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Lower limb kinematics

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https://www.readbyqxmd.com/read/27912747/the-three-dimensional-kinematics-and-spatiotemporal-parameters-of-gait-in-6-10-year-old-typically-developed-children-in-the-cape-metropole-of-south-africa-a-pilot-study
#1
Yvonne Smith, Quinette Louw, Yolandi Brink
BACKGROUND: Functional gait is an integral part of life, allowing individuals to function within their environment and participate in activities of daily living. Gait assessment forms an essential part of a physical examination and can help screen for physical impairments. No three-dimensional (3D) gait analysis studies of children have been conducted in South Africa. South African gait analysis laboratory protocols and procedures may differ from laboratories in other countries, therefore a South African data base of normative values is required to make a valid assessment of South African children's gait...
December 3, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27912154/limb-dominance-foot-orientation-and-functional-asymmetry-during-walking-gait
#2
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/27888696/underwater-gait-analysis-in-parkinson-s-disease
#3
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/27884055/the-association-of-forefoot-varus-deformity-with-patellofemoral-cartilage-damage-in-older-adult-cadavers
#4
Rebecca S Lufler, Joshua J Stefanik, Jingbo Niu, F Kip Sawyer, Todd M Hoagland, K Douglas Gross
INTRODUCTION: Forefoot alignment may contribute to patellofemoral joint (PFJ) osteoarthritis (OA) via its influence on the closed chain kinematics of the lower limb. The purpose of this cadaveric study was to investigate the relationship between forefoot varus and ipsilateral cartilage damage in the medial and lateral PFJ. MATERIALS AND METHODS: Forefoot alignment measurements were obtained from the feet of 25 cadavers (n=50). Cartilage damage in the medial and lateral PFJ of each knee was scored using the Outerbridge scale...
November 24, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27875927/what-is-being-trained-how-divergent-forms-of-plasticity-compete-to-shape-locomotor-recovery-after-spinal-cord-injury
#5
J Russell Huie, Kazuhito Morioka, Jenny Haefeli, Adam R Ferguson
Spinal cord injury (SCI) is a devastating syndrome that produces dysfunction in motor and sensory systems, manifesting as chronic paralysis, sensory changes, and pain disorders. The multifaceted and heterogeneous nature of SCI has made effective rehabilitative strategies challenging. Work over the last 40 years has aimed to overcome these obstacles by harnessing the intrinsic plasticity of the spinal cord to improve functional locomotor recovery. Intensive training after SCI facilitates lower extremity function and has shown promise as a tool for retraining the spinal cord by engaging innate locomotor circuitry in the lumbar cord...
November 22, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27871019/comparison-of-lower-limb-and-trunk-kinematics-between-markerless-and-marker-based-motion-capture-systems
#6
Margaret A Perrott, Tania Pizzari, Jill Cook, Jodie A McClelland
: Three dimensional (3-D) motion capture systems are used by researchers and clinicians to analyze the kinematics of human movement. Traditional marker based systems are time consuming and limit the size of studies. Markerless 3-D systems are quicker to use but the differences between data captured in each system is unclear. AIM: To examine the relationship of kinematic data captured by marker based and markerless motion capture systems. METHODS: Movement was assessed in two tests: a simple knee flexion test and single leg squat with a marker based protocol (Vicon) and a markerless protocol (Organic Motion)...
October 31, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27871017/predicting-postoperative-gait-in-cerebral-palsy
#7
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/27865154/a-narrow-bimalleolar-width-is-a-risk-factor-for-ankle-inversion-injury-in-male-military-recruits-a-prospective-study
#8
Hannah Rice, Michael Nunns, Carol House, Joanne Fallowfield, Adrian Allsopp, Sharon Dixon
BACKGROUND: Ankle inversion injuries are one of the most common and burdensome injuries in athletic populations. Research that prospectively identifies characteristics associated with this injury is lacking. This prospective study compared baseline anthropometric and biomechanical gait characteristics of military recruits who sustained an ankle inversion injury during training, with those who remained injury-free. METHODS: Bilateral plantar pressure and three-dimensional lower limb kinematics were recorded in 1065 male, injury-free military recruits, during barefoot running...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27865130/effects-of-fatigue-on-lower-limb-pelvis-and-trunk-kinematics-and-muscle-activation-gender-differences
#9
Giovanna Camparis Lessi, Ana Flávia Dos Santos, Luis Fylipe Batista, Gabriela Clemente de Oliveira, Fábio Viadanna Serrão
BACKGROUND: Muscle fatigue is associated with biomechanical changes that may lead to anterior cruciate ligament (ACL) injuries. Alterations in trunk and pelvis kinematics may also be involved in ACL injury. Although some studies have compared the effects of muscle fatigue on lower limb kinematics between men and women, little is known about its effects on pelvis and trunk kinematics. The aim of the study was to compare the effects of fatigue on lower limb, pelvis and trunk kinematics and muscle activation between men and women during landing...
November 9, 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27863284/landing-from-different-heights-biomechanical-and-neuromuscular-strategies-in-trained-gymnasts-and-untrained-prepubescent-girls
#10
Α Christoforidou, D A Patikas, E Bassa, I Paraschos, S Lazaridis, C Christoforidis, C Kotzamanidis
The purpose of this study was to examine the biomechanics of the lower limb, during landing in female prepubertal gymnasts and prepubertal untrained girls, aged 9-12years. Ten healthy participants were included in each group and performed five landings from 20, 40, and 60cm. Kinematics, ground reaction forces (GRF) and electromyogram (EMG) from the lateral gastrocnemius, tibialis anterior, and vastus lateralis are presented. Gymnasts had higher vertical GRF and shorter braking phase during landing. Compared to untrained girls, gymnasts exhibited for all examined drop heights more knee flexion before and at ground contact, but less knee flexion at maximum knee flexion position...
November 9, 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27849289/external-rotation-elastic-bands-at-the-lower-limb-decrease-rearfoot-eversion-during-walking-a-preliminary-proof-of-concept
#11
Thales R Souza, Vanessa L Araújo, Paula L Silva, Viviane O C Carvalhais, Renan A Resende, Sérgio T Fonseca
Background: Reducing rearfoot eversion is a commonly desired effect in clinical practice to prevent or treat musculoskeletal dysfunction. Interventions that pull the lower limb into external rotation may reduce rearfoot eversion. Objective: This study investigated whether the use of external rotation elastic bands, of different levels of stiffness, will decrease rearfoot eversion during walking. We hypothesized that the use of elastic bands would decrease rearfoot eversion and that the greater the band stiffness, the greater the eversion reduction...
November 7, 2016: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/27833057/25-years-of-lower-limb-joint-kinematics-by-using-inertial-and-magnetic-sensors-a-review-of-methodological-approaches
#12
REVIEW
Pietro Picerno
Joint kinematics is typically limited to the laboratory environment, and the restricted volume of capture may vitiate the execution of the motor tasks under analysis. Conversely, clinicians often require the analysis of motor acts in non-standard environments and for long periods of time, such as in ambulatory settings or during daily life activities. The miniaturisation of motion sensors and electronic components, generally associated with wireless communications technology, has opened up a new perspective: movement analysis can be carried out outside the laboratory and at a relatively lower cost...
November 5, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27832952/cross-slope-and-level-walking-strategies-during-swing-in-individuals-with-a-lower-limb-amputation
#13
Coralie Villa, Isabelle Loiret, Karine Langlois, Xavier Bonnet, François Lavaste, Pascale Fodé, Hélène Pillet
OBJECTIVE: The aim of this study was to quantitatively analyze prosthetic limb swing phase gait strategies used to adapt to cross-slopes compared to level walking. DESIGN: Cross-sectional study SETTING: Gait laboratory PARTICIPANTS: A volunteer sample of seventeen individuals with a transfemoral amputation, fifteen individuals with a transtibial amputation and seventeen able-bodied subjects. INTERVENTIONS: Participants walked on level and 6° (10%) cross slope surfaces at a self-selected walking speed...
November 7, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27825837/effects-of-functional-electrical-stimulation-on-reducing-falls-and-improving-gait-parameters-in-multiple-sclerosis-and-stroke
#14
Elisa Gervasoni, Riccardo Parelli, Marcin Uszynski, Alessandro Crippa, Alberto Marzegan, Angelo Montesano, Davide Cattaneo
BACKGROUND: Loss of neuromuscular control of the ankle joint is a common impairment in neurologic conditions, leading to abnormal gait and a greater risk of falling. Limited information, however, is available on the effectiveness of functional electrical stimulation (FES) on reducing falls, and no studies have investigated its usefulness in improving lower limbs kinematics related to foot clearance and energy recovery. SETTING: Clinical setting. STUDY DESIGN: Prospective longitudinal study...
November 4, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27822031/effects-of-aerobic-training-combined-with-respiratory-muscle-stretching-on-the-functional-exercise-capacity-and-thoracoabdominal-kinematics-in-patients-with-copd-a-randomized-and-controlled-trial
#15
Juliano T Wada, Erickson Borges-Santos, Desiderio Cano Porras, Denise M Paisani, Alberto Cukier, Adriana C Lunardi, Celso Rf Carvalho
BACKGROUND: Patients with COPD present a major recruitment of the inspiratory muscles, predisposing to chest incoordination, increasing the degree of dyspnea and impairing their exercise capacity. Stretching techniques could decrease the respiratory muscle activity and improve their contractile capacity; however, the systemic effects of stretching remain unknown. OBJECTIVE: The aim of this study was to evaluate the effects of aerobic training combined with respiratory muscle stretching on functional exercise capacity and thoracoabdominal kinematics in patients with COPD...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27819400/-instrumental-gait-analysis-in-stroke-patients
#16
P Fernandez-Gonzalez, F Molina-Rueda, A Cuesta-Gomez, M Carratala-Tejada, J C Miangolarra-Page
INTRODUCTION: The motor control deficits after stroke affect the gait pattern. There is a significant variability between subjects. AIMS: To analyse, by using a capture motion system, the gait pattern in stroke patients with different levels of motor function, and to establish, despite the participants heterogeneity, what alterations in the gait pattern are usual in each participant. SUBJECTS AND METHODS: Nine stroke subjects with independent gait and ten control subjects participated in this study...
November 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27802730/design-of-a-biologically-inspired-lower-limb-exoskeleton-for-human-gait-rehabilitation
#17
Mingxing Lyu, Weihai Chen, Xilun Ding, Jianhua Wang, Shaoping Bai, Huichao Ren
This paper proposes a novel bionic model of the human leg according to the theory of physiology. Based on this model, we present a biologically inspired 3-degree of freedom (DOF) lower limb exoskeleton for human gait rehabilitation, showing that the lower limb exoskeleton is fully compatible with the human knee joint. The exoskeleton has a hybrid serial-parallel kinematic structure consisting of a 1-DOF hip joint module and a 2-DOF knee joint module in the sagittal plane. A planar 2-DOF parallel mechanism is introduced in the design to fully accommodate the motion of the human knee joint, which features not only rotation but also relative sliding...
October 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27799727/parallel-robot-for-lower-limb-rehabilitation-exercises
#18
Alireza Rastegarpanah, Mozafar Saadat, Alberto Borboni
The aim of this study is to investigate the capability of a 6-DoF parallel robot to perform various rehabilitation exercises. The foot trajectories of twenty healthy participants have been measured by a Vicon system during the performing of four different exercises. Based on the kinematics and dynamics of a parallel robot, a MATLAB program was developed in order to calculate the length of the actuators, the actuators' forces, workspace, and singularity locus of the robot during the performing of the exercises...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27792950/hallux-valgus-surgery-affects-kinematic-parameters-during-gait
#19
Jitka Klugarova, Miroslav Janura, Zdenek Svoboda, Zdenek Sos, Nicholas Stergiou, Miloslav Klugar
BACKGROUND: The aim of our study was to compare spatiotemporal parameters and lower limb and pelvis kinematics during the walking in patients with hallux valgus before and after surgery and in relation to a control group. METHODS: Seventeen females with hallux valgus, who underwent first metatarsal osteotomy, constituted our experimental group. The control group consisted of thirteen females. Kinematic data during walking were obtained using the Vicon MX system...
October 6, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27757079/difference-in-activity-in-the-supplementary-motor-area-depending-on-limb-combination-of-hand-foot-coordinated-movements
#20
Kento Nakagawa, Saeko Kawashima, Nobuaki Mizuguchi, Kazuyuki Kanosue
Periodic interlimb coordination shows lower performance when the ipsilateral hand and foot (e.g., right hand and right foot) are simultaneously moved than when the contralateral hand and foot (e.g., right hand and left foot) are simultaneously moved. The present study aimed to investigate how brain activity that is related to the dependence of hand-foot coordination on limb combination, using functional magnetic imaging. Twenty-one right-handed subjects performed periodic coordinated movements of the ipsilateral or contralateral hand and foot in the same or opposite direction in the sagittal plane...
2016: Frontiers in Human Neuroscience
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