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Postural deviations

Tristan Martin, Antoine Gauthier, Zhang Ying, Nicolas Benguigui, Sebastien Moussay, Jan Bulla, Damien Davenne, Nicolas Bessot
The aim of the study was to test the effect of total sleep deprivation on performance and time-of-day pattern of Subjective Visual Vertical (SVV) and postural control. Nineteen healthy young participants (4 females and 15 males 21.9 {plus minus} 1.2 years) were engaged in two counterbalanced experimental sessions with or without total sleep deprivation. Oral temperature, Karolinska sleepiness scale and visual analogic scale for fatigue, postural control and SVV were randomly measured every 4h, from 6:00 h to 22:00 h...
March 15, 2018: Journal of Applied Physiology
Joshua L Haworth, Adam J Strang, Mathias Hieronymus, Mark S Walsh
BACKGROUND AND AIM: Many people use balance training as a rehabilitation or habilitation modality. Although the time course of changes to temporal and spatial aspects of postural sway over the initial weeks of such training is as yet unclear. Particularly, we sought to explore the effects of training on sway during a dynamic task of stance on an ultra-compliant surface. Such a task provides different mechanical, and thus sensorimotor, constraints compared to stance on a solid surface...
March 15, 2018: Somatosensory & Motor Research
Andrew K Buldt, Jamie J Allan, Karl B Landorf, Hylton B Menz
BACKGROUND: Foot posture is a risk factor for some lower limb injuries, however the underlying mechanism is not well understood. Plantar pressure analysis is one technique to investigate the interaction between foot posture and biomechanical function of the lower limb. RESEARCH QUESTION: The aim of this review was to investigate the relationship between foot posture and plantar pressure during walking. METHODS: A systematic database search was conducted using MEDLINE, CINAHL, SPORTDiscus and Embase to identify studies that have assessed the relationship between foot posture and plantar pressure during walking...
February 23, 2018: Gait & Posture
Dariusz Czaprowski, Łukasz Stoliński, Marcin Tyrakowski, Mateusz Kozinoga, Tomasz Kotwicki
Background: The physiological sagittal spinal curvature represents a typical feature of good body posture in the sagittal plane. The cervical and the lumbar spine are curved anteriorly (lordosis), while the thoracic segment is curved posteriorly (kyphosis). The pelvis is inclined anteriorly, and the lower limbs' joints remain in a neutral position. However, there are many deviations from the optimal body alignment.The aim of this paper is to present the most common types of non-structural misalignments of the body posture in the sagittal plane...
2018: Scoliosis and Spinal Disorders
Hongmin Chu, Jaehyun Kim, Wonbae Ha, Eunbyul Cho, Geon Kang, Seongjun Park, Jongwon Jang, Seung Bum Yang, Yeonseok Kang, Sanghun Lee, Jae-Hyo Kim
Acupoint GB21 (Jianjing) is used for treating back and shoulder pain but is associated with a risk of pneumothorax. We aimed to determine the SND (safe needling depth) at GB21 according to posture and breathing in real time. Ultrasonographic images of GB21 during normal breathing, inspiration, and expiration in a SP (sitting position) were acquired for 52 healthy volunteers. Images were also acquired during normal respiration in the PP (prone position) with arms raised and lowered. The average SND was greater for men than for women ( p < 0...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
B B Partido, B M Wright
INTRODUCTION: Dental professionals are at high risk of musculoskeletal disorders (MSDs) due to static working positions for extended periods of time. Musculoskeletal pain has been identified as early as during their entry-level dental education. The purpose of this study was to determine whether feedback involving photography and self-assessment would improve ergonomic scores and the accuracy of ergonomic self-assessments amongst dental students. MATERIALS AND METHODS: The study involved a randomised control design of 135 dental students...
March 2, 2018: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
Sarah M Coppola, Michael Y C Lin, John Schilkowsky, Pedro M Arezes, Jack T Dennerlein
Tablet computers' hardware and software designs may affect upper extremity muscle activity and postures. This study investigated the hypothesis that forearm muscle activity as well as wrist and thumb postures differ during simple gestures across different tablet form factors and touchscreen locations. Sixteen adult (8 female, 8 male) participants completed 320 tablet gestures across four swipe locations, with various tablet sizes (8″ and 10"), tablet orientations (portrait and landscape), swipe orientations (vertical and horizontal), and swipe directions (medial and radial)...
May 2018: Applied Ergonomics
Daniel J Goble, Ehran Khan, Harsimran S Baweja, Shawn M O'Connor
Changes in postural sway measured via force plate center of pressure have been associated with many aspects of human motor ability. A previous study validated the accuracy and precision of a relatively new, low-cost and portable force plate called the Balance Tracking System (BTrackS). This work compared a laboratory-grade force plate versus BTrackS during human-like dynamic sway conditions generated by an inverted pendulum device. The present study sought to extend previous validation attempts for BTrackS using a more traditional point of application (POA) approach...
February 8, 2018: Journal of Biomechanics
Joseph W Betz, Paul A Oakley, Deed E Harrison
[Purpose] To present the clinically significant improvement of straight back syndrome (SBS) in a patient with spinal pain and exertional dyspnea. [Subject and Methods] A 19 year old presented with excessive thoracic hypokyphosis and other postural deviations. A multimodal CBP® mirror image® protocol of corrective exercises, traction procedures and spine/posture adjusting were given over an initial 12-week course of intensive treatment followed by a 2.75 year follow-up with minimal supportive treatment...
January 2018: Journal of Physical Therapy Science
Dario d'Ovidio, Francesco Marino, Emilio Noviello, Enrico Lanaro, Paolo Monticelli, Chiara Adami
OBJECTIVE: To evaluate the efficacy and side effects of alfaxalone administered intramuscularly (IM) as a sedative agent in guinea pigs undergoing survey radiographs. STUDY DESIGN: Prospective clinical trial. ANIMALS: A total of 30 client-owned guinea pigs. METHODS: Following baseline assessments, 5 mg kg-1 alfaxalone was administered IM. Heart rate, arterial haemoglobin oxygen saturation, respiratory rate, rectal body temperature, palpebral reflex, response to toe and ear pinch, righting reflex, posture, jaw tone and reaction to manipulation were assessed before and after sedation at 5-minute intervals...
September 18, 2017: Veterinary Anaesthesia and Analgesia
Rahil Mehrizi, Xi Peng, Xu Xu, Shaoting Zhang, Dimitris Metaxas, Kang Li
Work-related musculoskeletal disorders (WMSD) are commonly observed among the workers involved in material handling tasks such as lifting. To improve work place safety, it is necessary to assess musculoskeletal and biomechanical risk exposures associated with these tasks. Such an assessment has been mainly conducted using surface marker-based methods, which is time consuming and tedious. During the past decade, computer vision based pose estimation techniques have gained an increasing interest and may be a viable alternative for surface marker-based human movement analysis...
January 12, 2018: Journal of Biomechanics
Pan-Pan Hu, Miao Yu, Xiao-Guang Liu, Zhong-Qiang Chen, Zhong-Jun Liu
BACKGROUND: Previously, the sagittal spinal balance in both asymptomatic and scoliotic Caucasian people has been characterized and compared. Very recently, the sagittal spino-pelvic parameters among asymptomatic Chinese adults have been studied, and the results were compared with Caucasian adults, indicating that a difference did exist. Unfortunately, the distribution of sagittal standing posture patterns among the Chinese population has not been characterized in either asymptomatic or scoliotic groups...
February 2, 2018: BMC Musculoskeletal Disorders
B Kiefer-Hecker, E Kienzle, B Dobenecker
To investigate the impact of a selective reduction in dietary phosphorus (P) supply on healthy growing dogs, a total of 23 Beagles and 30 Foxhound crossbreds (FBI) were used in a feeding trial between 6 and 24 weeks of age. Sixteen Beagles and 19 FBI were fed with selectively reduced P concentrations (low phosphorus, LP). The remaining puppies received a completely balanced control diet (CON). With these diets, the P supply in the Beagles at the age of 12 weeks added up to 2.5 ± 0.6 (LP) and 9.8 ± 1...
February 2, 2018: Journal of Animal Physiology and Animal Nutrition
Young Eun Huh, Kunhyun Kim, Won-Ho Chung, Jinyoung Youn, Seonwoo Kim, Jin Whan Cho
We elucidated whether verticality misperception is associated with the generation of Pisa syndrome (PS) in patients with Parkinson's disease (PD). To examine the heterogenous influence of verticality perception, we also identified the characteristics distinguishing between PD patients with PS who tilted toward the deviation of perceived verticality and those who did not. Subjective visual vertical (SVV) testing was performed in 54 PD patients with PS and 36 without PS to measure verticality perception. Other potential risk factors for PS were evaluated by assessing the asymmetry of motor symptoms, EMG activities of paraspinal muscles, bithermal caloric tests, back pain history, and Berg Balance Scale...
January 29, 2018: Scientific Reports
Leslie Palma Gorski, Adriana Marques da Silva, Flávia Salvaterra Cusin, Suelen Cesaroni, Mauricio Malavasi Ganança, Heloisa Helena Caovilla
INTRODUCTION: Migraine is one of the most frequent and incapacitating headaches, with a high degree of impairment in quality of life. Its association with vestibular symptoms is common, including imbalance and postural instability. OBJECTIVE: To evaluate the body balance of patients with vestibular migraine through a static posturography test. METHODS: An experimental group of 31 patients with a medical diagnosis of vestibular migraine in the intercritical period of the disease, and a control group of 31 healthy individuals, matched for age and gender, were submitted to the eight sensory conditions of the Tetrax Interactive Balance System...
December 27, 2017: Brazilian Journal of Otorhinolaryngology
Patricia Tegtmeier
BACKGROUND: Smart mobile devices gain increasing importance at work. Integrating these smart mobile devices into the workplace creates new opportunities and challenges for occupational health and safety. OBJECTIVES: Therefore the aim of the following scoping review was to identify ergonomic challenges with the use of smart mobile devices at work with respect to physical problems. METHOD: A review of 36 papers based on literature including January 2016 was conducted...
January 19, 2018: Work: a Journal of Prevention, Assessment, and Rehabilitation
Jason Curran, Rachel Cliff, Nadine Sinnen, Michael Koehle, Chris Carlsten
Recent epidemiological evidence connects ambient air pollutants to adverse neurobehavioural effects in adults. In animal models, subchronic controlled exposures to diesel exhaust (DE) have also showed evidence of neuroinflammation. Evidence suggests that DE not only affects outcomes commonly associated with cognitive dysfunction, but also balance impairment. We conducted a controlled human exposure experiment with 28 healthy subjects (average age = 28 years (SD = 7.1; range = 21-49); and 40% female) who were exposed to two conditions, filtered air (FA) and DE (300 μg PM2...
2018: Journal of Occupational Medicine and Toxicology
Y P Li, W Zhang, J Ding, H Z Ma, K X Zhao
Objective: To investigate the efficacy of Knapp procedure and modified Knapp procedure with Foster suture in the treatment of double elevator palsy(DEP). Methods: Retrospective study. Twenty-two patients with congenital DEP were underwent Knapp procedure (n=15) and modified Knapp procedure(n=7). The clinical data were retrospectively analyzed, including the preoperative and postoperative vertical deviation in the primary position, ocular motility, and binocular vision. Results: The average vertical deviation in the primary position was (34...
December 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Clement P Provost, Sophie Tasseel-Ponche, Pierre Lozeron, Giulia Piccinini, Victorine Quintaine, Bertrand Arnulf, Nathalie Kubis, Alain P Yelnik
OBJECTIVE: To investigate the weight of visual and proprioceptive inputs, measured indirectly in standing position control, in patients with chronic acquired demyelinating polyneuropathy (CADP). DESIGN: Prospective case study. SUBJECTS: Twenty-five patients with CADP and 25 healthy controls. METHODS: Posture was recorded on a double force platform. Stimulations were optokinetic (60°/s) for visual input and vibration (50 Hz) for proprioceptive input...
January 9, 2018: Journal of Rehabilitation Medicine
Amir Abbas Ebrahimi, Ali Ashraf Jamshidi, Guita Movallali, Mehdi Rahgozar, Hojjat Allah Haghgoo
The purpose of this study was to determine the effect of vestibular rehabilitation therapy program on the sensory organization of deaf children with bilateral vestibular dysfunction. This cross-sectional and analytic study was conducted on 24 students between the age of 7 and 12 years (6 girls and 18 boys) with the profound sensorineural hearing loss (PTA>90 dB). They were assessed through the balance subtest in Bruininks-Oseretsky test of motor proficiency (BOTMP). For children which the total score of the balance subtest was 3 standard deviation lower than their peers with typical development, vestibular function testing was completed pre-intervention...
November 2017: Acta Medica Iranica
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