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https://www.readbyqxmd.com/read/29199196/effect-of-different-head-neck-jaw-postures-on-cervicocephalic-kinesthetic-sense
#1
H Zafar, A H Alghadir, Z A Iqbal
OBJECTIVES: To investigate the effect of different induced head-neck-jaw postures on head-neck relocation error among healthy subjects. METHODS: 30 healthy adult male subjects participated in this study. Cervicocephalic kinesthetic sense was measured while standing, habitual sitting, habitual sitting with clenched jaw and habitual sitting with forward head posture during right rotation, left rotation, flexion and extension using kinesthetic sensibility test. RESULTS: Head-neck relocation error was least while standing, followed by habitual sitting, habitual sitting with forward head posture and habitual sitting with jaw clenched...
December 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/29184298/changes-in-rounded-shoulder-posture-and-forward-head-posture-according-to-exercise-methods
#2
Do Youn Lee, Chan Woo Nam, Youn Bum Sung, Kyoung Kim, Hae Yong Lee
[Purpose] This study aimed to determine the effect of forward head posture-improving exercises on rounded shoulder posture when employing the self-stretch exercise, the McKenzie exercise, and the Kendall exercise as intervention methods based on previous studies that reported negative effects of unbalanced posture and musculoskeletal problems on forward head posture and rounded shoulder posture. [Subjects and Methods] The selected 28 subjects were randomly assigned into the McKenzie exercise group (n=9), the self-stretch exercise group (n=10), and the Kendall exercise group (n=9)...
October 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29118083/the-effect-of-magnification-loupes-on-dental-hygienists-posture-while-exploring
#3
Emily A Ludwig, Gayle B McCombs, Susan L Tolle, Daniel M Russell
Purpose: The purpose of this study was to determine the effects of dental magnification loupes on posture during instrumentation.Methods: A convenience sample of 27 right-handed dental hygienists, with no prior history of injuries or disabilities of the head, neck, or trunk region, enrolled in the study. Baseline posture calibration was taken and tri-axial accelerometers were placed on four locations of the head and trunk (occipital region of head; cervical vertebrae C5; thoracic vertebrae T5; lumbar vertebrae L1) to measure acceleration and the orientation of the body to gravity...
August 2017: Journal of Dental Hygiene: JDH
https://www.readbyqxmd.com/read/29114506/correlations-among-visual-analogue-scale-neck-disability-index-shoulder-joint-range-of-motion-and-muscle-strength-in-young-women-with-forward-head-posture
#4
Young Jun Shin, Won Hyo Kim, Seong Gil Kim
This study investigated the correlation between the neck disability index (NDI) and visual analogue scale (VAS), which are indicators of neck pain, shoulder joint range of motion (ROM), and muscle strength in women with a slight forward head posture. This study was carried out on 42 female college students attending Uiduk University in Gyeongju, Korea. The neck pain and disability index for each subject was measured using VAS and NDI, respectively. Two physiotherapists measured the shoulder joint ROM and muscle strengths of the subjects using a goniometer and a dynamometer, respectively...
August 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29110218/cervical-sagittal-balance-a-biomechanical-perspective-can-help-clinical-practice
#5
REVIEW
Avinash G Patwardhan, Saeed Khayatzadeh, Robert M Havey, Leonard I Voronov, Zachary A Smith, Olivia Kalmanson, Alexander J Ghanayem, William Sears
PURPOSE: In this article, we summarize our work on understanding the influence of cervical sagittal malalignment on the mechanics of the cervical spine. METHODS: Biomechanical studies were performed using an ex vivo laboratory model to study the kinematic and kinetic response of human cervical spine specimens in the setting of cervical sagittal imbalance. The model allowed controlled variations of C2-C7 Sagittal Vertical Alignment (C2-C7 SVA) and T1-Slope so that clinically relevant sagittally malaligned profiles could be prescribed, while maintaining horizontal gaze, and their biomechanical consequences studied...
November 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29103927/three-dimensional-gait-analysis-reveals-dynamic-alignment-change-in-a-patient-with-dropped-head-syndrome-a-case-report
#6
Kousei Miura, Hideki Kadone, Masao Koda, Hiroshi Kumagai, Katsuya Nagashima, Kengo Fujii, Hiroshi Noguchi, Toru Funayama, Tetsuya Abe, Takeo Furuya, Masashi Yamazaki
Dropped head syndrome (DHS) is a cervical kyphotic deformity caused by apparent weakness of the neck extensor muscles. We often encounter patients whose symptoms, including impaired forward vision and neck pain, deteriorate while walking. This is the first report of a case of dynamic spinal alignment change in a patient with DHS during walking using three-dimensional gait analysis. A 78-year-old Japanese woman complained of impaired forward vision and neck pain while walking. Her radiograph showed severe cervical kyphosis...
November 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29097952/association-between-forward-head-rounded-shoulders-and-increased-thoracic-kyphosis-a-review-of-the-literature
#7
Deepika Singla, Zubia Veqar
Objective: The purpose of this review was to explore the association between forward head posture, rounded shoulders, and increased thoracic kyphosis. Methods: The PubMed, ERIC, and Cochrane databases were searched using the key words posture, head, shoulder, forward scapular posture, and thoracic kyphosis through December 2016. Results: Our initial search yielded 6840 research studies, 6769 of which were excluded because they either were duplicates or did not satisfy the inclusion criteria...
September 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28948643/a-potential-link-between-lateral-semicircular-canal-orientation-head-posture-and-dietary-habits-in-extant-rhinos-perissodactyla-rhinocerotidae
#8
Rico Schellhorn
Extant rhinoceroses share the characteristic nasal horn, although the number and size of horns varies among the five species. Although all species are herbivores, their dietary preferences, occipital shapes, and common head postures vary. Traditionally, to predict the "usual" head posture (the most used head posture of animals during normal unstressed activities, i.e., standing) of rhinos, the occipital shape was used. While a backward inclined occiput implies a downward hanging head (often found in grazers), a forward inclined occiput is related to the horizontal head posture in browsing rhinos...
September 26, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28878485/non-surgical-relief-of-cervical-radiculopathy-through-reduction-of-forward-head-posture-and-restoration-of-cervical-lordosis-a-case-report
#9
Bret M Wickstrom, Paul A Oakley, Deed E Harrison
[Purpose] To present a case demonstrating the relief of cervical radiculopathy following the dramatic reduction of forward head posture and restoration of the cervical lordosis by use of a multi-modal rehabilitation program incorporating cervical extension traction. [Subject and Methods] A 31-year-old male patient presented with severe cervical radiculopathy and muscle weakness as well as neck pain. The patient had limited neck range of motion, and multiple positive orthopedic tests. Radiography revealed excessive forward head posture with a cervical kyphosis...
August 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28805272/clinical-phenotype-of-south-east-asian-temporomandibular-disorder-patients-with-upper-airway-resistance-syndrome
#10
David K L Tay, Kenny P Pang
OBJECTIVE: To document the clinical phenotype of temporomandibular disorder (TMD) patients with concomitant upper airway resistance syndrome (UARS) in a South East Asian population. STUDY DESIGN: A multi-center prospective series of 86 TMD patients (26 men and 60 women / mean age 35.7 years) with UARS. All had excessive daytime sleepiness, high arousal index and apnea-hypopnea index (AHI)<5 RESULTS: The mean body mass index was 20.1, mean arousal index 16.2, mean respiratory disturbance index 19...
August 14, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28798674/adaptive-gaze-strategies-for-locomotion-with-constricted-visual-field
#11
Colas N Authié, Alain Berthoz, José-Alain Sahel, Avinoam B Safran
In retinitis pigmentosa (RP), loss of peripheral visual field accounts for most difficulties encountered in visuo-motor coordination during locomotion. The purpose of this study was to accurately assess the impact of peripheral visual field loss on gaze strategies during locomotion, and identify compensatory mechanisms. Nine RP subjects presenting a central visual field limited to 10-25° in diameter, and nine healthy subjects were asked to walk in one of three directions-straight ahead to a visual target, leftward and rightward through a door frame, with or without obstacle on the way...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28780477/reliability-of-forward-head-posture-evaluation-while-sitting-standing-walking-and-running
#12
Chang-Hyung Lee, Sojeong Lee, Gwanseob Shin
Forward head posture has been evaluated mostly by visual observation or simple non-invasive measurements without a standardized evaluation method or protocol. In this experimental study, the reliability of existing forward head-posture measurement methods was evaluated by computing the intra-class correlation coefficients of three different head-position variables (two horizontal gap variables and one head-orientation variable) in seven different posture conditions from 20 asymptomatic participants. The position variables of the head were measured three times using a three-dimensional motion capture system while sitting comfortably, sitting with the back straight, standing comfortably, standing with the back straight, walking at 4 and 6km/h on a treadmill, and running at 8km/h on a treadmill...
August 3, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28658117/predictors-of-upper-trapezius-pain-with-myofascial-trigger-points-in-food-service-workers-the-strobe-study
#13
Ui-Jae Hwang, Oh-Yun Kwon, Chung-Hwi Yi, Hye-Seon Jeon, Jong-Hyuck Weon, Sung-Min Ha
Shoulder pain occurs commonly in food service workers (FSWs) who repetitively perform motions of the upper limbs. Myofascial trigger points (MTrPs) on the upper trapezius (UT) are among the most common musculoskeletal shoulder pain syndromes. This study determined the psychological, posture, mobility, and strength factors associated with pain severity in FSWs with UT pain due to MTrPs.In this cross-sectional study, we measured 17 variables in 163 FSWs with UT pain due to MTrPs: a visual analog scale (VAS) pain score, age, sex, Borg rating of perceived exertion (BRPE) scale, beck depression inventory, forward head posture angle, rounded shoulder angle (RSA), shoulder slope angle, scapular downward rotation ratio, cervical lateral-bending side difference angle, cervical rotation side difference angle, glenohumeral internal rotation angle, shoulder horizontal adduction angle, serratus anterior (SA) strength, lower trapezius (LT) strength, bicep strength, and glenohumeral external rotator strength, in 163 FSWs with UT pain due to MTrPs...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28637601/clinical-assessment-of-subacromial-shoulder-impingement-which-factors-differ-from-the-asymptomatic-population
#14
Helen Land, Susan Gordon, Kerrianne Watt
BACKGROUND: To date, the significance of factors purported to be associated with subacromial shoulder impingement (SSI) and what differences, if any, are present in those with SSI compared to a matched asymptomatic population has not been identified. Gaining information about differences between people with SSI and asymptomatic people may direct clinicians towards treatments that impact upon these differences. OBJECTIVE: Compare the assessment findings of factors suggested to be associated with SSI; passive posterior shoulder range, passive internal rotation range, resting cervical and thoracic postures, active thoracic range in standing and scapula positioning between cases experiencing SSI and a matched asymptomatic group (controls)...
February 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28604165/reduction-of-cervical-and-respiratory-muscle-strength-in-patients-with-chronic-nonspecific-neck-pain-and-having-moderate-to-severe-disability
#15
Ibai López-de-Uralde-Villanueva, Ernesto Sollano-Vallez, Tamara Del Corral
PURPOSE: To investigate whether patients with chronic nonspecific neck pain and having moderate to severe disability have a greater cervical motor function impairment and respiratory disturbances compared with patients with chronic nonspecific neck pain having mild disability and asymptomatic subjects; and the association between these outcomes in patients with chronic nonspecific neck pain and healthy controls. METHODS: Cross-sectional study, 44 patients with chronic nonspecific neck pain and 31 healthy subjects participated...
June 11, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28593385/tailor-made-management-of-thoracic-scoliosis-with-cervical-hyperextension-in-muscular-dystrophy
#16
A Angelliaume, L Harper, A Lalioui, A Delgove, Y Lefèvre
PURPOSE: We report the case of a 13-year-old boy managed for fixed cervical hyperextension due to congenital muscular dystrophy with partial merosin deficiency. He presented a right decompensated thoracic scoliosis (T6-L1 Cobb angle 72°) associated with cervical and lumbar lordosis. The spinal extension was accompanied by major flexion of the hip resulting in the trunk being bent forward. This posture caused daily severe back pain responsible for significant loss of quality of life. This led to the decision to perform surgery...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28506006/immediate-responses-to-backpack-carriage-on-postural-angles-in-young-adults-a-crossover-randomized-self-controlled-study-with-repeated-measures
#17
Ukachukwu O Abaraogu, Elochukwu F Ezenwankwo, Ijeoma B Nwadilibe, Geoffrey C Nwafor, Bianca O Ugwuele, Pascal C Uzoh, Ifunanya Ani, Kinsley Amarachineke, Collins Atuma, Obed Ewelunta
BACKGROUND: Heavy backpacks have been associated with various postural changes and consequently musculoskeletal disorders. OBJECTIVE: We evaluated the immediate responses of varying backpack loads on cranio-vertebral angle (CVA), sagittal shoulder angle (SSA) and trunk forward lean (TFL) of young adults between the ages of 18-25 years. METHODS: This was a 3×3 cross over randomized controlled study with repeated measures among a convenience sample of young adults (n = 30; 50% male, 50% female)...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28505663/possible-role-for-recurrent-interactions-between-expansion-and-contraction-cells-in-mstd-during-self-motion-perception-in-dynamic-environments
#18
Oliver W Layton, Brett R Fajen
Cortical area MSTd contains cells sensitive to the radial expansion and contraction motion patterns experienced during forward and backward self-motion. We investigated the open question of whether populations of MSTd cells tuned to expansion and contraction interact through recurrent connectivity, which may play important roles in postural control and resolving heading in dynamic environments. We used a neural model of MSTd to generate predictions about the consequences of different types of interactions among MSTd expansion and contraction cells for heading signals produced in the case of self-motion in the presence of a retreating object-a stimulus that recruits both expansion and contraction MSTd cell populations...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28503540/comparisons-of-incidence-of-spinal-and-lower-extremity-deformities-according-to-the-physical-characteristics-between-sports-major-and-nonmajor-college-students
#19
Jangwon Lee
This research was performed to identify the incidence of spinal and lower extremity deformity and to identify the relationship of the incidence between the physical characteristics. One hundred forty-seven Physical Education major students and 54 nonmajor students participated in this study. Data collecting was performed by questionnaire and visual postural evaluation. The incidences of genu varus (P<0.00001), genu recurvatum (P=0.0007), forward head (P<0.00001), lordosis (P<0.00001), and scoliosis (P=0...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28489651/the-impact-of-cervical-musculoskeletal-disorders-on-uk-consultant-plastic-surgeons-can-we-reduce-morbidity-with-applied-ergonomics
#20
Yvette Godwin, Christopher R Macdonald, Sarbjit Kaur, Li Zhelin, Christopher Baber
BACKGROUND: Based on anecdotal and observational evidence, we hypothesized that the prevalence of cervical musculoskeletal disorder (C-MSD) would be high among plastic surgeons. A questionnaire review was undertaken to test this hypothesis. Ergonomic assessment was undertaken to assess causal factors of C-MSD. METHOD: An anonymous questionnaire recording demographics, physical symptoms and behavioral responses to C-MSD was distributed to UK Plastic Surgery consultants...
June 2017: Annals of Plastic Surgery
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