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https://www.readbyqxmd.com/read/28651215/anticipatory-postural-adjustment-patterns-during-gait-initiation-across-the-adult-lifespan
#1
Chiahao Lu, Sommer L Amundsen Huffmaster, Jack C Harvey, Colum D MacKinnon
Gait initiation involves a complex sequence of anticipatory postural adjustments (APAs) during the transition from steady state standing to forward locomotion. APAs have four core components that function to accelerate the center of mass forwards and towards the initial single-support stance limb. These components include loading of the initial step leg, unloading of the initial stance leg, and excursion of the center of pressure in the posterior and lateral (towards the stepping leg) directions. This study examined the incidence, magnitude, and timing of these components and how they change across the lifespan (ages 20-79)...
June 16, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28644064/frequent-vomiting-attacks-in-a-patient-with-lhermitte-duclos-disease-a-rare-pathophysiology-of-cerebellar-lesions
#2
Chika Somagawa, Tomonori Ono, Ryoko Honda, Hiroshi Baba, Takeshi Hiu, Ryujiro Ushijima, Keisuke Toda, Kei Sato, Masahiro Ito, Keisuke Tsutsumi
Lhermitte-Duclos disease (LDD) is a neurological disease caused by a hamartomatous lesion in the cerebellum. Clinically, LDD is commonly associated with progressive space-occupying lesion effects in the posterior fossa, increasing intracranial pressure, occlusive hydrocephalus, and focal neurological deficits of adjacent structures. The authors report the case of a 10-year-old boy with LDD who had been suffering from vomiting attacks (VAs). These VAs had been brief in duration but extremely frequent, and they had been resistant to antiemetic drugs since the early postnatal period...
June 23, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28628386/comparison-of-path-length-and-ranges-of-movement-of-the-center-of-pressure-and-reaction-time-and-between-paired-play-and-solo-play-of-a-virtual-reality-game
#3
Sigal Portnoy, Ayelet Hersch, Tal Sofer, Sarit Tresser
AIMS: To test whether paired-play will induce longer path length and ranges of movement of the center of pressure (COP), which reflects on balance performance and stability, compared to solo-play and to test the difference in the path length and ranges of movement of the COP while playing the virtual reality (VR) game with the dominant hand compared to playing it with the nondominant hand. METHODS: In this cross-sectional study 20 children (age 6.1 ± 0.7 years old) played an arm movement controlled VR game alone and with a peer while each of them stood on a pressure measuring pad to track the path length and ranges of movement of the COP...
June 2017: Games for Health
https://www.readbyqxmd.com/read/28626324/lower-trunk-muscle-activity-induced-alignment-and-cop-position-during-single-leg-standing
#4
Tetsuya Nakao, Kenichi Masuda, Shigeyuki Kanai, Junzo Tsujita, Kazufumi Hirakawa, Shuichi Okada
[Purpose] The purpose of this study was to clarify fundamental changes induced by lower trunk muscle contraction during single-leg standing. [Subjects and Methods] Ten healthy normal males participated in this study. All subjects could accurately perform lower trunk muscle contraction-type Abdominal Expansion (AE), Abdominal Bracing (AB), and Abdominal Cave-in (AC). The alignment and position of the center of foot pressure (COP) during single-leg standing with SLR and step position after rotating the body from single-leg standing with maximum SLR were measured in each lower trunk muscle contraction type...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28605220/age-stratification-and-sample-entropy-analysis-enhance-the-limits-of-stability-test-for-older-adults
#5
Senia Smoot Reinert, Allison L Kinney, Kurt Jackson, Wiebke Diestelkamp, Kimberly Bigelow
The objective of this study was to determine if a foam testing condition and/or non-linear analysis methods can be used to identify differences between age stratified sub groups of older adults when conducting the Limits of Stability assessment. Ninety older adults participated in this study. A force plate was used to record center of pressure data during Limits of Stability testing on a firm and foam surface. Participants were grouped into three age-stratified sub-groups: young-old (60-69 years), middle-old (70-79 years), and old-old (80+ years)...
June 12, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28601564/angle-of-gaze-and-optic-flow-direction-modulate-body-sway
#6
Milena Raffi, Alessandro Piras, Michela Persiani, Monica Perazzolo, Salvatore Squatrito
Optic flow is a crucial signal in maintaining postural stability. We sought to investigate whether the activity of postural muscles and body sway was modulated by eye position during the view of radial optic flow stimuli. We manipulated the spatial distribution of dot speed and the fixation point position to simulate specific heading directions combined with different gaze positions. The experiments were performed using stabilometry and surface electromyography (EMG) on 24 right-handed young, healthy volunteers...
August 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28583462/decreased-anticipatory-postural-adjustments-during-gait-initiation-acutely-post-concussion
#7
Thomas A Buckley, Jessie R Oldham, Barry A Munkasy, Kelsey E Evans
OBJECTIVE: The purpose of this study was to investigate anticipatory postural adjustments (APA) during the transitional movement task of gait initiation (GI) in individuals acutely following a concussion. DESIGN: Cohort Study. SETTING: University Research Center. PARTICIPANTS: A population based sample of 84 participants divided into two equal groups of acutely post-concussion (CONC) and healthy student athletes. INTERVENTION: Participants were tested on two occasions - a pre-injury baseline test and then the CONC group was retested acutely post-concussion and the control group again at a similar time...
June 2, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28558147/safety-and-efficacy-of-a-bioabsorbable-fluticasone-propionate-eluting-sinus-dressing-in-postoperative-management-of-endoscopic-sinus-surgery-a-randomized-clinical-trial
#8
Gwijde F J P M Adriaensen, Keng-Hua Lim, Wytske J Fokkens
BACKGROUND: Postoperative wound healing after endoscopic sinus surgery (ESS) in patients with chronic rhinosinusitis (CRS) is an important factor in procedural success. Local steroids and separation of opposing mucosa are commonly implemented to optimize healing. A bioabsorbable, fluticasone propionate (FP)-eluting implant, SinuBand FP, was assessed for its safety and efficacy when used in patients with CRS and nasal polyps, who were indicated for ESS including bilateral anterior and posterior ethmoidectomy...
May 30, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28551292/clinical-outcomes-of-patients-with-acute-basilar-artery-occlusion-in-brazil-an-observational-study
#9
Francisco Antunes Dias, Frederico Fernandes Alessio-Alves, Luis Henrique Castro-Afonso, Pedro Telles Cougo, Clara Monteiro Antunes Barreira, Millene Rodrigues Camilo, Guilherme Seizem Nakiri, Daniel Giansante Abud, Octavio Marques Pontes-Neto
BACKGROUND: Intravenous thrombolysis (IVT) and endovascular therapy (EVT) were proven safe and effective for anterior circulation proximal occlusions. However, the most appropriate recanalization strategy in patients with acute basilar artery occlusion (BAO) is still controversial. This study aimed to assess outcomes of patients with BAO at an academic stroke center in Brazil. METHODS: This is a retrospective analysis of consecutive patients with BAO from a prospective stroke registry at Ribeirão Preto Medical School...
May 24, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28549604/effects-of-eight-different-ligament-property-datasets-on-biomechanics-of-a-lumbar-l4-l5-finite-element-model
#10
S Naserkhaki, N Arjmand, A Shirazi-Adl, F Farahmand, M El-Rich
Ligaments assist trunk muscles in balancing external moments and providing spinal stability. In absence of the personalized material properties for ligaments, finite element (FE) models use dispersed data from the literature. This study aims to investigate the relative effects of eight different ligament property datasets on FE model responses. Eight L4-L5 models distinct only in ligament properties were constructed and loaded under moment (15Nm) alone or combined with a compressive follower load (FL). Range of motions (RoM) of the disc-alone model matched well in vitro data...
May 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28520685/pelvic-fracture-pattern-predicts-the-need-for-hemorrhage-control-intervention-results-of-an-aast-multi-institutional-study
#11
Todd W Costantini, Raul Coimbra, John B Holcomb, Jeanette M Podbielski, Richard D Catalano, Allie Blackburn, Thomas M Scalea, Deborah M Stein, Lashonda Williams, Joseph Conflitti, Scott Keeney, Christy Hoey, Tianhua Zhou, Jason Sperry, Dimitra Skiada, Kenji Inaba, Brian H Williams, Joseph P Minei, Alicia Privette, Robert C Mackersie, Brenton R Robinson, Forrest O Moore
BACKGROUND: Early identification of patients with pelvic fractures at risk of severe bleeding requiring intervention is critical. We performed a multi-institutional study to test our hypothesis that pelvic fracture patterns predict the need for a pelvic hemorrhage control intervention. METHODS: This prospective, observational, multicenter study enrolled patients with pelvic fracture due to blunt trauma. Inclusion criteria included shock on admission (systolic blood pressure <90 mm Hg or heart rate >120 beats/min and base deficit >5, and the ability to review pelvic imaging)...
June 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28501732/asymmetrical-stabilization-and-mobilization-exploited-during-static-single-leg-stance-and-goal-directed-kicking
#12
Adam C King, Zheng Wang
The motor control properties of the right and left legs are dependent on the stabilization and mobilization features of the motor tasks. The current investigation examined the right and left leg control differences - interlateral asymmetries - during static single leg stance and dynamic goal directed kicking with an emphasis of the asymmetrical stabilization and mobilization components of movements. Ten young, healthy, right-leg preferred individuals with minimal kicking experience completed both tests on each limb...
May 11, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28477042/unintentional-drifts-during-quiet-stance-and-voluntary-body-sway
#13
Omid Rasouli, Stanisław Solnik, Mariusz P Furmanek, Daniele Piscitelli, Ali Falaki, Mark L Latash
We explored unintentional drifts in voluntary whole-body sway tasks following the removal of visual feedback. The main hypothesis was that the unintentional drifts were produced by drifts of referent coordinates for salient performance variables. Young healthy subjects stood quietly on a force platform and also performed voluntary body sway at 0.5 Hz both in the anterio-posterior and medio-lateral directions. Visual feedback on the center of pressure (COP) coordinate was provided and then turned off. During quiet stance trials, the subjects matched the initial COP coordinate with a target shifted by 3 cm anterior, posterior, left, or right from the coordinate during natural standing and activated the right tibialis anterior to 30% of its maximal voluntary contraction...
May 5, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28458148/postural-control-strategies-differ-in-normal-weight-and-overweight-infants
#14
Danae Dinkel, Kailey Snyder, Victoria Molfese, Anastasia Kyvelidou
BACKGROUND: Evidence suggests obesity can have a negative influence on a child's motor development and postural control behavior. Little research has examined the impact of infant weight on gross motor behavior, particularly postural control at the onset of sitting. OBJECTIVE: The purpose of this study was to determine whether normal weight and overweight infants differed in their postural control strategies at the onset of sitting and one-month post onset of sitting...
April 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28451603/balance-markers-in-adolescents-at-1-month-postconcussion
#15
Coralie Rochefort, Coren Walters-Stewart, Mary Aglipay, Nick Barrowman, Roger Zemek, Heidi Sveistrup
BACKGROUND: The Balance Error Scoring System (BESS) shows that balance tends to recover within days after a concussion, whereas measures of the movement of the center of pressure (COP) show that balance deficits can persist up to 1 month after concussion. While approximately 30% of adolescents suffering concussion have functional consequences including balance deficits, evidence of the use of different balance assessments for concussion is limited within this population. PURPOSE: To compare performance on a series of balance assessments between adolescents with a diagnosed concussion at 1 month postinjury and noninjured control participants within the same age distribution...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28435210/incidence-of-interface-fluid-syndrome-after-laser-in-situ-keratomileusis-in-egyptian-patients
#16
Amr A Gab-Alla
PURPOSE: To determine the incidence of interface fluid syndrome (IFS) secondary to steroid-induced elevation of intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) in myopic Egyptian patients. METHODS: This retrospective case series study was conducted at El-Gowhara Private Eye Center. The medical records of 1,807 patients (3,489 eyes), who underwent LASIK to correct myopia from April 2012 to December 2015 were included. The patients were operated on and reviewed by one surgeon (AAG) for IFS after LASIK associated with elevation of IOP (as compared to preoperative values)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28418539/ophthalmic-manifestations-of-congenital-zika-syndrome-in-colombia-and-venezuela
#17
Juan B Yepez, Felipe A Murati, Michele Pettito, Carlos F Peñaranda, Jazmin de Yepez, Gladys Maestre, J Fernando Arevalo
Importance: The ocular manifestations and sequelae of Zika virus infection are not well known. Recently, the World Health Organization changed the declaration of Zika as a public health emergency and designated the viral outbreak and related microcephaly clusters as a long-term program of work. This change indicates the urgent need to evaluate and document ophthalmic manifestations in patients for timely management of this disease. In addition, confirmation whether the public health problem in Brazil extends to other regions in South America is needed...
May 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28407522/physiological-arousal-accompanying-postural-responses-to-external-perturbations-after-stroke
#18
C L Pollock, M G Carpenter, M A Hunt, A Gallina, T M Vieira, T D Ivanova, S J Garland
OBJECTIVE: The purpose of this study was to examine simultaneously the level of physiological arousal and the postural response to external perturbations in people post-stroke compared to age-matched controls to build a more comprehensive understanding of the effect of stroke on postural control and balance self-efficacy. METHODS: Participants stood with each foot on separate force platforms. Ten applications of loads of 2% body weight at the hips perturbed the participant anteriorly under two conditions: investigator-triggered or self-triggered (total 20)...
June 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28400724/influence-of-cervical-spine-mobility-on-the-focal-and-postural-components-of-the-sit-to-stand-task
#19
Alain Hamaoui, Caroline Alamini-Rodrigues
The aim of this study was to determine the influence of cervical spine mobility on the focal and postural components of the sit-to-stand transition, which represent the preparatory and execution phases of the task, respectively. Sixteen asymptomatic female participants (22 ± 3 years, 163 ± 0,06 cm, 57,5 ± 5 kg), free of any neurological or musculoskeletal disorders, performed six trials of the sit-to-stand task at maximum speed, in four experimental conditions varying the mobility of the cervical spine by means of three different splints...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28376747/benign-prostatic-enlargement-can-be-influenced-by-metabolic-profile-results-of-a-multicenter-prospective-study
#20
Mauro Gacci, Arcangelo Sebastianelli, Matteo Salvi, Cosimo De Nunzio, Linda Vignozzi, Giovanni Corona, Tommaso Jaeger, Tommaso Chini, Giorgio Ivan Russo, Mario Maggi, Giuseppe Morgia, Andrea Tubaro, Marco Carini, Sergio Serni
BACKGROUND: In last years Metabolic Syndrome (MetS) has been closely associated to Benign Prostatic Enlargement (BPE) Aim of our study is to evaluate the effect of MetS and each single MetS parameter on prostate growth in men surgically treated for BPE. METHODS: Overall, 379 men were prospectively enrolled in two tertiary referral centers. Calculated prostate volume (PV) was measured with transrectal US defining the antero-posterior (AP), the cranio-caudal (CC) and the latero-lateral (LL) diameters through the ellipsoid formula, while raw PV was calculated by suprapubic US...
April 4, 2017: BMC Urology
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