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Postural stability

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https://www.readbyqxmd.com/read/28723821/can-a-balance-wristband-influence-postural-control
#1
Sven Eichhorn, Sonja Foerster, Benedikt Friemert, Christian Willy, Hans-Joachim Riesner, Hans-Georg Palm
Top sports performances cannot be achieved without a high level of postural control. Balance wristbands purport to improve the mental and physical balance of the wearer. It is still unclear, however, whether these wristbands can indeed enhance postural control. Our purpose was to ascertain by means of computerized dynamic posturography whether balance wristbands can improve postural stability.In this randomized controlled single-blind clinical study, posturography was used to assess postural control in 179 healthy subjects with or without a balance wristband...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28721206/a-bipedal-mammalian-model-for-spinal-cord-injury-research-the-tammar-wallaby
#2
Norman R Saunders, Katarzyna M Dziegielewska, Sophie C Whish, Lyn A Hinds, Benjamin J Wheaton, Yifan Huang, Steve Henry, Mark D Habgood
Background: Most animal studies of spinal cord injury are conducted in quadrupeds, usually rodents. It is unclear to what extent functional results from such studies can be translated to bipedal species such as humans because bipedal and quadrupedal locomotion involve very different patterns of spinal control of muscle coordination. Bipedalism requires upright trunk stability and coordinated postural muscle control; it has been suggested that peripheral sensory input is less important in humans than quadrupeds for recovery of locomotion following spinal injury...
2017: F1000Research
https://www.readbyqxmd.com/read/28717619/comparison-of-dynamic-postural-stability-scores-between-athletes-with-and-without-chronic-ankle-instability-during-lateral-jump-landing
#3
Zeinab Shiravi, Azadeh Shadmehr, Saeed Talebian Moghadam, Behrouz Attarbashi Moghadam
BACKGROUNDS: Many ankle injuries occur while participating in sports that require jumping and landing such as basketball, volleyball and soccer. Most recent studies have investigated dynamic postural stability of patients with chronic ankle instability after landing from a forward jump. The present study aimed to investigate the dynamic postural stability of the athletes who suffer from chronic ankle sprain while landing from a lateral jump. METHODS: Twelve athletes with self-reported unilateral chronic ankle instability (4 females and 8 males) and 12 matched controls (3 females and 9 males) voluntarily participated in the study...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28714826/effects-of-peroneal-muscles-fatigue-on-dynamic-stability-following-lateral-hop-landing-time-to-stabilization-vs-dynamic-postural-stability-index
#4
Kazem Malmir, Gholam Reza Olyaei, Saeed Talebian, Ali Ashraf Jamshidi, Majid Ashraf Ganguie
CONTEXT: Dynamic stability is a necessary requirement in many sports competitions. Muscle fatigue, which can impair stability, may be occurred in many sports competitions in which lateral movements and landing repeated frequently. OBJECTIVE: To assess the effects of peroneal muscles fatigue on dynamic stability following lateral hop landing through measuring time to stabilization (TTS) and dynamic postural stability index (DPSI). DESIGN: Quasi-experimental...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714764/abdominal-hollowing-reduces-lateral-trunk-displacement-during-single-leg-squats-in-healthy-females-but-does-not-affect-peak-hip-abduction-angle-or-knee-abductio-angle-moment
#5
Lukas D Linde, Jessica Archibald, Eve C Lampert, John Z Srbely
CONTEXT: Females suffer 4-6 times more non-contact anterior cruciate ligament (ACL) injuries than males due to neuromuscular control deficits of the hip musculature leading to increases in hip adduction angle, knee abduction angle, and knee abduction moment during dynamic tasks such as single-leg squats. Lateral trunk displacement has been further related to ACL injury risk in females, leading to the incorporation of core strength/stability exercises in ACL preventative training programs...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714763/effects-of-trial-duration-on-intrasession-reliability-of-single-leg-balance-testing-on-stable-and-unstable-surfaces
#6
Bryan I Riemann, Kelsey Piersol, George J Davies
CONTEXT: Single leg balance testing is a commonly used tool in sports medicine; however, there has been no consensus on trial duration needed to obtain reliable measures. OBJECTIVE: This investigation sought to determine the minimum trial duration required to obtain the highest intrasession single and average trial reliability for single leg balance testing on stable and unstable surfaces using dominant and nondominant limbs. DESIGN: Intrasession reliability...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28713252/effect-of-postural-control-demands-on-early-visual-evoked-potentials-during-a-subjective-visual-vertical-perception-task-in-adolescents-with-idiopathic-scoliosis
#7
Yi-Tzu Chang, Ling-Fu Meng, Chun-Ju Chang, Po-Liang Lai, Chi-Wen Lung, Jen-Suh Chern
Subjective visual vertical (SVV) judgment and standing stability were separately investigated among patients with adolescent idiopathic scoliosis (AIS). Although, one study has investigated the central mechanism of stability control in the AIS population, the relationships between SVV, decreased standing stability, and AIS have never been investigated. Through event-related potentials (ERPs), the present study examined the effect of postural control demands (PDs) on AIS central mechanisms related to SVV judgment and standing stability to elucidate the time-serial stability control process...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28709904/the-effects-of-gaze-stabilization-on-gait-parameters-in-individuals-with-parkinson-s-disease
#8
Rebecca J Reed-Jones, Douglas W Powell
The purpose of this study was to examine the effects of gaze fixation on head stabilization and gait during straight over ground walking in individuals with Parkinson's disease (PD). Eight individuals with PD (Age: 62.3±8.1years) volunteered for the study. Full body kinematic data were collected at 120Hz using a Vicon motion capture system. Two visual conditions were used to determine the effects of gaze fixation: FREE gaze and FIXED gaze. During FIXED gaze, participants were required to fixate on a still target 13meters ahead...
July 11, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28705486/the-influence-of-adipose-tissue-location-on-postural-control
#9
Joanna Cieślińska-Świder, Mariusz Paweł Furmanek, Janusz Wiesław Błaszczyk
A growing body of evidence suggests, that excessive body weight is inseparably connected with postural instability. In none of previous studies, body weight distribution has been considered as a factor, which may affect results of a static posturography. The purpose of the present study is to quantify some center of foot pressure (COP) characteristics in 40 obese women with android type of obesity (waist-to-hip ratio - WHR≥0.85, BMI: 37.5±5.4) and 40 obese women with gynoid type of obesity (WHR<0.85, BMI: 36...
June 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28704193/rehabilitation-of-patients-with-hip-joint-arthroplasty-late-post-surgery-period-hospital-rehabilitation
#10
Maya S Krastanova, Elena M Ilieva, Danelina E Vacheva
BACKGROUND: Hip joint replacement (endoprosthesis, alloplasty) has become one of the most frequent surgery interventions of the 20th century. AIM: To conduct rehabilitation therapy in the late post-surgery period of hospital rehabilitation (45 days after surgery), to track patients' progress and measure the results. MATERIALS AND METHODS: One hundred and fifty-two patients with hip joint endoprosthesis were included in the study. All underwent surgery and rehabilitation at the Department of Clinical Rehabilitation of the Physical and Rehabilitation Medicine Clinic at Doctor G...
June 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28699850/the-effect-of-balance-training-intervention-on-postural-stability-in-children-with-asthma
#11
Zuzana Kovacikova, Katerina Neumannova, Jana Rydlova, Lucia Bizovská, Miroslav Janura
OBJECTIVE: Pulmonary rehabilitation is mainly focused on exercise training and breathing retraining in children with asthma. Conversely, balance training is not usually recommended for the treatment, although postural deficits were found in these patients. Therefore, this study assessed the effect of balance training intervention on postural stability in children with asthma. METHODS: Nineteen children with mild intermittent asthma (age 11.1 ± 2.1 years, height 147...
July 12, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28697038/sleep-quality-and-its-association-with-postural-stability-and-fear-of-falling-among-spanish-postmenopausal-women
#12
Fidel Hita-Contreras, Noelia Zagalaz-Anula, Antonio Martínez-Amat, David Cruz-Díaz, Indalecio Sánchez-Montesinos, Agustín Aibar-Almazán, Rafael Lomas-Vega
OBJECTIVE: To analyze the association of sleep quality with postural balance, as measured with objective stabilometric parameters, and fear of falling (FoF), among Spanish postmenopausal women. METHODS: In all, 250 women (60 ± 8 years) took part in this cross-sectional study. Sociodemographic and anthropometric data were collected, as well as information concerning history of falls and FoF. Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale, and the Pittsburgh Sleep Quality Index was used to analyze sleep quality...
July 10, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28694770/spatial-cues-provided-by-sound-improve-postural-stabilization-evidence-of-a-spatial-auditory-map
#13
Lennie Gandemer, Gaetan Parseihian, Richard Kronland-Martinet, Christophe Bourdin
It has long been suggested that sound plays a role in the postural control process. Few studies however have explored sound and posture interactions. The present paper focuses on the specific impact of audition on posture, seeking to determine the attributes of sound that may be useful for postural purposes. We investigated the postural sway of young, healthy blindfolded subjects in two experiments involving different static auditory environments. In the first experiment, we compared effect on sway in a simple environment built from three static sound sources in two different rooms: a normal vs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28688367/postural-motor-learning-in-parkinson-s-disease-the-effect-of-practice-on-continuous-compensatory-postural-regulation
#14
Karen Van Ooteghem, James S Frank, Fay B Horak
INTRODUCTION: Although balance training is considered the most effective treatment for balance impairments in Parkinson's disease (PD), few studies have examined if learning for balance control remains intact with PD. This study aimed to determine if learning for automatic postural responses is preserved in people with PD. METHODS: Eleven participants with moderate PD (68±6.4years; H&Y: 2-3) on their usual medication maintained balance on a platform that oscillated forward and backward with variable amplitude and constant frequency...
June 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28682215/could-slackline-training-complement-the-fifa-11-programme-regarding-training-of-neuromuscular-control
#15
Tobias Jäger, Julian Kiefer, Inge Werner, Peter A Federolf
The current study compared changes in neuromuscular control between slackline training and the stabilization training elements of the FIFA 11+ programme. Twenty-five students in 2 groups performed a 12-unit training programme. The slackline training group (n = 13) exclusively trained with a slackline. The stabilization training group (n = 12) practised exercises as described in the second part of the FIFA 11+ programme. Improvements in balance were assessed using three tests for dynamic, quasi-static, and perturbed postural control: the star excursion balance test (SEBT), the closed-eye single-leg stance, and the MFT S3-Check...
July 6, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28675663/postural-control-in-children-with-dyslexia-effects-of-emotional-stimuli-in-a-dual-task-environment
#16
Nathalie Goulème, Christophe-Loïc Gerard, Maria Pia Bucci
The aim of this study was to compare the visual exploration strategies used during a postural control task across participants with and without dyslexia. We simultaneously recorded eye movements and postural control while children were viewing different types of emotional faces. Twenty-two children with dyslexia and twenty-two aged-matched children without dyslexia participated in the study. We analysed the surface area, the length and the mean velocity of the centre of pressure for balance in parallel with visual saccadic latency, the number of saccades and the time spent in regions of interest...
July 4, 2017: Dyslexia: the Journal of the British Dyslexia Association
https://www.readbyqxmd.com/read/28668186/an-active-balance-board-system-with-real-time-control-of-stiffness-and-time-delay-to-assess-mechanisms-of-postural-stability
#17
Denise R Cruise, James R Chagdes, Joshua J Liddy, Shirley Rietdyk, Jeffrey M Haddad, Howard N Zelaznik, Arvind Raman
Increased time-delay in the neuromuscular system caused by neurological disorders, concussions, or advancing age is an important factor contributing to balance loss (Chagdes et al., 2013, 2016a,b). We present the design and fabrication of an active balance board system that allows for a systematic study of stiffness and time-delay induced instabilities in standing posture. Although current commercial balance boards allow for variable stiffness, they do not allow for manipulation of time-delay. Having two controllable parameters can more accurately determine the cause of balance deficiencies, and allows us to induce instabilities even in healthy populations...
June 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28667905/spatial-and-temporal-postural-analysis-in-children-born-prematurely
#18
REVIEW
Maria Pia Bucci, Margherita Tringali, Clémence Trousson, Isabelle Husson, Olivier Baud, Valerie Biran
The aim of this study was to compare postural stability in a group of preterm-born children aged 4-6 years old and in a group of age-matched full-term control children by exploring both spatial and temporal analysis of the Center of Pressure (CoP). Twenty-nine children born prematurely (mean age: 5.38±0.17) and twenty-nine age-matched full-term control children participated in this study. Postural control was tested on both a stable and an unstable platform (from Framiral(®)) in three different visual conditions: eyes open fixating a target, eyes closed, and with vision perturbed by optokinetic stimulation...
June 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28664577/the-medial-pterygoid-muscle-a-stabilizer-of-horizontal-jaw-movement
#19
Hui Chen, Terry Whittle, John A Gal, Greg M Murray, Iven J Klineberg
There is limited information of the normal function of the human medial pterygoid muscle (MPt). The aims were to determine whether (a) the MPt is active throughout horizontal jaw movements with the teeth apart and (b) whether single motor units (SMUs) are active during horizontal and opening - closing jaw movements. Intramuscular electrodes were placed in the right MPt of 18 participants who performed 5 teeth-apart tasks: 1) postural position, 2) ipsilateral (i.e. right) jaw movement, 3) contralateral movement, 4) protrusive movement, 5) opening-closing movement...
June 29, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28662461/standing-on-wedges-modifies-side-specific-postural-control-in-the-presence-of-lateral-external-perturbations
#20
Yun-Ju Lee, Jing-Nong Liang, Bing Chen, Mohan Ganesan, Alexander S Aruin
Standing on wedges changes the position in the ankle joints and affects postural stability in the medial-lateral direction. The objective of the study was to investigate the role of wedges and external lateral perturbations on anticipatory (APA) and compensatory postural adjustments (CPA). Ten healthy young participants were exposed to perturbations applied to the lateral part of their right shoulder when standing on a planar surface, on a medial or lateral wedges. Bilateral electromyographic activity of dorsal and ventral postural muscles and the center of pressure (COP) displacement were recorded and analyzed during the APA and CPA phases...
June 20, 2017: Journal of Electromyography and Kinesiology
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