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postural analysis

Bradley Fawver, Jaimie A Roper, Carolina Sarmento, Chris J Hass
We investigated the impact of initial body position on the displacement and velocity of center of pressure adjustments made during gait initiation. Twenty-nine healthy adults (21 ± 1y) initiated forward gait following six seconds of sustained forward posture based on percentage of their forward maximum voluntary lean (0, 5, 10, 20, 50%). Final center of pressure positions for each trial were back-calculated, as a percentage of maximum voluntary lean, using average anteroposterior constant error to the target during the last second of feedback...
March 17, 2018: Human Movement Science
Ewa Z Gieysztor, Ludwika Sadowska, Anna M Choińska, Małgorzata Paprocka-Borowicz
BACKGROUND: The angle of trunk rotation (ATR) is a measurement that allows an objective assessment of a growing child's spine. Early detection of trunk rotation prevents the progression of scoliosis. One of the factors that predispose children to the formation of faulty posture may be primitive reflexes, which should be integrated in the central nervous system (CNS) by the age of one year. If retained, primitive reflexes affect children's physical development as well as their development at school...
March 14, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Olivia Samotus, Jack Lee, Mandar Jog
BACKGROUND: Botulinum toxin type A (BoNT-A) injections is the accepted first-line therapy for cervical dystonia (CD), however, numerous patients discontinue treatment early due to perceived sub-optimal relief. To improve BoNT-A therapy for CD, proper assessment of neck motion and selection of relevant muscles and dosing must be met. Kinematic technology may improve treatment outcomes by guiding physicians to better tailor muscle selection and BoNT-A dosing for CD therapy. METHODS: 28 CD participants were placed into either group: expert injector determined injection patterns by visual assessment ("vb") versus injection patterns based on kinematics interpreted by an expert injector ("kb")...
March 20, 2018: Journal of Neurology
Carlos Pomares-Noguera, Francisco Ayala, Francisco Javier Robles-Palazón, Juan F Alomoto-Burneo, Alejandro López-Valenciano, José L L Elvira, Sergio Hernández-Sánchez, Mark De Ste Croix
Objective: To analyze the training effects of the FIFA 11+ kids on several parameters of physical performance in male youth football players. Materials and methods: Twenty-three youth players were randomized within each team into two groups (control vs. intervention). The intervention group performed the FIFA 11+ kids programme 2 times a week for 4 weeks; the control groups completed their normal warm-up routines. Thirteen physical performance measures {range of motion (hip, knee, and ankle joints), dynamic postural control (measured throughout the Y balance test), 20 m sprint time, slalom dribble with a ball, agility, vertical jumping height [counter movement jump (CMJ) and drop jump (DJ)], horizontal jump distance, accuracy when volleying a ball [measured throughout the Wall Volley test]} were assessed...
2018: Frontiers in Pediatrics
Joanna Bartnicka, Agnieszka A Zietkiewicz, Grzegorz J Kowalski
PURPOSE: With reference to four different minimally invasive surgery (MIS) cholecystectomy the aims were: to recognize the factors influencing dominant wrist postures manifested by the surgeon; to detect risk factors involved in maintaining deviated wrist postures; to compare the wrist postures of surgeons while using laparoscopic tools. MATERIALS AND METHODS: Video films were recorded during live surgeries. The films were synchronized with wrist joint angles obtained from wireless electrogoniometers placed on the surgeon's hand...
March 19, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
Yuta Ogata, Masaya Anan, Makoto Takahashi, Takuya Takeda, Kenji Tanimoto, Tomonori Sawada, Koichi Shinkoda
OBJECTIVES: The purpose of this study was to investigate between movement patterns of trunk extension from full unloaded flexion and lifting techniques, which could provide valuable information to physical therapists, doctors of chiropractic, and other manual therapists. METHODS: A within-participant study design was used. Whole-body kinematic and kinetic data during lifting and full trunk flexion were collected from 16 healthy male participants using a 3-dimensional motion analysis system (Vicon Motion Systems)...
March 2018: Journal of Manipulative and Physiological Therapeutics
Laura Wallard, Sophie Boulet, Olivier Cornu, Jean-Emile Dubuc, Philippe Mahaudens, Didier Postlethwaite, Maïté Van Cauter, Christine Detrembleur
BACKGROUND: The gait mechanism requires an efficient intersegmental coordination in order to ensure the displacement of the body while simultaneously maintaining the postural stability. However, intersegmental coordination may be disrupted by neurological or orthopaedic involvement, this increasing the metabolic cost associated with excessive or prolonged muscle co-contraction. RESEARCH QUESTION: Our aim was to evaluate and to understand how hip OA affects lower limbs coordination during gait by using the kinematic segmental covariation law method and predict the energy expenditure...
March 7, 2018: Gait & Posture
Dong-Eun Lee, Sang-Min Seo, Hee-Soon Woo, Sung-Yun Won
[Purpose] This study set out to substantiate the importance of the right sitting posture by measuring the sitting pressure. It also described the influence of an imbalanced sitting posture on the body. [Subjects and Methods] The subjects included 30 healthy adults. A pressure mapping system was used to measure the sitting pressure in the right, one side prone, chin propped, and slumped sitting positions. [Results] The WDI (XAP ) showed a statistically significant difference between the 3 incorrect postures (one side prone, chin propped, and slumped sitting) and the right sitting posture...
February 2018: Journal of Physical Therapy Science
Deed E Harrison, Paul A Oakley, Joseph W Betz
[Purpose] To present the case of the dramatic reduction in pain, disability, and neurologic symptoms following the reduction of forward head translation and increased cervical curvature in a patient suffering from post-surgical radiculopathy. [Subject and Methods] A 52-year-old male mechanic presented with chronic neck pain, unilateral paresthesia along the C5 and C6 dermatome distributions and diminished unilateral grip strength for 12 years following a C5-C6 cervical discectomy and fusion. Outcome measures included the neck disability index, the numerical pain rating scale, and the Zebris cervical range of motion system...
February 2018: Journal of Physical Therapy Science
Chris Brogden, Kelly Marrin, Richard Page, Matt Greig
CONTEXT: Clinical and functional assessments are performed regularly in sporting environments to screen for performance deficits and injury risk. Circadian rhythms have been demonstrated to affect human performance, however the influence of time of day on a battery of multiple ankle injury risk factors has yet to be established within athletic populations. OBJECTIVES: To investigate the influence of circadian variation on a battery of tests, used to screen for ankle aetiological risk factors...
March 15, 2018: Journal of Sport Rehabilitation
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
Kishore P Madhwani, P K Nag
Background: Use of laptops and hand-held devices increase the risk of musculoskeletal disorders (MSDs). More time spent on this activity adopting faulty postures, higher the risk of developing such injuries. This study addresses training on office ergonomics with emphasis on sustainable behavior change among employees to work in safe postures, as this is a top priority in the corporate environment, today. Aim: To explore training intervention methods that ensure wider coverage of awareness on office ergonomics, thereby promoting safer working and suggesting sustainable programs for behavior change and job enrichment...
May 2017: Indian Journal of Occupational and Environmental Medicine
Rachel R Horsley, Tomáš Páleníček, Jan Kolin, Karel Valeš
Short-term moderate doses of serotonergic and dissociative hallucinogens can be useful in the treatment of anxiety. Recently, a trend has developed for long-term intermittent 'microdosing' (usually one-tenth of a 'full' active dose), with reports of long-lasting relief from anxiety and related disorders; however, there is no scientific evidence for the efficacy of therapeutic microdosing nor to show its lasting effects. The objective of this study was to test for lasting effects on anxiety in rats after microdosing with ketamine or psilocin...
March 13, 2018: Behavioural Pharmacology
Kimiya Fujio, Hiroki Obata, Taku Kitamura, Noritaka Kawashima, Kimitaka Nakazawa
Recent studies demonstrated that the corticospinal pathway is one of the key nodes for the feedback control of human standing and that the excitability is flexibly changed according to the current state of posture. However, it has been unclear whether this pathway is also involved in a predictive control of human standing. Here, we investigated whether the corticospinal excitability of the soleus (SOL) and tibialis anterior (TA) muscles during standing would be modulated anticipatorily when perturbation was impending...
2018: Frontiers in Human Neuroscience
Lejo Johnson Chacko, Dominik T Schmidbauer, Stephan Handschuh, Alen Reka, Karl D Fritscher, Patrik Raudaschl, Rami Saba, Michael Handler, Peter P Schier, Daniel Baumgarten, Natalie Fischer, Elisabeth J Pechriggl, Erich Brenner, Romed Hoermann, Rudolf Glueckert, Anneliese Schrott-Fischer
Stable posture and body movement in humans is dictated by the precise functioning of the ampulla organs in the semi-circular canals. Statistical analysis of the interrelationship between bony and membranous compartments within the semi-circular canals is dependent on the visualization of soft tissue structures. Thirty-one human inner ears were prepared, post-fixed with osmium tetroxide and decalcified for soft tissue contrast enhancement. High resolution X-ray microtomography images at 15 μm voxel-size were manually segmented...
2018: Frontiers in Neuroscience
Jacqueline C Outermans, Ingrid van de Port, Gert Kwakkel, Johanna M Visser-Meily, Harriet Wittink
BACKGROUND: Reports on the association between aerobic capacity and walking capacity in people after stroke show disparate results. AIM: To determine (1) if the predictive validity of peak oxygen uptake (VO2peak) for walking capacity post stroke is different from that of maximal oxygen uptake (VO2max) and (2) if postural control, hemiplegic lower extremity muscle strength, age and gender distort the association between aerobic capacity and walking capacity. DESIGN: Cross-sectional study...
March 12, 2018: European Journal of Physical and Rehabilitation Medicine
Emma B Garrison, Jonathan Dropkin, Rebecca Russell, Paul Jenkins
Agricultural workers perform tasks that frequently require awkward and extreme postures that are associated with musculoskeletal disorders (MSDs). The PATH (Posture, Activity, Tools, Handling) system currently provides a sound methodology for quantifying workers' exposure to these awkward postures on an ordinal scale of measurement, which places restrictions on the choice of analytic methods. This study reports a modification of the PATH methodology that instead captures these postures as degrees of flexion, an interval-scaled measurement...
January 29, 2018: Journal of Agricultural Safety and Health
Marco Bordignon, Maurizio Cutini, Carlo Bisaglia, Paolo Taboga, Francesco Marcolin
Professional drivers have been found to be at a high risk of developing low back pain due to prolonged sitting and vehicle vibration. In a previous survey carried out on 1,155 tractor drivers, tractor vibration and/or incorrect posture while driving were found to cause low back disorders in more than 80% of the interviewed drivers. In this context, the present research introduces a new evaluation protocol to assess the ergonomic characteristics of agricultural tractor seats through the use of pressure sensors, taking into account both static and dynamic conditions...
January 29, 2018: Journal of Agricultural Safety and Health
M Parra-Moreno, J J Rodríguez-Juan, J D Ruiz-Cárdenas
INTRODUCTION: Commercial video games are considered an effective tool to improve postural balance in different populations. However, the effectiveness of these video games for patients with multiple sclerosis (MS) is unclear. OBJECTIVES: To analyse existing evidence on the effects of commercial video games on postural balance in patients with MS. MATERIAL AND METHOD: We conducted a systematic literature search on 11 databases (Academic-Search Complete, AMED, CENTRAL, CINAHL, WoS, IBECS, LILACS, Pubmed/Medline, Scielo, SPORTDiscus, and Science Direct) using the following terms: "multiple sclerosis", videogames, "video games", exergam*, "postural balance", posturography, "postural control", balance...
March 7, 2018: Neurología: Publicación Oficial de la Sociedad Española de Neurología
Fernando Domínguez-Navarro, Celedonia Igual-Camacho, Antonio Silvestre-Muñoz, Sergio Roig-Casasús, José María Blasco
BACKGOUND: Balance and proprioceptive deficits are frequently persistent after total joint replacement, limiting functionality and involving altered movement patterns and difficulties in walking and maintaining postural control among patients. RESEARCH QUESTION: The goal of this systematic review was to evaluate the short- and mid-term effects of proprioceptive and balance training for patients undergoing total knee and hip replacement. METHODS: This is a systematic review of literature...
March 5, 2018: Gait & Posture
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