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scapulohumeral rhythm

Alexandra Roren, Marie-Martine Lefevre-Colau, Agnès Roby-Brami, Christelle Nguyen, Serge Poiraudeau
OBJECTIVE: Scapular motion is essential for full, functional mobility of the arm. Many shoulder pathologies are associated with alterations of scapular kinematics which have been only little studied in total shoulder arthroplasties. The aim of this study was to compare the 3D scapula kinematics in two groups of patients with total shoulder anatomic (aTSA) or reverse (rTSA) arthoplasties to asymptomatic controls of comparable age during two arm elevation tasks (abduction and flexion) and two simulations of activity of daily living ("hair combing" and "back washing")...
September 2016: Annals of Physical and Rehabilitation Medicine
Sana Salah, Houda Migaou, Zied Belaaj, Soumaya Boudokhane, Anis Jellad, Abderrazak Abid, Zohra Ben Salah Frih
OBJECTIVE: Winging of the scapula has a variety of causes and a variable prognosis. It contributes to a disruption of the scapulohumeral rhythm with a decreased flexion and abduction of the upper extremity and a source of a considerable pain. This condition can affect the ability to perform activities of daily living. The most common cause of scapula winging is serratus anterior paralysis resulting from a lesion of the long thoracic nerve. The rupture of the muscle itself remains uncommon...
September 2016: Annals of Physical and Rehabilitation Medicine
Kwang Won Lee, Yong In Kim, Ha Yong Kim, Dae Suk Yang, Gyu Sang Lee, Won Sik Choy
BACKGROUND: There have been few reports on altered kinematics of the shoulder after reverse total shoulder arthroplasty (RTSA). We investigated differences in 3-dimensional (3D) scapular motions assessed using an optical tracking system between RTSA treated shoulders and asymptomatic contralateral shoulders during arm motion. METHODS: Thirteen patients who underwent RTSA were assessed for active arm elevation in 2 distinct elevation planes (sagittal plane flexion and scapular plane abduction)...
September 2016: Clinics in Orthopedic Surgery
Xavier Robert-Lachaine, Paul Allard, Véronique Godbout, Patrice Tétreault, Mickael Begon
BACKGROUND: Some patients with rotator cuff tears feel pain without functional limitation, whereas others show a decrease in range of motion. To investigate this distinction, the scapulohumeral rhythm was used to conduct a functional evaluation of shoulder joints' coordination. The objective was to characterize patients according to their active range of motion without pain and their scapulohumeral rhythm compared with healthy individuals. MATERIALS AND METHODS: Fourteen patients with rotator cuff tears and 14 healthy individuals were set up with 35 reflective markers on the trunk and upper limb tracked by an optoelectronic system to measure the scapulohumeral rhythm...
October 2016: Journal of Shoulder and Elbow Surgery
Yukiko Nakamura, Masaaki Tsuruike, Todd S Ellenbecker
CONTEXT: The appropriate resistance intensity to prescribe for shoulder rehabilitative exercise is not completely known. Excessive activation of the deltoid and upper trapezius muscles could be counterproductive for scapulohumeral rhythm during humeral elevation. OBJECTIVE: To identify the effects of different exercise intensities on the scapular muscles during a free-motion "robbery" exercise performed in different degrees of shoulder abduction in seated and standing positions...
March 2016: Journal of Athletic Training
Kazuya Madokoro, Masafumi Gotoh, Yoshihiro Kai, Tatsuyuki Kakuma, Takashi Nagamatsu, Naoto Shiba
BACKGROUND: Failure of the scapulohumeral rhythm (SHR) is observed in patients with shoulder joint dysfunction. The SHR reportedly has a 2:1 ratio during scapular upward rotation with arm elevation. However, three-dimensional scapular motion analysis has indicated variations in this ratio according to the arm elevation angle. We observed 2 distinct patterns: the scapular upward rotation decreased after knot formation (type I) or increased after knot formation (type II) during arm elevation...
December 2016: Journal of Experimental Orthopaedics
Xavier Robert-Lachaine, Paul Allard, Veronique Gobout, Mickael Begon
CONTEXT: Supraspinatus tear is a common rotator cuff injury. During rehabilitation, debate persists regarding the most appropriate exercises. Whereas shoulder coordination is part of normal arm function, it has been infrequently considered in the context of exercise selection. OBJECTIVE: To assess shoulder-motion coordination during 2 common supraspinatus rehabilitation exercises and to characterize load and motion-direction influences on shoulder coordination. DESIGN: Descriptive laboratory study...
November 2015: Journal of Athletic Training
Cristina Roldán-Jiménez, Antonio I Cuesta-Vargas
BACKGROUND: In recent years, there has been a great interest in analyzing upper-limb kinematics in order to investigate scapulohumeral rhythm, as its alteration has been associated with shoulder joint complex injuries. The use of inertial sensors is presented as a convenient and portable analysis method for studying kinematics in terms of angular mobility and linear acceleration. The aim of this study was to analyze upper-limbs kinematics in the three anatomical axes, obtained by inertial sensors...
2015: BMC Research Notes
Shoji Konda, Toshimasa Yanai, Shinji Sakurai
BACKGROUND: The role of the scapula during high-velocity baseball pitching has been described without 3-dimensional kinematic data. It has been speculated that the scapula functions to align the humerus with the spine of the scapula on both the transverse and scapular planes at the end of the arm-cocking phase. HYPOTHESIS: Two hypotheses were formulated: (1) the scapulothoracic protraction angle correlates with the humerothoracic horizontal adduction angle among participants, and (2) the scapulohumeral rhythm of the humerothoracic elevation is not the same as the normal ratio (2:1) observed widely in controlled abductions...
October 2015: American Journal of Sports Medicine
Seyed Hossein Hosseinimehr, Mehrdad Anbarian, Ali Asghar Norasteh, Javad Fardmal, Mohammad Taghi Khosravi
Previous studies have stated that the scapulohumeral rhythm dysfunction can make person prone to glenohumeral joint pathologies. The purpose of this study was to compare scapular upward rotation and scapulohumeral rhythm between dominant and non-dominant shoulder in male overhead athletes and non-athletes. Seventeen overhead athletes and seventeen non-athletes volunteered for this study. Two inclinometers were used to measure humeral abduction and scapular upward rotation in rest position, 45°, 90° and 135° humeral abduction in frontal plane...
December 2015: Manual Therapy
David Walker, Keisuke Matsuki, Aimee M Struk, Thomas W Wright, Scott A Banks
BACKGROUND: Little is known about kinematic function of reverse total shoulder arthroplasty (RTSA). Scapulohumeral rhythm (SHR) is a common metric for assessing muscle function and shoulder joint motion. The purpose of this study was to compare SHR in shoulders with RTSA to normal shoulders. METHODS: Twenty-eight subjects, more than 12 months after unilateral RTSA, were recruited for an Institutional Review Board-approved study. Subjects performed arm abduction in the coronal plane with and without a 1...
July 2015: Journal of Shoulder and Elbow Surgery
Tsun-Shun Huang, Han-Yi Huang, Tyng-Guey Wang, Yung-Shen Tsai, Jiu-Jenq Lin
BACKGROUND: Assessment of scapular dyskinesis (SD) is of clinical interest, as SD is believed to be related to shoulder pathology. However, no clinical assessment with sufficient reliability to identify SD and provide treatment strategies is available. OBJECTIVES: The purpose of this study was to investigate the reliability of the comprehensive SD classification method. DESIGN: Cross-sectional reliability study. METHOD: Sixty subjects with unilateral shoulder pain were evaluated by two independent physiotherapists with a visual-based palpation method...
June 2015: Manual Therapy
Hiroki Kawashima, Kaoru Tada, Seigo Suganuma, Hiroyuki Tsuchiya, Shigeru Sanada
We hypothesized that wrist joint motion involves a "wrist rhythm" similar to the scapulohumeral rhythm. Therefore, we used a flat-panel detector to evaluate the ratio of radiolunate and capitolunate joint motions during wrist joint motion by dynamic radiography. The subjects were 20 healthy men. Dynamic imaging of the wrist joint was performed during active exercise for a total of ten seconds. In this study, we defined the radiocarpal (RL angle) and midcarpal joint angle (CL angle) as the wrist joint angle in the obtained images and measured the variation of these angles...
2014: Hand Surgery
Cyrus Taghizadeh Delkhoush, Nader Maroufi, Ismail Ebrahimi Takamjani, Farzam Farahmand, Ali Shakourirad, Hamid Haghani
BACKGROUND: Patients who have shoulder pain usually have compensatory or contributory deviation of shoulder motion during arm elevation. In the traditional scapulohumeral rhythm, the share of the acromioclavicular (AC) and the sternoclavicular (SC) joint movements and also the role of AC internal rotation angle are unknown. OBJECTIVES: The main purpose of this study was to measure and compare the segmentary scapulohumeral rhythm (SSHR) during scapular arm elevation at a steady rotational speed in athletes with and without impingement syndrome...
May 2014: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
Fernanda A P Habechian, Giovanna G Fornasari, Luciane S Sacramento, Paula R Camargo
Scapular kinematics in healthy adults is well described in the literature but little is known on typical children. This study aimed to compare the three-dimensional (3-D) scapular kinematics and scapulohumeral rhythm during the elevation and lowering of the arm in the scapular plane in typical children and healthy adults. Twenty-six healthy adults (35.34±11.65 years, 1.70±0.10m, 70.00±12.30kg) and 33 typical children (9.12±1.51 years, 1.40±0.10m, 35.40±10.45kg) participated in this study. 3-D scapular kinematics were obtained using an electromagnetic tracking device...
February 2014: Journal of Electromyography and Kinesiology
Dayana P Rosa, Francisco Alburquerque-Sendín, Tania F Salvini, Paula R Camargo
OBJECTIVE: The purpose of this study was to evaluate the immediate effects of seated thoracic manipulation on scapulothoracic kinematics and scapulohumeral rhythm during arm flexion in young asymptomatic participants. METHODS: A convenience sample of 42 young asymptomatic participants was randomly divided in 2 groups: manipulation and sham group. Measurements were taken before and after the intervention. All participants completed the Disabilities of the Arm, Shoulder, and Hand questionnaire to assess pain and physical function...
October 2013: Journal of Manipulative and Physiological Therapeutics
James Rubright, Peter Kelleher, Christina Beardsley, David Paller, Steven Shackford, Bruce Beynnon, Adam Shafritz
BACKGROUND: Total excision of the clavicle is rarely performed. No previous study has documented long-term outcomes with objective measurements of strength, motion, and patient-centered outcomes. We present the long-term consequences of total claviculectomy on shoulder girdle function, global upper extremity function, and overall general health. METHODS: Five total claviculectomy patients were evaluated at 2 time points (2005 and 2010, mean 4.8 and 9.4 years postoperatively) by use of the DASH, SF-36, Simple Shoulder Test, ASES, UCLA, HSS, and Constant shoulder scores...
February 2014: Journal of Shoulder and Elbow Surgery
Marcelo P de Castro, Daniel Cury Ribeiro, Felipe de C Forte, Joelly M de Toledo, Daniela Aldabe, Jefferson F Loss
The current study aimed to compare the shoulder kinematics (3D scapular orientation, scapular angular displacement and scapulohumeral rhythm) of asymptomatic participants under unloaded and loaded conditions during unilateral shoulder elevation in the scapular plane. We used a repeated-measures design with a convenience sample. Eleven male participants with an age range of 21-28 years with no recent history of shoulder injury participated in the study. The participants performed isometric shoulder elevation from a neutral position to approximately 150 degrees of elevation in the scapular plane in intervals of approximately 30 degrees during unloaded and loaded conditions...
February 2014: Journal of Applied Biomechanics
Delva Shamley, Ion Lascurain-Aguirrebeña, Reza Oskrochi
Normal painfree movement of the upper limb requires movement at the glenohumeral joint and movement of the scapula on the thorax. Co-ordinated movement of these joints is known as the scapulohumeral rhythm and is required during elevation of the arm. Coordinated movement is further achieved by timing of the many muscles acting across the joints. A pilot study from our laboratory has shown significant alterations to this scapulohumeral rhythm and its muscle control following treatment for breast cancer. The aims of this study were to: (1) correlate altered muscle activity from a larger sample with observed movement deviations; (2) compare movement and muscle deviations in survivors with a healthy population and (3) explore the impact of a mastectomy versus a wide local excision (WLE) on the observed deviations...
April 2014: Clinical Anatomy
Sang Ki Lee, Dae Suk Yang, Ha Yong Kim, Won Sik Choy
BACKGROUND: Generally, the scapular motions of pathologic and contralateral normal shoulders are compared to characterize shoulder disorders. However, the symmetry of scapular motion of normal shoulders remains undetermined. Therefore, the aim of this study was to compare 3dimensinal (3D) scapular motion between dominant and nondominant shoulders during three different planes of arm motion by using an optical tracking system. MATERIALS AND METHODS: Twenty healthy subjects completed five repetitions of elevation and lowering in sagittal plane flexion, scapular plane abduction, and coronal plane abduction...
March 2013: Indian Journal of Orthopaedics
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