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Gait & Posture

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https://www.readbyqxmd.com/read/27912155/home-based-interventions-improve-trained-but-not-novel-dual-task-balance-performance-in-older-adults-a-randomized-controlled-trial
#1
Suleeporn Wongcharoen, Somporn Sungkarat, Peeraya Munkhetvit, Vipul Lugade, Patima Silsupadol
The purpose of this study was to compare the efficacy of four different home-based interventions on dual-task balance performance and to determine the generalizability of the four trainings to untrained tasks. Sixty older adults, aged 65 and older, were randomly assigned to one of four home-based interventions: single-task motor training, single-task cognitive training, dual-task motor-cognitive training, and dual-task cognitive-cognitive training. Participants received 60-min individualized training sessions, 3 times a week for 4 weeks...
November 22, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27912153/overground-vs-treadmill-walking-on-biomechanical-energy-harvesting-an-energetics-and-emg-study
#2
Jean-Paul Martin, Qingguo Li
A biomechanical energy harvester is a wearable device that generates electricity from human motion. Walking on a treadmill has been used almost exclusively by researchers for studying the energetic effects of biomechanical energy harvesters and wearable robotics. A treadmill provides the advantage of having long duration trials within a stationary motion capture volume. However, no consensus exists on whether the results from treadmill walking accurately represent overground walking. We aim to investigate how a biomechanical energy harvester performs overground compared to on a treadmill by measuring energy expenditure and muscle activity...
November 19, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27889619/selective-motor-control-correlates-with-gait-abnormality-in-children-with-cerebral-palsy
#3
Emily Chruscikowski, Nicola R D Fry, Jonathan J Noble, Martin Gough, Adam P Shortland
Children with bilateral cerebral palsy (CP) commonly have limited selective motor control (SMC). This affects their ability to complete functional tasks. The impact of impaired SMC on walking has yet to be fully understood. Measures of SMC have been shown to correlate with specific characteristics of gait, however the impact of SMC on overall gait pattern has not been reported. This study explored SMC data collected as part of routine gait analysis in children with bilateral CP. As part of their clinical assessment, SMC was measured with the Selective Control Assessment of the Lower Extremities (SCALE) in 194 patients with bilateral cerebral palsy attending for clinical gait analysis at a single centre...
November 19, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27888697/whole-body-organization-during-a-symmetric-bimanual-pick-up-task-in-overweight-and-obese-children
#4
Ya-Ching Hung, Melissa Mangiafreno, Simone V Gill
Information on the effects of obesity on the biomechanics of whole body movement control in children is limited. The purpose of the current study is to test the hypothesis that during a simple pick up task, overweight and obese children will organize their whole body movements differently than those in normal weight children. Twelve children who were overweight or obese (5-13 years old) and twelve age matched normal weight children participated in the study. Children picked up an empty box to waist height at a self-selected pace while kinematic and kinetic data were recorded and analyzed using a VICON system and two AMTI force plates...
November 19, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27912154/limb-dominance-foot-orientation-and-functional-asymmetry-during-walking-gait
#5
John D Polk, Rebecca M Stumpf, Karl S Rosengren
While healthy gait is often characterized as, or assumed to be symmetric, consistent asymmetries often exist. In this study, we test the hypotheses that asymmetries in lower limb function, as measured by ground reaction force characteristics, may be explained by differences in foot orientation or limb dominance. Peak ground reaction force (GRF) measurements, and impulses were obtained for thirty-six healthy subjects with simultaneous kinematic estimates of foot posture. Three gait tasks were performed: subjects walked i) with normal foot orientation, ii) with feet laterally rotated (outward), and iii) with feet aligned in the direction of movement (straight)...
November 18, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27888695/automatic-identification-of-gait-events-during-walking-on-uneven-surfaces
#6
Nils Eckardt, Armin Kibele
The accurate detection of gait events is essential for clinical gait analysis. Aside from speed, surface characteristics like planarity and compliance can affect gait kinematics. Therefore detection of kinematic gait events on uneven surfaces may be inaccurate. To date, no study has investigated the possible influence of surface characteristics on gait event detection. Thus, the purpose of this study was to assess and compare the performance of four kinematic-based gait event detection algorithms (horizontal heel-heel displacement, foot velocity, heel/toe-PSIS displacement, peak hip extension) during walking on three surfaces with different degrees of planarity...
November 18, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27888694/head-movement-measurement-an-alternative-method-for-posturography-studies
#7
REVIEW
L F Ciria, M A Muñoz, J Gea, N Peña, J G V Miranda, P Montoya, J Vila
The present study evaluated the measurement of head movements as a valid method for postural emotional studies using the comparison of simultaneous recording of center of pressure (COP) sway as criterion. Thirty female students viewed a set of 12 pleasant, 12 unpleasant and 12 neutral pictures from the International Affective Picture System, repeated twice, using a block presentation procedure while standing on a force platform (AMTI AccuSway). Head movements were recorded using a webcam (©KPC139E) located in the ceiling in line with the force platform and a light-emitting diode (LED) placed on the top of the head...
November 17, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27883986/a-model-of-free-living-gait-a-factor-analysis-in-parkinson-s-disease
#8
Rosie Morris, Aodhán Hickey, Silvia Del Din, Alan Godfrey, Sue Lord, Lynn Rochester
INTRODUCTION: Gait is a marker of global health, cognition and falls risk. Gait is complex, comprised of multiple characteristics sensitive to survival, age and pathology. Due to covariance amongst characteristics, conceptual gait models have been established to reduce redundancy and aid interpretation. Previous models have been derived from laboratory gait assessments which are costly in equipment and time. Body-worn monitors (BWM) allow for free-living, low-cost and continuous gait measurement and produce similar covariant gait characteristics...
November 16, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27907872/does-unilateral-single-event-multilevel-surgery-improve-gait-in-children-with-spastic-hemiplegia-a-retrospective-analysis-of-a-long-term-follow-up
#9
Christian Schranz, Annika Kruse, Tanja Kraus, Gerhardt Steinwender, Martin Svehlik
Single event multilevel surgery (SEMLS) has become a standard intervention for children with cerebral palsy (CP). SEMLS proved to improve the gait in bilateral spastic cerebral palsy and those improvements can be maintained in the long term. However there is no evidence on the long-term outcome of unilateral SEMLS in children with unilateral spastic cerebral palsy. The gait analyses and clinical data of 14 children (9 male/5 female, mean age 12.1) with unilateral CP (6 children Gross Motor Function Classification System Scale level I and 8 children level II) were retrospectively reviewed at four time-points: preoperatively, 1year, 3-5 years and approximately 10 years after unilateral SEMLS...
November 15, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27893997/psychometric-properties-of-dual-task-balance-and-walking-assessments-for-individuals-with-neurological-conditions-a-systematic-review
#10
REVIEW
Lei Yang, Freddy Man Hin Lam, Lin Rong Liao, Mei Zhen Huang, Cheng Qi He, Marco Yiu Chung Pang
BACKGROUND: The ability of performing a balance or walking task in conjunction with a secondary cognitive or motor task, referred to as dual-task (DT) ability, is essential in daily living. While there is some evidence that DT performance is impaired in individuals with neurological conditions, using reliable and valid tools to measure DT performance is essential. This systematic review aimed to evaluate the psychometric properties of DT balance and walking assessments in individuals with different neurological conditions...
November 15, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27883987/changes-in-lumbopelvic-rhythm-during-trunk-extension-in-adolescent-soccer-players
#11
Michio Tojima, Suguru Torii
Many adolescent athletes experience low back pain (LBP). Its causative factors include lower limb muscle tightness and hip-spine incoordination. Hip-spine coordination [or lumbopelvic rhythm, LPR] can be used to assess lower-limb and spine functions. We assessed the presence/absence of LBP in adolescent soccer players before and after a six-month period and divided them into four groups: no LBP both before and after the period (NBP group); LBP before but not after (PN group); LBP after but not before (NP group); and LBP both before and after (LBP group)...
November 15, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27871018/is-lower-peripheral-information-weighted-differently-as-a-function-of-step-number-during-step-climbing
#12
Valentina Graci, Marco Rabuffetti, Carlo Frigo, Maurizio Ferrarin
The importance of peripheral visual information during stair climbing and how peripheral visual information is weighted as a function of step number during step climbing is unclear. Previous authors postulated that the knowledge of predictable characteristics of the steps may decrease reliance on foveal vision and transfer the online visual guidance of stair climbing to peripheral vision. Hence the aim of this study was to investigate if and how the occlusion of the lower peripheral visual field influenced stair climbing and if peripheral visual information was weighted differently between steps...
November 13, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27883988/real-time-feedback-to-improve-gait-in-children-with-cerebral-palsy
#13
Linda van Gelder, Adam T C Booth, Ingrid van de Port, Annemieke I Buizer, Jaap Harlaar, Marjolein M van der Krogt
Real-time feedback may be useful for enhancing information gained from clinical gait analysis of children with cerebral palsy (CP). It may also be effective in functional gait training, however, it is not known if children with CP can adapt gait in response to real-time feedback of kinematic parameters. Sixteen children with cerebral palsy (age 6-16; GMFCS I-III), walking with a flexed-knee gait pattern, walked on an instrumented treadmill with virtual reality in three conditions: regular walking without feedback (NF), feedback on hip angle (FH) and feedback on knee angle (FK)...
November 11, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27866014/3d-multi-segment-foot-kinematics-in-children-a-developmental-study-in-typically-developing-boys
#14
Kevin Deschamps, Filip Staes, Kathelijne Peerlinck, Christel Van Geet, Cedric Hermans, Giovanni Arnoldo Matricali, Sebastien Lobet
BACKGROUND: The relationship between age and 3D rotations objectivized with multisegment foot models has not been quantified until now. The purpose of this study was therefore to investigate the relationship between age and multi-segment foot kinematics in a cross-sectional database. METHODS: Barefoot multi-segment foot kinematics of thirty two typically developing boys, aged 6-20 years, were captured with the Rizzoli Multi-segment Foot Model. One-dimensional statistical parametric mapping linear regression was used to examine the relationship between age and 3D inter-segment rotations of the dominant leg during the full gait cycle...
November 11, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27855310/between-leg-differences-in-challenging-single-limb-balance-performance-one-year-following-anterior-cruciate-ligament-reconstruction
#15
Anna L Hatton, Kay M Crossley, Ross A Clark, Timothy S Whitehead, Hayden G Morris, Adam G Culvenor
Following anterior cruciate ligament (ACL) rupture, reconstructive surgery (ALCR) is often performed to mechanically stabilise the knee, however functional deficits often persist long after surgery. Impaired single-limb standing balance has been observed in the ACLR limb compared to healthy individuals. However, it remains inconclusive as to whether these same balance deficits exist between the injured and contralateral uninjured limbs, during challenging balance tasks, and at a time when patients are permitted to return to sport...
November 11, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27888696/underwater-gait-analysis-in-parkinson-s-disease
#16
Daniele Volpe, Davide Pavan, Meg Morris, Annamaria Guiotto, Robert Iansek, Sofia Fortuna, Giuseppe Frazzitta, Zimi Sawacha
Although hydrotherapy is one of the physical therapies adopted to optimize gait rehabilitation in people with Parkinson disease, the quantitative measurement of gait-related outcomes has not been provided yet. This work aims to document the gait improvements in a group of parkinsonians after a hydrotherapy program through 2D and 3D underwater and on land gait analysis. Thirty-four parkinsonians and twenty-two controls were enrolled, divided into two different cohorts. In the first one, 2 groups of patients underwent underwater or land based walking training; controls underwent underwater walking training...
November 10, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27855311/effect-of-aging-on-regional-neuromuscular-regulation-within-human-rectus-femoris-muscle-during-stair-ascent-and-descent
#17
Kohei Watanabe, Motoki Kouzaki, Toshio Moritani
Our recent studies showed the rectus femoris (RF) muscle is regionally regulated during the level walking and this unique neuromuscular activation pattern is influenced by aging (Watanabe et al., 2014, 2016 J Biomech). We aimed to investigate and compare regional neuromuscular activation patterns along the RF muscle between the young and elderly during the stair walking. Fourteen young men (age: 20.4±1.0years) and 14 elderly men (age: 73.8±5.9years) performed the stair ascent and descent. Fifteen trials of three steps were performed for both stair ascent and descent...
November 10, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27871017/predicting-postoperative-gait-in-cerebral-palsy
#18
Omar A Galarraga C, Vincent Vigneron, Bernadette Dorizzi, Néjib Khouri, Eric Desailly
In this work, postoperative lower limb kinematics are predicted with respect to preoperative kinematics, physical examination and surgery data. Data of 115 children with cerebral palsy that have undergone single-event multilevel surgery were considered. Preoperative data dimension was reduced utilizing principal component analysis. Then, multiple linear regressions with 80% confidence intervals were performed between postoperative kinematics and bilateral preoperative kinematics, 36 physical examination variables and combinations of 9 different surgical procedures...
November 9, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27863279/evidence-of-compensatory-joint-kinetics-during-stair-ascent-and-descent-in-parkinson-s-disease
#19
Zachary J Conway, Peter A Silburn, Tim Blackmore, Michael H Cole
BACKGROUND: Stair ambulation is a challenging activity of daily life that requires larger joint moments than walking. Stabilisation of the body and prevention of lower limb collapse during this task depends upon adequately-sized hip, knee and ankle extensor moments. However, people with Parkinson's disease (PD) often present with strength deficits that may impair their capacity to control the lower limbs and ultimately increase their falls risk. OBJECTIVE: To investigate hip, knee and ankle joint moments during stair ascent and descent and determine the contribution of these joints to the body's support in people with PD...
November 9, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27846435/muscle-activation-patterns-of-the-lumbo-pelvic-hip-complex-during-walking-gait-before-and-after-exercise
#20
Mihyang Chang, Lindsay V Slater, Revay O Corbett, Joseph M Hart, Jay Hertel
The lumbo-pelvic-hip core complex consists of musculoskeletal structures that stabilize the spine and pelvis, however fatigue may affect muscle recruitment, active muscle stiffness and trunk kinematics, compromising trunk stability. The purpose of this study was to compare trunk muscle activation patterns, and trunk and lower extremity kinematics during walking gait before and after exercise. Surface electrodes were placed over the rectus abdominis, external oblique, erector spinae, gluteus medius, vastus lateralis, and vastus medialis of twenty-five healthy inidviduals...
November 9, 2016: Gait & Posture
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