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Gait & Posture

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https://www.readbyqxmd.com/read/28624710/role-of-impaired-vision-during-dual-task-walking-in-young-and-older-adults
#1
V Krishnan, Y Cho, O Mohamed
While cognitive-motor interference in dual-task activities is well established, it is still unknown how such interference is influenced by concurrent visual challenges. Nineteen community-dwelling healthy, cognitively intact, older adults (Mean±SD=71.45±1.25years, 6 males) and nineteen young adults (Mean±SD=22.25±0.68years, 4 males) performed a cognitive-single-task (serial subtraction by 3), a walking-single-task and a cognitive-walking-dual-task under normal, blurred and peripheral-vision-loss conditions (artificially imposed using goggles)...
June 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28623760/gait-dynamics-in-pisa-syndrome-and-camptocormia-the-role-of-stride-length-and-hip-kinematics
#2
C Tramonti, S Di Martino, E Unti, D Frosini, U Bonuccelli, B Rossi, R Ceravolo, C Chisari
This is an observational cross-sectional study evaluating gait dynamics in patients with Parkinson's Disease (PD) and severe postural deformities, PD without axial deviations and healthy subjects. Ten PS individuals with Pisa syndrome (PS) and nine subjects with Camptocormia (CC) performed 3-D Gait Analysis and were evaluated with walking and balance scales. Correlations with clinical and functional scales were investigated. Spatio-temporal and kinematic data were compared to ten PD subjects without postural deformities (PP) and ten healthy matched individuals (CG)...
June 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28605674/a-procedure-to-detect-abnormal-sensorimotor-control-in-adolescents-with-idiopathic-scoliosis
#3
Jean-Philippe Pialasse, Pierre Mercier, Martin Descarreaux, Martin Simoneau
This work identifies, among adolescents with idiopathic scoliosis, those demonstrating impaired sensorimotor control through a classification procedure comparing the amplitude of their vestibular-evoked postural responses. The sensorimotor control of healthy adolescents (n=17) and adolescents with idiopathic scoliosis (n=52) with either mild (Cobb angle≥15° and ≤30°) or severe (Cobb angle >30°) spine deformation was assessed through galvanic vestibular stimulation. A classification procedure sorted out adolescents with idiopathic scoliosis whether the amplitude of their vestibular-evoked postural response was dissimilar or similar to controls...
June 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28624711/does-the-powers%C3%A2-strap-influence-the-lower-limb-biomechanics-during-running
#4
Henrike Greuel, Lee Herrington, Anmin Liu, Richard K Jones
Previous research has reported a prevalence of running related injuries in 25.9% to 72% of all runners. A greater hip internal rotation and adduction during the stance phase in running has been associated with many running related injuries, such as patellofemoral pain. Researchers in the USA designed a treatment device 'the Powers™ strap' to facilitate an external rotation of the femur and to thereby control abnormal hip and knee motion during leisure and sport activities. However, to date no literature exists to demonstrate whether the Powers™ strap is able to reduce hip internal rotation during running...
June 3, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28600974/gait-performance-of-children-and-adolescents-with-sensorineural-hearing-loss
#5
Renato de Souza Melo
BACKGROUND: Several studies have demonstrated that children with sensorineural hearing loss (SNHL) may exhibit balance disorders, which can compromise the gait performance of this population. OBJECTIVE: Compare the gait performance of normal hearing (NH) children and those with SNHL, considering the sex and age range of the sample, and analyze gait performance according to degrees of hearing loss and etiological factors in the latter group. METHOD: This is a cross-sectional study that assessed 96 students, 48 NH and 48 with SNHL, aged between 7 and 18 years...
June 3, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28600975/relationship-and-significance-of-gait-deviations-associated-with-limb-length-discrepancy-a-systematic-review
#6
REVIEW
Sam Khamis, Eli Carmeli
Controversy still exists as to the clinical significance of leg length discrepancy (LLD) in spite of the fact that further evidence has been emerging regarding the relationship between several clinical conditions and LLD. The objectives of our study were to review the available research with regard to LLD as a cause of clinically significant gait deviations, to determine if there is a relationship between the magnitude of LLD and the presence of gait deviations and to identify the most common gait deviations associated with LLD...
May 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28582720/a-little-trouble-getting-started-initial-slowness-in-parkinson-s-disease-step-negotiation
#7
Amanda E Stone, Jared W Skinner, Hyo Keun Lee, Chris J Hass
Bradykinesia is a prominent problem for persons with Parkinson's disease (PD) and has been studied extensively with upper extremity tasks; however there is a lack of research examining bradykinesia in targeted lower extremity tasks related to mobility. Navigating steps and curbs are challenging tasks for older adults and neurologically impaired and thus utilizing these behaviors provides ecological validity to the study of bradykinesia. Herein we assess differences in step negotiation performance between individuals with PD and aged matched older adults...
May 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28578138/static-and-dynamic-validation-of-inertial-measurement-units
#8
Leah Taylor, Emily Miller, Kenton R Kaufman
Optical motion capture systems are used to assess human motion. While these systems provide a reliable analysis, they limit collection to a laboratory based setting. Devices such as Inertial Measurement Units (IMUs) have been developed as alternative tools. Commercially available IMUs are utilized for a variety of applications; however limited work has been done to determine the reliability of these devices. The objective of this study was to assess the accuracy and precision of a commercially available IMU, containing tri-axial accelerometers, gyroscopes, and magnetometers, under controlled static and dynamic conditions...
May 26, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28577508/change-in-gait-after-high-tibial-osteotomy-a-systematic-review-and-meta-analysis
#9
Seung Hoon Lee, O-Sung Lee, Seow Hui Teo, Yong Seuk Lee
We conducted a meta-analysis to analyze how high tibial osteotomy (HTO) changes gait and focused on the following questions: (1) How does HTO change basic gait variables? (2) How does HTO change the gait variables in the knee joint? Twelve articles were included in the final analysis. A total of 383 knees was evaluated. There were 237 open wedge (OW) and 143 closed wedge (CW) HTOs. There were 4 level II studies and 8 level III studies. All studies included gait analysis and compared pre- and postoperative values...
May 26, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28575753/foot-muscle-morphology-is-related-to-center-of-pressure-sway-and-control-mechanisms-during-single-leg-standing
#10
Xianyi Zhang, Kurt Heinrich Schütte, Benedicte Vanwanseele
Maintaining balance is vitally important in everyday life. Investigating the effects of individual foot muscle morphology on balance may provide insights into neuromuscular balance control mechanisms. This study aimed to examine the correlation between the morphology of foot muscles and balance performance during single-leg standing. Twenty-eight recreational runners were recruited in this study. An ultrasound device was used to measure the thickness and cross-sectional area of three intrinsic foot muscles (abductor hallucis, flexor digitorum brevis and quadratus plantae) and peroneus muscles...
May 25, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28564622/suitability-of-functional-evaluation-embedded-in-serious-game-rehabilitation-exercises-to-assess-motor-development-across-lifespan
#11
B Bonnechère, V Sholukha, L Omelina, M Van Vooren, B Jansen, S Van Sint Jan
The aim of this study was to determine if the results of activities performed using specially developed serious games for physical rehabilitation could be used as an indicator of the natural maturation and decline of motor control in healthy participants. Eighty-one participants (19 children (5-15 years old), 40 adults (18-65 years old) and 22 aged subjects (60-88 years old) participated in this study. Motions performed were recorded using the Kinect sensor. Three different exercises embedded in the games were used to assess upper limb, trunk and lower limb control...
May 25, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28578140/effectiveness-of-an-innovative-hip-energy-storage-walking-orthosis-for-improving-paraplegic-walking-a-pilot-randomized-controlled-study
#12
Mingliang Yang, Jianjun Li, Xinyu Guan, Lianjun Gao, Feng Gao, Liangjie Du, Hongmei Zhao, Degang Yang, Yan Yu, Qimin Wang, Rencheng Wang, Linhong Ji
BACKGROUND: The high energy cost of paraplegic walking using a reciprocating gait orthosis (RGO) is attributed to limited hip motion and excessive upper limb loading for support. To address the limitation, we designed the hip energy storage walking orthosis (HESWO) which uses a spring assembly on the pelvic shell to store energy from the movements of the healthy upper limbs and flexion-extension of the lumbar spine and hip and returns this energy to lift the pelvis and lower limb to assist with the swing and stance components of a stride...
May 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28575752/dynamic-and-static-knee-alignment-at-baseline-predict-structural-abnormalities-on-mri-associated-with-medial-compartment-knee-osteoarthritis-after-2-years
#13
Armaghan Mahmoudian, Jaap H van Dieёn, Sjoerd M Bruijn, Isabel A C Baert, Gert S Faber, Frank P Luyten, Sabine M P Verschueren
BACKGROUND: Dynamic and static varus alignment, both, have been reported as risk factors associated with structural progression of knee osteoarthritis. However the association of none of the static and dynamic alignment with structural, clinical, and functional progression associated with knee osteoarthritis has not been assessed yet in a longitudinal study. METHODS: Forty-seven women with early and established medial knee osteoarthritis were evaluated. Static and dynamic alignment as well as MRI detected structural features, clinical, and functional characteristics of patients were assessed at baseline and at 2 years follow-up...
May 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28578136/interval-setting-selection-affects-ambulatory-activity-outputs-in-children-with-cerebral-palsy
#14
Wilshaw R Stevens, Kirsten Tulchin-Francis
INTRODUCTION: Accelerometer based devices have been widely used to assess the ambulatory activity of children with and without functional disabilities. Many researchers who utilize the StepWatch Activity Monitor (SAM) collect at a 60second (60sec) interval setting. The purpose of this study was to assess the effect of SAM interval settings on ambulatory activity outputs in children with cerebral palsy (CP) and typically developing youth. METHODS: Participants wore a SAM which recorded the number of strides every 10seconds (10s) for one week...
May 23, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28599157/comparison-in-three-dimensional-gait-kinematics-between-young-and-older-adults-on-land-and-in-shallow-water
#15
Khalid Abdul Jabbar, Shigetada Kudo, Kee Wee Goh, Ming Rong Goh
This study investigated in three-dimensional space, firstly whether the aquatic medium and secondly ageing, had any effect on the lower limb's joint angles during aquatic-based gait. Three-dimensional joint kinematics of the lower limb of 51 healthy male participants [25 young group (24.6±4.9 years, 172.1±5.5cm, 69.8±10.3kg) and 26 older group (58.5±5.1 years, 167.9±5.1cm, 70.8±12.1kg)] were quantified during land and shallow water walking. Participants walked at their self-selected comfortable speed in both mediums...
May 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28578139/altered-leverage-around-the-ankle-in-people-with-diabetes-a-natural-strategy-to-modify-the-muscular-contribution-during-walking
#16
Milos Petrovic, Kevin Deschamps, Sabine M Verschueren, Frank L Bowling, Constantinos N Maganaris, Andrew J M Boulton, Neil D Reeves
Diabetes patients display gait alterations compared to controls including a higher metabolic cost of walking. This study aimed to investigate whether differences in external moment arm (ExtMA) and effective mechanical advantage (EMA) at the ankle in diabetes patients could partly explain the increased cost of walking compared to controls. Thirty one non-diabetic controls (Ctrl); 22 diabetes patients without peripheral neuropathy (DM) and 14 patients with moderate/severe diabetic peripheral neuropathy (DPN) underwent gait analysis using a motion analysis system and force plates...
May 19, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28570861/cognitive-tasks-promote-automatization-of-postural-control-in-young-and-older-adults
#17
Alexandra Potvin-Desrochers, Natalie Richer, Yves Lajoie
Researchers looking at the effects of performing a concurrent cognitive task on postural control in young and older adults using traditional center-of-pressure measures and complexity measures found discordant results. Results of experiments showing improvements of stability have suggested the use of strategies such as automatization of postural control or stiffening strategy. This experiment aimed to confirm in healthy young and older adults that performing a cognitive task while standing leads to improvements that are due to automaticity of sway by using sample entropy...
May 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28551469/peak-medial-but-not-lateral-hamstring-activity-is-significantly-lower-during-stance-phase-of-running-an-emg-investigation-using-a-reduced-gravity-treadmill
#18
Clint Hansen, Einar Einarson, Athol Thomson, Rodney Whiteley
The hamstrings are seen to work during late swing phase (presumably to decelerate the extending shank) then during stance phase (presumably stabilizing the knee and contributing to horizontal force production during propulsion) of running. A better understanding of this hamstring activation during running may contribute to injury prevention and performance enhancement (targeting the specific role via specific contraction mode). Twenty active adult males underwent surface EMG recordings of their medial and lateral hamstrings while running on a reduced gravity treadmill...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28551466/stance-instability-in-preclinical-sca1-mutation-carriers-a-4-year-prospective-posturography-study
#19
Lorenzo Nanetti, Dario Alpini, Valentina Mattei, Anna Castaldo, Alessia Mongelli, Greta Brenna, Cinzia Gellera, Caterina Mariotti
OBJECTIVE: We aimed to study postural balance in preclinical Spinocerebellar ataxia type 1 (SCA1) mutation carriers to identify and observe specific motor functional deficit before evident clinical manifestation. METHODS: Participants were 9 asymptomatic SCA1 mutation carriers (6M/3F), aged 31.8±7years (range 22-44), and 17 age-matched non-carrier controls (5M/12F) (age 18-42). Subjects underwent postural tests on a force platform (Tetrax(®)-IBS, Sunlight Medical Ltd...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28551465/spinal-fusion-limits-upper-body-range-of-motion-during-gait-without-inducing-compensatory-mechanisms-in-adolescent-idiopathic-scoliosis-patients
#20
R M Holewijn, I Kingma, M de Kleuver, J J P Schimmel, N L W Keijsers
INTRODUCTION: Previous studies show a limited alteration of gait at normal walking speed after spinal fusion surgery for adolescent idiopathic scoliosis (AIS), despite the presumed essential role of spinal mobility during gait. This study analyses how spinal fusion affects gait at more challenging walking speeds. More specifically, we investigated whether thoracic-pelvic rotations are reduced to a larger extent at higher gait speeds and whether compensatory mechanisms above and below the stiffened spine are present...
May 17, 2017: Gait & Posture
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