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scapular stability

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https://www.readbyqxmd.com/read/27855670/influence-of-disruption-of-the-acromioclavicular-and-coracoclavicular-ligaments-on-glenohumeral-motion-a-kinematic-evaluation
#1
Kempland C Walley, Babak Haghpanah, Andreas Hingsammer, Ethan R Harlow, Ashkan Vaziri, Joseph P DeAngelis, Ara Nazarian, Arun J Ramappa
BACKGROUND: Changes to the integrity of the acromioclavicular (AC) joint impact scapulothoracic and clavicular kinematics. AC ligaments provide anterior-posterior stability, while the coracoclavicular (CC) ligaments provide superior-inferior stability and a restraint to scapular internal rotation. The purpose of this cadaveric study was to describe the effect of sequential AC and CC sectioning on glenohumeral (GH) kinematics during abduction (ABD) of the arm. We hypothesized that complete AC ligament insult would result in altered GH translation in the anterior-posterior plane during abduction, while subsequent sectioning of both CC ligaments would result in an increasing inferior shift in GH translation...
November 17, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27847244/effect-of-scapular-stabilization-during-cross-body-stretch-on-the-hardness-of-infraspinatus-teres-minor-and-deltoid-muscles-an-ultrasonic-shear-wave-elastography-study
#2
Jun Umehara, Satoshi Hasegawa, Masatoshi Nakamura, Satoru Nishishita, Hiroki Umegaki, Hiroki Tanaka, Kosuke Fujita, Ken Kusano, Noriaki Ichihashi
BACKGROUND: Posterior shoulder tightness is a contributing factor to shoulder injuries. Cross-body stretch is a method frequently prescribed to stretch the posterior shoulder structures. This stretching is performed horizontally adducting the shoulder with or without manual stabilization of the scapula by the therapist. However, no studies have investigated the effect of scapular stabilization during cross-body stretch using shear elastic modulus as an index of muscle hardness in vivo...
October 12, 2016: Manual Therapy
https://www.readbyqxmd.com/read/27787465/influence-of-scapular-position-on-the-core-musculature-activation-in-the-prone-plank-exercise
#3
Juan M Cortell-Tormo, Miguel García-Jaén, Iván Chulvi-Medrano, Sergio Hernández-Sánchez, Ángel G Lucas-Cuevas, Juan Tortosa-Martínez
Prone plank is a widely used exercise in core stability training. Research has shown that pelvic tilt plays an important role on the electromyographical (EMG) activation of core musculature. However, the influence of scapular position on EMG activation is currently unknown. Therefore, this study evaluated the influence of scapular position on the core muscles during a prone plank. Surface electromyography of the rectus abdominis (RA), external oblique (EO), internal oblique (IO) and erector spinae (ES) was collected in fifteen participants (10 men, 5 women)...
October 26, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27776006/arthroscopic-assisted-acromioclavicular-and-coracoclavicular-ligaments-reconstruction-for-chronic-acromioclavicular-dislocations-surgical-technique
#4
Achilleas Boutsiadis, Laurent Baverel, Hubert Lenoir, Philippe Delsol, Johannes Barth
Chronic acromioclavicular (AC) instability is a rare posttraumatic shoulder condition that can lead to undesirable symptoms like persistent pain, muscle fatigue, loss of strength, or even scapular dyskinesis. It is well known that in these cases the superior functional results depend on the restoration of the anatomy and stability of the AC joint in both vertical and horizontal planes. Considering the ligaments degeneration and atrophy in chronic AC joint dislocations, we present an arthroscopic-assisted reconstruction of both the coracoclavicular and AC ligaments using autograft augmentation...
December 2016: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/27735227/shoulder-muscle-activation-levels-during-exercises-with-axial-and-rotational-load-on-stable-and-unstable-surfaces
#5
Vinícius Yan Santos Nacimento, Rafaela Joyce Barbosa Torres, Natália Barros Beltrão, Priscila Soares Dos Santos, André Luiz Torres Pirauá, Valéria Mayaly Alves de Oliveira, Ana Carolina Rodarti Pitangui, Rodrigo Cappato de Araújo
This study evaluated the effects of instability on the EMG activity of scapular stabilizing and upper limb muscles during exercises with axial and rotational load. 20 male volunteers (20.9 ± 1.8 years, 174.1 ± 0.04 cm, 73.17 ± 8.77 kg) experienced in strength training participated in a crossover design. Muscle activation of anterior deltoid (AD), posterior deltoid (PD), pectoralis major (PM), biceps brachii (BB), triceps brachii (TB), upper trapezius (UT), middle trapezius (MT), lower trapezius (LT) and serratus anterior (SA) were determined on both conditions...
October 13, 2016: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/27697398/reconstruction-of-the-maxilla-following-hemimaxillectomy-defects-with-scapular-tip-grafts-and-dental-implants
#6
Christian Mertens, Christian Freudlsperger, Jens Bodem, Michael Engel, Jürgen Hoffmann, Kolja Freier
BACKGROUND: Treatment of post-resective defects of the maxilla can be challenging and usually requires dental obturation or microvascular reconstruction. As compared to soft-tissue microvascular grafts, bone reconstruction can additionally allow for facial support and retention of dental implants. The aim of this study was to evaluate scapular tip grafts with respect to their applicability for maxillary reconstruction and their potential to retain dental implants for later dental rehabilitation...
November 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27676854/evolution-of-isokinetic-torque-ratios-of-shoulder-rotator-muscles
#7
Maryne Cozette, Stéphane Delanaud, Pierre-Marie Lepretre, Thierry Weissland
OBJECTIVE: Shoulder internal (IR) and external rotator (ER) muscles play an important role in the stability of glenohumeral joint. The ratio between the peak torque of ER and IR in concentric (ER/IRPT) and mixed (ER-ECC/IR-CONPT) are usually measured to evaluate the effects of muscle weakness, sport activities, injury and treatment (Greenfield et al., 1990; Scoville et al., 1997). However, ER/IRPT and ER-ECC/IR-CONPT failed to provide some indication on the evolution of the ER/IR torque ratio (ER/IRTorque) and mixed torque ratio (ER-EC/IR-COTorque) during the range of motion (ROM)...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27632870/shoulder-muscle-activation-levels-during-the-push-up-plus-exercise-on-stable-and-unstable-surfaces
#8
Rafaela Joyce Barbosa Torres, André Luiz Torres Pirauá, Vinícius Yan Santos Nacimento, Priscila Soares Dos Santos, Natália Barros Beltrão, Valéria Mayaly Alves de Oliveira, Ana Carolina Rodarti Pitangui, Rodrigo Cappato de Araújo
The aim of this study was to evaluate the acute effect of the use of stable and unstable surfaces on EMG activity and coactivation of the scapular and upper limb muscles during performing push-up plus (with full protraction of the scapula). Muscle activation of anterior deltoid (AD), posterior deltoid (PD), pectoralis major (PM), biceps brachii (BB), triceps brachii (TB), upper trapezius (UT), middle trapezius (MT), lower trapezius (LT) and serratus anterior (SA) levels and coactivation index were determined by surface electromyography in 20 young men during push-up plus performed on a stable and unstable condition (two unstable devices applied to hands and feet)...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27632831/biomechanical-analysis-of-closed-kinetic-chain-upper-extremity-stability-test
#9
Helga T Tucci, Lilian R Felicio, Kevin J McQuade, Debora Bevilaqua-Grossi, Paula Maria Ferreira Camarini, Anamaria S Oliveira
CONTEXT: Closed Kinetic Chain Upper Extremity Stability Test (CKCUES test) is a functional test for the upper extremity performed in the push-up position, where individuals support their body weight on one hand placed on the ground and swing the opposite hand until touching the hand on the ground, then switch hands and repeat the process as fast as possible for fifteen seconds. OBJECTIVE: To study scapular kinematics and kinetic measures during CKCUES test for three different distances between hands...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27607130/oro-nasal-communication
#10
Nanda Kishore Sahoo, Ajay P Desai, Indranil Deb Roy, Vishal Kulkarni
Breach in the palatal vault leading to an abnormal communication between oral and nasal cavity is known as oro-nasal communication. It is an uncommon presentation in day-to-day clinical practice except in some patients of cleft lip and palate.Etiology may be congenital or acquired. Alveolar and palatal cleft defects are the most common etiological factor. The acquired causes may be trauma, periapical pathology, infections, neoplasms, postsurgical complications, and radio and chemo necrosis.Clinical features like nasal regurgitation of food, defective speech, fetid odor, bad taste, and upper respiratory tract and ear infection are associated with oro-nasal communication...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27548867/therapeutic-taping-for-scapular-stabilization-in-children-with-brachial-plexus-birth-palsy
#11
Stephanie A Russo, Luisa M Rodriguez, Scott H Kozin, Dan A Zlotolow, Ross S Chafetz, Carolyn M Killelea, Kristen F Nicholson, James G Richards
OBJECTIVE: In this study, we aimed to assess whether therapeutic taping for scapular stabilization affected scapulothoracic, glenohumeral, and humerothoracic joint function in children with brachial plexus birth palsy and scapular winging. METHOD: Motion capture data were collected with and without therapeutic taping to assist the middle and lower trapezius in seven positions for 26 children. Data were compared with one-way multivariate analyses of variance. RESULTS: With therapeutic taping, scapular winging decreased considerably in all positions except abduction...
September 2016: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/27512278/emg-activity-of-the-serratus-anterior-and-trapezius-muscles-during-the-different-phases-of-the-push-up-plus-exercise-on-different-support-surfaces-and-different-hand-positions
#12
George Gioftsos, Michail Arvanitidis, Dimitrios Tsimouris, Assimakis Kanellopoulos, George Paras, Panagiotis Trigkas, Vasiliki Sakellari
[Purpose] The appropriate exercise prescription is crucial for achieving scapular stability and providing successful rehabilitation, and the Push-up Plus (PuP) exercise has an important role in shoulder rehabilitation. Consequently, this study examined the effect of support surface stability, hand positioning, and phase of exercise, on the trapezius and serratus anterior muscle contractions as well as on the EMG ratio of the upper/lower trapezius. [Subjects and Methods] Thirteen healthy male volunteers participated in this study...
July 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27475714/exercises-focusing-on-rotator-cuff-and-scapular-muscles-do-not-improve-shoulder-joint-position-sense-in-healthy-subjects
#13
Yin-Liang Lin, Andrew Karduna
Proprioception is essential for shoulder neuromuscular control and shoulder stability. Exercise of the rotator cuff and scapulothoracic muscles is an important part of shoulder rehabilitation. The purpose of this study was to investigate the effect of rotator cuff and scapulothoracic muscle exercises on shoulder joint position sense. Thirty-six healthy subjects were recruited and randomly assigned into either a control or training group. The subjects in the training group received closed-chain and open-chain exercises focusing on rotator cuff and scapulothoracic muscles for four weeks...
October 2016: Human Movement Science
https://www.readbyqxmd.com/read/27374236/relative-scapular-muscle-activity-ratios-are-altered-in-subacromial-pain-syndrome
#14
Lori A Michener, Sapna Sharma, Ann M Cools, Mark K Timmons
BACKGROUND: Coordinated muscle activity is needed for synchronized joint motion and stability. Characterizing relative scapular muscle activity deficits in participants with shoulder pain will provide foundational knowledge to develop rehabilitation programs. METHODS: Participants were recruited with subacromial pain syndrome and an asymptomatic control group matched for age, gender, and dominant arm (N = 56). Surface electromyographic muscle activity was recorded from the upper, middle, and lower trapezius (UT, MT, LT) and serratus anterior (SA) during 5 repetitions of a weighted arm elevation task...
November 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27300808/shoulder-muscle-activation-levels-during-the-push-up-plus-exercise-on-stable-and-unstable-surfaces
#15
Rafaela Joyce Torres, André Luiz Pirauá, Vinícius Yan Nacimento, Priscila Soares Santos, Natália Barros Beltrão, Valéria Mayaly Oliveira, Ana Carolina Pitangui, Rodrigo Cappato de Araújo
The aim of this study was to evaluate the acute effect of the use of stable and unstable surfaces on EMG activity and coactivation of the scapular and upper limb muscles during performing push-up plus (with full protraction of the scapula). Muscle activation of anterior deltoid (AD), posterior deltoid (PD), pectoralis major (PM), biceps brachii (BB), triceps brachii (TB), upper trapezius (UT), middle trapezius (MT), lower trapezius (LT) and serratus anterior (SA) levels and coactivation index were determined by surface electromyography in 20 young men during push-up plus performed on a stable and unstable condition (two unstable devices applied to hands and feet)...
June 14, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27280624/management-of-snapping-scapula-syndrome
#16
Mark L Wang, Andrew J Miller, Brooke L Ballard, Michael J Botte
Snapping scapula syndrome is a rare condition caused by the disruption of the gliding articulation between the anterior scapula and the posterior chest wall. The etiology of snapping scapula syndrome is multifactorial, and contributing factors include scapular dyskinesis, bursitis from repetitive use or trauma, and periscapular lesions. Although the majority of cases are initially treated with nonoperative modalities, recalcitrant snapping scapula syndrome can warrant surgical management. This report describes a 34-year-old amateur weight lifter with a 1-year history of increasing pain and fullness over his posterior shoulder region...
July 1, 2016: Orthopedics
https://www.readbyqxmd.com/read/27274418/a-systematic-review-of-the-exercises-that-produce-optimal-muscle-ratios-of-the-scapular-stabilizers-in-normal-shoulders
#17
Abbey Schory, Erik Bidinger, Joshua Wolf, Leigh Murray
PURPOSE: The purpose of this systematic review was to determine the exercises that optimize muscle ratios of the periscapular musculature for scapular stability and isolated strengthening. METHODS: A systematic search was performed in PubMed, CINAHL, SPORTDiscus, Scopus, and Discovery Layer. Studies were included if they examined the muscle activation of the upper trapezius compared to the middle trapezius, lower trapezius, or serratus anterior using EMG during open chain exercises...
June 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27232160/assessment-of-cervical-range-of-motion-cervical-core-strength-and-scapular-dyskinesia-in-violin-players
#18
Pooja Tawde, Rachana Dabadghav, Nilima Bedekar, Ashok Shyam, Parag Sancheti
BACKGROUND: Playing the violin can lead to asymmetric postures which can affect the cervical range of motion, cervical core strength and scapular stability. OBJECTIVE: The objective of the study was to assess the cervical range of motion, cervical core strength and scapular dyskinesia in violin players and non-players of the same age group. METHODS: An inclinometer was used to assess the cervical range of motion, pressure biofeedback was used to assess cervical core strength and scapular dyskinesia was also assessed in 30 professional violin players (18-40 years) compared with 30 age-matched non-players...
May 27, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27161990/scapular-kinematic-is-altered-after-electromyography-biofeedback-training
#19
Jun G San Juan, Samantha R Gunderson, Kai Kane-Ronning, David N Suprak
Electromyography (EMG) biofeedback training affords patients a better sense of the different muscle activation patterns involved in the movement of the shoulder girdle. It is important to address scapular kinematics with labourers who have daily routines involving large amounts of lifting at shoulder level or higher. This population is at a heightened risk of developing subacromial impingement syndrome (SAIS). The purpose of this study was to investigate the acute effects of scapular stabilization exercises with EMG biofeedback training on scapular kinematics...
June 14, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27152283/changes-in-activation-of-serratus-anterior-trapezius-and-latissimus-dorsi-with-slouched-posture
#20
Seok Tae Lee, Jinkyoo Moon, Seung Hoon Lee, Kye Hee Cho, Sang Hee Im, MinYoung Kim, Kyunghoon Min
OBJECTIVE: To compare quantitative muscle activation between erect and slouched sitting postures in the muscles around the scapula, and to investigate the correlation between the angle of thoracic kyphosis and the alteration of muscle activity depending on two different sitting postures. METHODS: Ten healthy males participated in the study. Unilateral surface electromyography (SEMG) was performed for serratus anterior, middle trapezius (MT), and lower trapezius (LT), which are scapular stabilizer muscles, as well as latissimus dorsi...
April 2016: Annals of Rehabilitation Medicine
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