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Kim Erica J EJ Biophysics Graduate Program, University of California, Berkeley, CA 94720-3200, - - 2014
Aerodynamic performance and energetic savings for flight in ground effect are theoretically maximized during hovering, but have never been directly measured for flying animals. We evaluated flight kinematics, metabolic rates and induced flow velocities for Anna's hummingbirds hovering at heights (relative to wing length R = 5.5 cm) of 0.7R, ...
Fang Yuming - - 2014
We propose a novel algorithm to detect visual saliency from video signals by combining both spatial and temporal information and statistical uncertainty measures. The main novelty of the proposed method is twofold. First, separate spatial and temporal saliency maps are generated, where the computation of temporal saliency incorporates a recent ...
Parr Nicholas D ND Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, - - 2014
Cellular phone texting has become increasingly popular, raising the risk of distraction related injuries. The purpose of this study was to compare alterations in gait parameters during normal gait as opposed to walking while texting. Thirty able-bodied young adults (age = 20±2yrs, height = 171±40cm, mass = 61.7±11.2kg) who reported ...
Matsumoto Kazu K Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan, - - 2014
The patterns and magnitudes of axial femorotibial rotation are variable due to the prosthesis design, ligamentous balancing, and surgical procedures. We aimed to investigate the effects of the weight bearing (WB) condition on the kinematics of mobile-bearing total knee arthroplasty (TKA). We examined 12 patients (19 knees) implanted with a ...
Kolev Ognyan I OI University Hospital of Neurology and Psychiatry, 4-th km, Tzarigradsko Shosse Boulevard, 1113 Sofia, Bulgaria. Electronic address: - - 2014
The purpose of this study was to determine (i) if a change in the body position that alters the somatosensory afferentation and thus the signal integrated by sensory interaction influences the illusory self-motion perception evoked by cold calorics. If yes, (ii) is the direction of the provoked nystagmus also changed? ...
Vieira Osvaldo O Jr Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, Av. Prof. Mello Moraes, 65, São Paulo, SP, 05508-030, - - 2014
Interlateral performance asymmetry in upright balance control was evaluated in this investigation by comparing unipedal stance on the right versus the left leg. Participants were healthy young adults, hand-foot congruent preference for the right body side. Balance performance was evaluated in unperturbed quiet stance and in the recovery of balance ...
Hasegawa Tomoyuki - - 2014
According to the guidelines for cardiopulmonary resuscitation (CPR), the rotation time for chest compression should be about 2 min. The quality of chest compressions is related to the physical fitness of the rescuer, but this was not considered when determining rotation time. The present study aimed to clarify associations between ...
Könik Arda A Department of Radiology, University of Massachusetts Medical School, Worcester, MA, - - 2014
The development of methods for correcting patient motion in emission tomography has been receiving increased attention. Often the performance of these methods is evaluated through simulations using digital anthropomorphic phantoms, such as the commonly used extended cardiac torso (XCAT) phantom, which models both respiratory and cardiac motion based on human ...
Sokolov Arseny A AA Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland; Department of Neurosurgery, University of Tübingen Medical School, Tübingen, Germany. Electronic address: - - 2014
Visual perception of body motion is vital for everyday activities such as social interaction, motor learning or car driving. Tumors to the left lateral cerebellum impair visual perception of body motion. However, compensatory potential after cerebellar damage and underlying neural mechanisms remain unknown. In the present study, visual sensitivity to ...
Hayashi Tetsuo T Department of Orthopaedic Surgery, University of California at Los Angeles, Los Angeles, CA, USA, - - 2014
Few studies have reported the characteristics of Modic changes (MCs) in the cervical spine in contrast to the lumbar spine. The purpose of this study was to identify the prevalence of MCs in the cervical spine and to elucidate the relationship of MCs with spinal canal stenosis and angular motion. ...
Weber Alexander E AE *Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI †Leon Root, M.D. Motion Analysis Laboratory ‡Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, - - 2014
The majority of shoulder injuries occur due to repetitive overhead movements, with baseball pitching being the most common mechanism for overuse injury. Before studying the treatment of these shoulder injuries, it is paramount that the health professional have an understanding of the etiology of and the underlying mechanisms for shoulder ...
Trucco A A Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture (DITEN), University of Genoa, Via Opera Pia 11, 16145 Genova, Italy trucco@dibe.unige.it, - - 2014
Linear arrays steered to end-fire provide superdirective robust performance if a constraint is imposed on the white-noise gain. Filter-and-sum beamformers achieve the maximum constrained directivity by tuning their complex weights over the frequency. Delay-and-sum beamformers have simpler structures, but their weights are fixed and optimized at a given frequency. This ...
Alvarsson Jesper J JJ Gösta Ekman Laboratory, Department of Psychology, Stockholm University, SE-10691 Stockholm, - - 2014
Studies of effects on speech intelligibility from aircraft noise in outdoor places are currently lacking. To explore these effects, first-order ambisonic recordings of aircraft noise were reproduced outdoors in a pergola. The average background level was 47 dB LA eq. Lists of phonetically balanced words (LAS max,word = 54 dB) were reproduced simultaneously with ...
Stecker G Christopher GC Department of Speech and Hearing Sciences, University of Washington, 1417 NE 42nd Street, Seattle, Washington - - 2014
The discrimination and lateralization of interaural time differences (ITD) in rapidly modulated high-frequency sounds is dominated by cues present in the initial portion of the sound (i.e., at sound onset). The importance of initial ITD at low frequencies is, however, less clear. Here, ITD discrimination thresholds were measured in 500 Hz ...
Spahn Claudia C Freiburg Institute for Musicians' Medicine, University of Music and University Clinic Freiburg, Breisacherstrasse 60, D-79106 Freiburg, Germany. Tel 0049 761 270-6161, fax 0049 761-270-6169. - - 2014
For violinists, it is common practice to play while standing or sitting. When playing in an orchestra, generally two persons share one music stand, with one sitting to the right and the other to the left of the stand. The present study investigated specific movement patterns while playing in these ...
Mian Omar S OS Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, Queen Square, London WC1N 3BG, United - - 2014
The balance response direction to electrically evoked vestibular perturbation is closely tied to head orientation. Such craniocentric response organization is expected of a simple error correction process. Here we ask whether this is maintained when the body is made more stable, but with the stability being greater in one direction ...
Hackney Amy L AL a Department of Kinesiology , University of Waterloo , Ontario , Canada - - 2014
ABSTRACT When passing through apertures, individuals scale their actions to their shoulder width and rotate their shoulders or avoid apertures that are deemed too small for straight passage. Carrying objects wider than the body produces a person-plus-object system that individuals must account for in order to pass through apertures safely. ...
Williams D S Blaise DS 3rd Commonwealth Sports Medicine, Richmond, - - 2014
Context :  Runners with high medial longitudinal arch structure demonstrate unique kinematics and kinetics that may lead to running injuries. The mobility of the midfoot as measured by the change in arch height is also suspected to play a role in lower extremity function during running. The effect of arch ...
Martínez-Pardo Esmeraldo E 1Research Center for High Performance Sport - UCAM, Universidad Católica San Antonio de Murcia, España 2Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Ciencias de la Actividad Física y del Deporte - UCAM, Universidad Católica San Antonio de Murcia, España 3Chair of Sports Traumatology, Faculty of Health Sciences, Universidad Católica San Antonio de Murcia, - - 2014
The aim of this study was to evaluate the effects of whole-body vibration (WBV) by varying the training frequency (2 or 3 sessions·wk) on the development of strength and power, body composition and mechanical power. Forty-one subjects (32 men and 9 women) recreationally active subjects (21.4 ± 3.0 years old; ...
Chang Yao-Ting YT a Department of Physical Education , National Taiwan Normal University , Taipei , - - 2014
Abstract Push Hand is an advanced training technique for the Yang-style old frame 108 forms Tai Chi Chuan. It is performed by two practitioners. To clarify how people use forces during Push Hand training, it is important to review the ground reaction force (GRF). Here, we quantify the characteristics of ...
van der Hoort Björn B Department of Neuroscience, Karolinska Institutet, Retziusväg 8, 17177, Stockholm, Sweden, - - 2014
Size perception is most often explained by a combination of cues derived from the visual system. However, this traditional cue approach neglects the role of the observer's body beyond mere visual comparison. In a previous study, we used a full-body illusion to show that objects appear larger and farther away ...
D'Amour Sarah S Department of Psychology, Centre for Vision Research, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada, - - 2014
Touches on one hand or forearm can affect tactile sensitivity at contralateral locations on the opposite side of the body. These interactions suggest an intimate connection between the two sides of the body. Here, we explore the effect of masking not across the body but through the body by measuring ...
Amazeen Eric L - - 2014
The effects of box shape--specifically width and height--on the perception of heaviness were evaluated during individual and team lifting. Large objects are perceived to be as much as 50% lighter than smaller objects with the same mass. This size-weight illusion presents an obvious risk when lifting large and heavy boxes. ...
Melišova M M Department of Ethology, Institute of Animal Science, Prague - Uhříněves, Czech Republic, 104 - - 2014
Free farrowing pens (pens) improve the welfare of sows, but may increase sow activity and negatively influence piglet production. The aim of this study was to assess the effect of pens and crates on sow postural changes, piglet trapping, sow responses towards piglet screams, piglet mortality, and piglet body weight ...
Cantú Hiram H Department of Kinesiology and Physical Education, McGill University, Montréal, QC H2W 1S4, Canada; Occupational Biomechanics and Ergonomics Laboratory, Michael Feil and Ted Oberfeld/CRIR Research Centre, Jewish Rehabilitation Hospital, Laval, QC H7V 1R2, - - 2014
Fatigue and additional weight are risk factors of injuries by falls. Posture and trunk movement changes occur with fatigue induced by a repetitive pointing task. These changes facilitate arm movement but they may also jeopardize postural stability. When equilibrium is challenged, e.g. with additional weight, strategies that represent less postural ...
Goodworth Adam David AD University of - - 2014
A multi-link sensorimotor integration model of frontal plane balance control was developed to determine how stance width influences the use of sensory feedback in healthy adults. Data used to estimate model parameters came from seven human participants who stood on a continuously rotating surface with 3 different stimulus amplitudes, with ...
Anzai Mari M Laboratory for Motor Learning Control, RIKEN Brain Science Institute, Hirosawa 2-1, Wako, Saitama, Japan - - 2014
Adaptation of the horizontal vestibulo-ocular reflex (HVOR) provides an experimental model for cerebellum-dependent motor learning. We developed an eye movement measuring system and a paradigm for induction of HVOR adaptation for the common marmoset. The HVOR gain in dark measured by 10° (peak-to-peak amplitude) and 0.11-0.5Hz turntable oscillation was around ...
De Stefani Elisa E Department of Neuroscience, University of Parma, Via Volturno 39, 43100, Parma, - - 2014
The present experiment aimed at verifying whether the spatial alignment effect modifies kinematic parameters of pantomimed reaching-grasping of cups located at reachable and not reachable distance. The cup's handle could be oriented either to the right or to the left, thus inducing a grasp movement that could be either congruent ...
Dijker Anton J M AJ Faculty of Health, Medicine and Life Sciences, Maastricht University, CAPHRI, 6200 MD, Maastricht, The Netherlands, - - 2014
The size-weight illusion (SWI) refers to the phenomenon that objects that are objectively equal in weight but different in size or volume are perceived to differ in weight, such that smaller objects feel heavier than larger ones. This article reviews studies trying to support three different viewpoints with respect to ...
Cochet Hélène H a Laboratory "Cognition, Communication and Development" (Octogone - ECCD, EA 4156) University of Toulouse II , Department of Psychology , Toulouse , - - 2014
ABSTRACT. The authors used frame-by-frame video analyses to describe the features of imperative and declarative pointing gestures produced by young children, in comparison to reaching actions. First, the results showed that imperative pointing shared common features with reaching actions (hand shape, arm extension), but body posture observed in reaching differed ...
Zhou Zhen Z a Human Factors Research Unit, Institute of Sound and Vibration Research , University of Southampton , Southampton , - - 2014
The dependence of biodynamic responses of the seated human body on the frequency, magnitude and waveform of vertical vibration has been studied in 20 males and 20 females. With sinusoidal vibration (13 frequencies from 1 to 16 Hz) at five magnitudes (0.1-1.6 ms(- 2) r.m.s.) and with random vibration (1-16 Hz) at the same ...
Brown T N TN Oak Ridge Institute for Science and Education (ORISE), Belcamp, MD, USA; U.S. Army Natick Soldier Research, Development and Engineering Center, Natick, MA, USA. Electronic address: - - 2014
The purpose of this study was to perform a biomechanics-based assessment of body borne load during the walk-to-run transition and steady-state running because historical research has limited load carriage assessment to prolonged walking. Fifteen male military personnel had trunk and lower limb biomechanics examined during these locomotor tasks with three ...
Buckingham Gavin G Department of Psychology, School of Life Sciences, Heriot-Watt University, Edinburgh, UK, - - 2014
Weight illusions-where one object feels heavier than an identically weighted counterpart-have been the focus of many recent scientific investigations. The most famous of these illusions is the 'size-weight illusion', where a small object feels heavier than an identically weighted, but otherwise similar-looking, larger object. There are, however, a variety of ...
Thielemans Valerie V Department of Kinesiology, KU Leuven, - - 2014
It has been suggested that angular momentum in the horizontal plane during human gait is controlled (i.e., kept minimal). However, this has not been explored in conditions when angular momentum of different segments is manipulated explicitly. In order to examine the behavior of angular momentum, 12 participants walked in 17 ...
Singh Ravindra Pratrap - - 2014
This experimental study investigated the effect of lifting task parameters (i.e., lifting weight, frequency, coupling, asymmetric angle, and vertical, horizontal, and travel distances) for various dynamic human lifting activities on the ground reaction forces of workers. Ten male workers loaded containers from different levels asymmetrically during experimental trials. The experimental ...
Olanrewaju H A HA USDA, Agricultural Research Service, Poultry Research Unit, PO Box 5367, Mississippi State - - 2014
The effects of genetic strain, light intensity, and their interaction were examined on blood physiological variables of broilers maintained in environmentally controlled rooms in each of 5 trials. The study consisted of a 2 × 5 factorial arranged in a randomized complete block design with 10 treatments of 2 strains ...
Emami Seyede Faranak - - 2014
The daf is a large Persian frame drum used as a musical instrument in both popular and classical music which can induce a percussive sound at low frequencies (146-290 Hz) with peaks of up to 130 dBspl. The percussive sounds have a power distribution in the region of saccular sensitivity. ...
Jerin Claudia C Department of Otorhinolaryngology Head and Neck Surgery, German Center for Vertigo and Balance Disorders, University of Munich, Grosshadern Medical Centre, Marchioninistr. 15, 81377, Munich, Germany, - - 2014
Ocular vestibular evoked myogenic potentials (oVEMPs) represent extraocular muscle activity in response to vestibular stimulation. We sought to investigate whether oVEMPs are modulated by increasing intracranial pressure (ICP). Air-conducted oVEMPs were elicited in 20 healthy subjects lying supine on a tilt table. In order to elevate the ICP, the table ...
Chen Yi-Chou YC School of Kinesiology, University of Minnesota, Minneapolis, MN, - - 2014
Athletic head trauma (both concussive and sub-concussive) is common among adolescents. Head trauma often is followed by motion sickness-like symptoms, by changes in cognitive performance, and by changes in standing body sway. We evaluated adolescent female boxers who did and did not report motion sickness after a bout (i.e., a ...
Wong Francis Kh FKh Faculty of Health & Social Sciences, The Hong Kong Polytechnic - - 2014
Effective training to improve serve speed is important for competitive tennis players. The purposes of this study were to investigate the effects of anthropometric factors and whole body kinematics of elite players on ball speed and to propose possible training strategies for improving the quality of tennis serves. Body and ...
Mensink Senja H G SH Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The - - 2014
Freezing of gait is an episodic gait disorder, characterized by the inability to generate effective forward stepping movements. The pathophysiology underlying freezing of gait remains insufficiently understood, and this hampers the development of better treatment strategies. Preliminary evidence suggests that impaired force control during walking may contribute to freezing episodes, ...
Braithwaite Jason J - - 2014
We present the first study to examine indicators of autonomic arousal associated with shifts in body image and as a function of predisposition to report spontaneous anomalous bodily experiences (ABEs) from nonclinical samples. Participants completed the Temporal-Lobe Experience subscale of the Cardiff Anomalous Perception scale-a measure associated with anomalous experiences ...
Barlow Heidi H Discipline of Exercise and Sport Science, The University of Sydney, - - 2014
The introduction of the OMEGA OSB11 starting blocks (Swiss Timing, Corgémont, Switzerland) which feature an adjustable inclined plate built into the rear of the platform, have led to the evolution of the "kick start" style of swimming start. Previous studies examining the effect of different starting positions using the OSB11 ...
Savela Janne J Department of Information Technology, University of Turku, FI-20014 Turku, - - 2014
This study explores the perceptual vowel space of the Finnish and German languages, which have a similar vowel system with eight vowels, /ɑ/ /e/ /i/ /o/ /u/ /y/ /æ∼ε/ /ø/. Three different prototypicality measures are used for describing the internal structuring of the vowel categories in terms of the F1 ...
Padulo Johnny J a Tunisian Research Laboratory "Sports Performance Optimization" , National Center of Medicine and Science in Sport , Tunis , - - 2014
Abstract The aim of this study was to investigate the effects of a single bout of whole-body vibration (WBV) on running gait. The running kinematic of sixteen male marathon runners was assessed on a treadmill at iso-efficiency speed after 10 min of WBV and SHAM (i.e. no WBV) conditions. A ...
Kawamori Naoki N a School of Exercise, Biomedical and Health Sciences , Edith Cowan University , Joondalup , - - 2014
Abstract Athletes use weighted sled towing to improve sprint ability, but little is known about its biomechanics. The purpose of this study was to investigate the effect of weighted sled towing with two different loads on ground reaction force. Ten physically active men (mean ± SD: age 27.9 ± 1.9 years; stature 1.76 ± 0.06 m; body ...
Choi Ahnryul - - 2014
When the human body is introduced to a new motion or movement, it learns the placement of different body parts, sequential muscle control, and coordination between muscles to achieve necessary positions, and it hones this new skill over time and repetition. Previous studies have demonstrated definite differences in the smoothness ...
Silverman Anne K AK Department of Mechanical Engineering, Colorado School of Mines, Golden, CO 80401, USA. Electronic address: - - 2014
The generation of whole-body angular momentum is essential in many locomotor tasks and must be regulated in order to maintain dynamic balance. However, angular momentum has not been investigated during stair walking, which is an activity that presents a biomechanical challenge for balance-impaired populations. We investigated three-dimensional whole-body angular momentum ...
Hobbs Sarah Jane SJ Centre for Applied Sport end Exercise Sciences, University of Central Lancashire, Preston, Lancs, UK. Electronic address: - - 2014
The diagonal limb support pattern at trot provides pitch and roll stability, but little is known about the control of moments about the centre of mass (COM) in horses. Correct COM location is critical in the calculation of pitching moments. The objectives were to determine the effect of COM location ...
Panzica M M Department of Trauma Surgery and Orthopaedic Surgery, Hannover Medical School, Carl-Neuberg Str. 1, 30625, Hannover, Germany, - - 2014
Successful outcome after total knee arthroplasty (TKA) requires precise realignment of the mechanical axis. The intraoperative assessment of the mechanical axis is difficult. Intraoperatively, the effect of weight bearing on the lower limb mechanical axis is ignored. We developed a custom-made mechanical loading device to simulate weight-bearing conditions intraoperatively and ...
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