohide Takeuchi, Satoshi Hamai, Hidehiko Higaki, Takeshi Shimoto, Satoru Ikebe, Hirotaka Gondo, Yoshitaka Nakanishi, Takahiro Senju, Yasuharu Nakashima
BACKGROUND: No clear trend has emerged from the literature regarding three-dimensional (3D) translations of the humerus relative to the scapula in shoulders with rotator cuff tears (RCTs). The purpose of this study was to evaluate the kinematics of RCT shoulders using 3D-to-two-dimensional (2D) model-to-image registration techniques. METHODS: Dynamic glenohumeral kinematics during scapular plane abduction and axial rotation were analyzed in 11 RCT patients and 10 healthy control subjects...
January 11, 2018: Journal of Orthopaedic Surgery and Research
Felipe S Serenza, Anamaria S Oliveira, Bruno L S Bedo, Fàbio P Mariano, Rodrigo Aquino, Martin Warner, Paulo R P Santiago
OBJECTIVES: To compare the kinematics and electromyography of the periscapular muscles in swimmers before and after a 3-min maximal effort test. PARTICIPANTS: 16 competitive swimmers. MAIN OUTCOME MEASUREMENTS: Infrared cameras were used to record kinematics in the scapular plane in synchronization with the electromyography system. RESULTS: There was an increase in internal rotation in all angles (p < 0.05), an increase of the anterior tilt, with 120° of elevation (p = 0...
November 6, 2017: Physical Therapy in Sport
Gisele Harumi Hotta, Adriane Lopes Santos, Kevin James McQuade, Anamaria Siriani de Oliveira
BACKGROUND: The present study aimed to describe the effects of a periscapular strengthening and neuromuscular training protocol in three-dimensional scapular kinematics and resting positioning in participants with shoulder impingement symptoms. Self-reported function was also evaluated. METHOD: The study group comprised 50 subjects with shoulder impingement syndrome (control group, n=25; treatment group, n=25). The treatment group underwent 8weeks of neuromuscular training and periscapular strengthening...
December 11, 2017: Clinical Biomechanics
Afsun Nodehi Moghadam, Kianoush Abdi, Mohsen Shati, Shohreh Noorizadeh Dehkordi, Abbas Ali Keshtkar, Zahra Mosallanezhad
BACKGROUND: Scapular dyskinesis is an alteration in normal scapular position and motion. Some researchers believe that altered kinematics of the scapula subsequent to dysfunction or weakness of scapular stabilizing muscles contributes to impingement syndrome. Scapular muscle exercises are included in the rehabilitation of patients with subacromial impingement syndrome and scapular dyskinesis because the muscular system is one of the major contributors of scapular positioning both at rest and during shoulder movement, but there is considerable uncertainty relating to the relative effectiveness of such approaches on changing scapular position and motion...
December 13, 2017: JMIR Research Protocols
Tsun-Shun Huang, Hsiang-Ling Ou, Jiu-Jenq Lin
STUDY DESIGN: Crossover repeated-measure design. INTRODUCTION: Scapular dyskinesis rehabilitation programs that focus on inhibiting upper trapezius (UT) and activating the lower trapezius (LT) may assist in restoring scapular movements. We hypothesized that taping may be able to normalize scapular movements and associated muscular recruitment. PURPOSE OF THE STUDY: The purpose of this study was to investigate the immediate effects of kinesio taping over trapezius on scapular kinematics and muscular activation in different dyskinesis patterns...
November 28, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
Yi-Fen Shih, Pei-Wen Liao, Chun-Shou Lee
BACKGROUND: Contractile tissue plays an important role in mobility deficits in frozen shoulder (FS). However, no study has assessed the effect of the muscle release technique on the muscle activation and kinematics in individuals with FS. The purposes of this study were to assess the differences in shoulder muscle activity and kinematics between the FS and asymptomatic groups; and to determine the immediate effects of muscle release intervention in the FS group. METHODS: Twenty patients with FS and 20 asymptomatic controls were recruited...
November 28, 2017: BMC Musculoskeletal Disorders
C Savcun Demirci, E Turgut, E Ayvat, Ö Onursal, F Ayvat, T I Yıldız, I Düzgün, M Kılınç, S Aksu Yıldırım
The purpose of this study is to evaluate scapular movements by the three-dimensional electromagnetic system during shoulder elevation in FSHMD patients, and to compare the results with healthy individuals. 10 patients with FSHMD and 10 healthy individuals were included in the study. Scapular anterior-posterior tilt, upward-downward rotation and internal-external rotation at 30°, 60° and 90° were evaluated using the three-dimensional electromagnetic system during the elevation of the upper limbs in the scapular plane...
February 2018: Journal of Electromyography and Kinesiology
Jereme Wilroy, Elizabeth Hibberd
CONTEXT: Previous literature has theorized that alterations in shoulder physical characteristics are present in wheelchair athletes and contribute to shoulder pain and injury. Limited empirical evidence is present that evaluates the effectiveness of a shoulder injury prevention program focusing on improving these altered characteristics. OBJECTIVE: To evaluate the effectiveness of a 6-week intervention program at improving characteristics that increases the risk of developing pain or shoulder injury...
November 15, 2017: Journal of Sport Rehabilitation
Bryan R Picco, Meghan E Vidt, Clark R Dickerson
Scapular kinematics are important indicators of dyskinesis, often suggesting underlying shoulder pathology, but the influence of sex is unknown. This study's objective was to examine scapular kinematics in healthy males and females. Positions of surface-mounted reflective markers were tracked during arm elevation movements in 0°/30°/40°/60°/90°/120° planes. Scapulothoracic rotations (protraction/retraction, medial/lateral rotation, posterior/anterior tilt) were calculated. ANOVA analysis evaluated main and interaction effects of sex, plane, phase, elevation angle...
November 1, 2017: Journal of Applied Biomechanics
Satoshi Oki, Noboru Matsumura, Yoshimori Kiriyama, Takuji Iwamoto, Kazuki Sato, Takeo Nagura
OBJECTIVE: The purpose of this study was to describe the 3-dimensional deformities of midshaft clavicle fractures, which had been treated nonoperatively, using computed tomography (CT) surface matching. METHODS: Twenty-one patients with unilateral midshaft clavicle fracture, who had been treated nonoperatively, were enrolled and evaluated retrospectively. The 3-dimensional deformity of the fractured clavicle was evaluated by CT surface matching. CT scans of 21 age- and sex-matched patients with initial traumatic shoulder dislocation or proximal humeral fracture were enrolled as a control group, and the differences in 3-dimensional deformities and lengths of the clavicles between the fracture group and the control group were evaluated...
November 2017: Journal of Orthopaedic Trauma
Marie-Martine Lefèvre-Colau, Christelle Nguyen, Clemence Palazzo, Frederic Srour, Guillaume Paris, Valerie Vuillemin, Serge Poiraudeau, Agnes Roby-Brami, Alexandra Roren
BACKGROUND: The global range of motion of the arm is the result of a coordinated motion of the shoulder complex including glenohumeral (GH), scapulothoracic, sternoclavicular and acromioclavicular joints. METHODS: This study is a non-systematic review of kinematic patterns in degenerated shoulders. It is a based on our own research on the kinematics of the shoulder complex and clinical experience. RESULTS: For patients with subacromial impingement syndrome without rotator-cuff tears, most kinematic studies showed a small superior humeral translation relative to the glenoid and decreased scapular lateral rotation and posterior tilt...
January 2018: Annals of Physical and Rehabilitation Medicine
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