scholarly journals The Biomechanical Effect of the Sensomotor Insole on a Pediatric Intoeing Gait

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Akiyoshi Mabuchi ◽  
Hiroshi Kitoh ◽  
Masato Inoue ◽  
Mitsuhiko Hayashi ◽  
Naoki Ishiguro ◽  
...  
Keyword(s):  
Gait Analysis ◽  
Internal Rotation ◽  
Stance Phase ◽  
Three Dimensional ◽  
Step Length ◽  
Femoral Anteversion ◽  
Swing Phase ◽  
Gait Patterns ◽  
Abnormal Gait ◽  
Biomechanical Effect

Background. The sensomotor insole (SMI) has clinically been shown to be successful in treating an intoeing gait. We investigated the biomechanical effect of SMI on a pediatric intoeing gait by using three-dimensional gait analysis. Methods. Six patients with congenital clubfeet and four patients with idiopathic intoeing gait were included. There were five boys and five girls with the average age at testing of 5.6 years. The torsional profile of the lower limb was assessed clinically. Three-dimensional gait analysis was performed in the same shoes with and without SMI. Results. All clubfeet patients exhibited metatarsal adductus, while excessive femoral anteversion and/or internal tibial torsion was found in patients with idiopathic intoeing gait. SMI showed significant decreased internal rotation of the proximal femur in terminal swing phase and loading response phase. The internal rotation of the tibia was significantly smaller in mid stance phase and terminal stance phase by SMI. In addition, SMI significantly increased the walking speed and the step length. Conclusions. SMI improved abnormal gait patterns of pediatric intoeing gait by decreasing femoral internal rotation through the end of the swing phase and the beginning of the stance phase and by decreasing tibial internal rotation during the stance phase.

Gait characteristics in children with Duchenne Muscular Dystrophy during the last 2 years of free ambulation (Preprint)

2021 ◽  
Author(s):  
Juliette Ropars ◽  
Laetitia Houx ◽  
Sylvain Brochard ◽  
François Rousseau ◽  
Carole Vuillerot ◽  
...  
Keyword(s):  
Duchenne Muscular Dystrophy ◽  
Muscular Dystrophy ◽  
Gait Analysis ◽  
Plantar Flexion ◽  
Reaction Force ◽  
Statistical Parametric Mapping ◽  
Initial Contact ◽  
Gait Patterns ◽  
Gait Characteristics ◽  
Abnormal Gait

BACKGROUND Duchenne Muscular Dystrophy (DMD), the most common neuromuscular disease in children, is a severe, progressive disease that affects skeletal muscle. Abnormal gait patterns in children with DMD result from compensatory adaptations of their locomotor system to maintain free ambulation in response to the slow, progressive muscle weakness, contractures and osteoarticular changes caused by the disease. Identification of gait abnormalities can be challenging because current understanding of how gait patterns changes progressively in children with DMD is limited. 3D gait analysis could thus increase understanding about the effects of the disease on gait, guide treatments and help to predict key milestones, such as ambulation loss. This latter event is important because it is an endpoint for clinical trials and studies of DMD disease progression. OBJECTIVE The primary aim of this study was to analyze the gait characteristics of children with Duchenne Muscular Dystrophy (DMD) during their last 2 years of free ambulation. The secondary aim was to explore the capacity of gait variables to predict the time of loss of ambulation. METHODS The gait of eighteen children with DMD and fourteen age-matched control children was recorded using a 3D optoelectronic system. Statistical parametric mapping was used to compare kinematic and kinetic variables between groups. Multivariate regression was used to identify predictors of the time of ambulation loss among spatiotemporal, kinematic and kinetic variables. RESULTS Compared with the controls, anterior pelvic tilt was increased during the whole gait cycle, hip flexion was increased during the second part of stance phase and of the entire swing, knee flexion was increased during swing, dorsiflexion was reduced during stance, and plantar flexion occurred in swing in the DMD group. Maximal ground reaction force, ankle dorsiflexion moment at initial contact, knee power absorption and generation during loading response, and maximal power generation of the hip at the end of stance were all reduced. A combination of gait variables, mostly kinetic, predicted the duration before ambulation loss to be less than three months. CONCLUSIONS The gait of children with DMD who are close to losing ambulation is characterized by specific deviations. The time of ambulation loss was accurately predicted by 3D gait variables, particularly kinetic. Combined with data from the clinical examination, 3D gait analysis provides valuable information to guide physical therapy, including targeted muscle strengthening and stretching, to help patients maintain free ambulation as long as possible.

THREE-DIMENSIONAL GAIT ANALYSIS AS A POTENTIAL AND QUANTIFIABLE MEASUREMENT IN THE CLINICAL EVALUATION OF ANKYLOSING SPONDYLITIS

2016 ◽  
Vol 16 (02) ◽  
pp. 1650001
Author(s):  
M. M. XUEMEI PIAO ◽  
M. D. LUAN XUE ◽  
M. D. SHUYUN JIANG ◽  
M. D. JIANDONG HU ◽  
M. M. GUOLING LI
Keyword(s):  
Ankylosing Spondylitis ◽  
Gait Analysis ◽  
Stride Length ◽  
Three Dimensional ◽  
Step Length ◽  
Lower Limbs ◽  
Spinal Mobility ◽  
Lateral Bending ◽  
Clinical Value ◽  
Spinal Rotation

The present study aimed to investigate the potential clinical value of three-dimensional gait analysis (3D-GA) system in evaluating ankylosing spondylitis (AS). Thirty-one patients with AS from September 2010 to August 2011, with 32 involved and 30 uninvolved lower limbs, were enrolled. Data of spatio-temporal parameters (step and stride length, velocity and cadence), time parameters (stance, single stance, double stance and swing phases) and kinematics parameters associated with spinal mobility (spinal lateral bending, spinal forward bending and spinal rotation) were analyzed by 3D-GA system, as well as curative effects of biologic therapy. Compared with normal values, AS patients showed decreased step and stride length ([Formula: see text]), increased cadence, longer swing and single stance phases ([Formula: see text]) and shorter stance and double stance phases ([Formula: see text]) in uninvolved lower limbs. In AS patients, reduced step length, stride length, velocity and cadence, shorter swing and single stance phases, longer stance and double stance phases ([Formula: see text]), increased lateral bending angle and decreased spinal rotation ([Formula: see text]) were detected by 3D-GA in involved lower limbs compared with uninvolved ones. In the 16 patients with decreased levels of ESR and CRP and improved ASAS scores after biology therapy, increased step length, stride length, velocity and cadence of the involved lower limbs were detected by 3D-GA ([Formula: see text]), as well as improved spinal mobility ([Formula: see text]). Hence, we concluded that 3D-GA has great potential value of clinical application for assessing and monitoring AS.

scholarly journals Validity Evaluation of an Inertial Measurement Unit (IMU) in Gait Analysis Using Statistical Parametric Mapping (SPM)

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3667
Author(s):  
Sangheon Park ◽  
Sukhoon Yoon
Keyword(s):  
Gait Analysis ◽  
Stance Phase ◽  
Statistical Parametric Mapping ◽  
Swing Phase ◽  
Measurement Unit ◽  
Continuous Variables ◽  
Parametric Mapping ◽  
Inertial Measurement ◽  
Ankle Joints ◽  
Measurement Units

Inertial measurement units (IMUs) are possible alternatives to motion-capture systems (Mocap) for gait analysis. However, IMU-based system performance must be validated before widespread clinical use. Therefore, this study evaluated the validity of IMUs using statistical parametric mapping (SPM) for gait analysis. Ten healthy males (age, 30.10 ± 3.28 years; height, 175.90 ± 5.17 cm; weight: 82.80 ± 17.15 kg) participated in this study; they were asked to walk normally on a treadmill. Data were collected during walking at the self-selected speeds (preferred speed, 1.34 ± 0.10 m/s) using both Mocap and an IMU. Calibration was performed directly before each gait measurement to minimize the IMU drift error over time. The lower-extremity joint angles of the hip, knee, and ankle were calculated and compared with IMUs and Mocap; the hip-joint angle did not differ significantly between IMUs and Mocap. There were significant differences in the discrete (max, min, and range of motion) and continuous variables (waveform: 0–100%) of the knee and ankle joints between IMUs and Mocap, particularly on the swing phase (p < 0.05). Our results suggest that IMU-based data can be used confidently during the stance phase but needs evaluation regarding the swing phase in gait analysis.

IDENTIFICATION OF KNEE FRONTAL PLANE KINEMATIC PATTERNS IN NORMAL GAIT BY PRINCIPAL COMPONENT ANALYSIS

2013 ◽  
Vol 13 (03) ◽  
pp. 1350026 ◽  
Author(s):  
NEILA MEZGHANI ◽  
ALEXANDRE FUENTES ◽  
NATHALY GAUDREAULT ◽  
AMAR MITICHE ◽  
RACHID AISSAOUI ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Stance Phase ◽  
Large Population ◽  
Frontal Plane ◽  
Principal Component ◽  
Component Analysis ◽  
Swing Phase ◽  
Statistical Hypothesis ◽  
Gait Patterns ◽  
Phase Cluster

The purpose of this study was to identify meaningful gait patterns in knee frontal plane kinematics from a large population of asymptomatic individuals. The proposed method used principal component analysis (PCA). It first reduced the data dimensionality, without loss of relevant information, by projecting the original kinematic data onto a subspace of significant principal components (PCs). This was followed by a discriminant model to separate the individuals' gait into homogeneous groups. Four descriptive gait patterns were identified and validated by clustering silhouette width and statistical hypothesis testing. The first pattern was close to neutral during the stance phase and in adduction during the swing phase (Cluster 1). The second pattern was in abduction during the stance phase and tends into adduction during the swing phase (Cluster 2). The third pattern was close to neutral during the stance phase and in abduction during the swing phase (Cluster 3) and the fourth was in abduction during both the stance and the swing phase (Cluster 4).

scholarly journals The effect of footwear mass on the gait patterns of unilateral below-knee amputees

1989 ◽  
Vol 13 (3) ◽  
pp. 140-144 ◽  
Author(s):  
J. M. Donn ◽  
D. Porter ◽  
V. C. Roberts
Keyword(s):  
Gait Analysis ◽  
Body Mass ◽  
Patellar Tendon ◽  
Swing Phase ◽  
Heel Strike ◽  
Gait Patterns ◽  
Maximum Flexion ◽  
Time Symmetry ◽  
Swing Time

This study reports an investigation into the effect of shoe mass on the gait patterns of below-knee (BK) amputees. Ten established unilateral BK, patellar-tendon-bearing prosthesis wearers were assessed using a VICON system of gait analysis. Incremental masses of 50g (up to 200g) were added to the subjects' shoes and data captured as they walked along a 15m measurement field. Coefficients of symmetry of various parameters of the swing phase (knee frequency symmetry, swing time symmetry, maximum flexion to heel strike time symmetry) were measured and their correlation was tested with the patient's preferrerd shoe mass and also their own shoe mass, all expressed as a proportion of body mass. The subjects' ‘preferred’ shoe mass (139-318g) showed the greatest symmetry in all the parameters examined (correlations 0.78-0.81 p<0.01 and <0.005), whereas there was no correlation between the subjects' own shoe mass (121-325g) and the symmetry coefficients measured.

Foot Orthotic Devices Decrease Transverse Plane Motion during Landing from a Forward Vertical Jump in Healthy Females

2009 ◽  
Vol 25 (4) ◽  
pp. 387-395 ◽  
Author(s):  
Walter L. Jenkins ◽  
Dorsey Shelton Williams ◽  
Alex Durland ◽  
Brandon Adams ◽  
Kevin O’Brien
Keyword(s):  
Internal Rotation ◽  
Repeated Measures ◽  
Vertical Jump ◽  
Three Dimensional ◽  
Plane Motion ◽  
Transverse Plane ◽  
Foot Orthoses ◽  
Over The Counter ◽  
Custom Made ◽  
Biomechanical Effect

The use of foot orthoses has been evaluated during a variety of functional activities. Twelve college-aged active females wore two types of foot orthoses and performed a vertical jump to determine the biomechanical effect of the orthoses on lower extremity transverse plane movement during landing. Data collection included three-dimensional analysis of the tibia, knee, and hip. A repeated-measures ANOVA was performed to determine the differences between no orthoses, over-the-counter, and custom-made orthoses with transverse plane motion. At the hip joint, there was significantly less internal rotation (p< .05) in the over-the-counter condition as compared with the no orthoses condition. There was significantly less tibial internal rotation (p< .05) in the custom-made condition as compared with no orthoses. Over-the-counter devices decreased transverse plane motion at the hip, whereas custom-made devices decreased transverse plane motion of the tibia.

The Influence of Hip Structure on Functional Valgus Collapse During a Single-Leg Forward Landing in Females

2019 ◽  
Vol 35 (6) ◽  
pp. 370-376
Author(s):  
Jennifer A. Hogg ◽  
Randy J. Schmitz ◽  
Sandra J. Shultz
Keyword(s):  
Internal Rotation ◽  
External Rotation ◽  
Three Dimensional ◽  
Femoral Anteversion ◽  
3 Dimensional ◽  
Hip Range Of Motion ◽  
Peak Knee ◽  
Knee Abduction ◽  
The Individual ◽  
Hip Internal Rotation

Clinical femoral anteversion (Craig test) and hip range of motion (ROM) have been associated with valgus collapse, but their clinical usefulness in predicting biomechanics is unknown. Our purpose was to determine the individual and combined predictive power of femoral anteversion and passive hip ROM on 3-dimensional valgus collapse (hip internal rotation and adduction, knee rotation, and abduction) during a single-leg forward landing in females. Femoral anteversion and passive hip ROM were measured on 20 females (24.9 [4.1] y, 168.7 [8.0] cm, 63.8 [11.6] kg). Three-dimensional kinematics and kinetics were collected over 5 trials of the task. Each variable was averaged across trials. Backward, stepwise regressions determined the extent to which our independent variables were associated with valgus collapse. The combination of greater hip internal and external rotation ROM (partial r = .52 and .56) predicted greater peak knee internal rotation moment (R2 = .38, P = .02). Less hip internal rotation ROM (partial r = −.44) predicted greater peak knee abduction moments (R2 = .20, P = .05). Greater total hip ROM (internal and external rotation ROM) was not consistently associated with combined motions of valgus collapse but was indicative of isolated knee moments. Passive hip ROM is more associated with knee moments than is femoral anteversion as measured with Craig test.

scholarly journals Development of a Decision Support System for Ankle-Foot Orthosis (AFO) Design Based on Lumped Parameter Models for Human Locomotion Prediction

2019 ◽  
Vol 63 (1) ◽  
pp. 463-467
Author(s):  
Qianyi Fu ◽  
Thomas J. Armstrong ◽  
Albert Shih
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Stride Length ◽  
Step Length ◽  
Gait Patterns ◽  
Abnormal Gait ◽  
Lumped Parameter ◽  
Lumped Parameter Models ◽  
Pathological Gait

This work aims to develop a decision support system (DSS) to help orthotic clinicians design AFOs to correct pathological gait patterns that result from various nerve impairments. The DSS utilizes lumped parameter models to predict key joint angles, step length, and swing and stance durations based on anthropometric data, impairment and AFO design. The predicted gait patterns by DSS were in general agreement with data from available literature. In the presented drop foot example, the DSS shows that increasing AFO stiffness would result in increased stride duration on both sides; proper AFO stiffness may result in increased stride length on both sides comparing with stride length for pathological gait without AFO. The DSS can be used by clinicians to suggest proper AFO’s mechanical properties, such as stiffness and range of motion, to help improve abnormal gait patterns resulting from underlying nerve impairments.

The influence of a powered knee–ankle–foot orthosis on walking in poliomyelitis subjects: A pilot study

2015 ◽  
Vol 40 (3) ◽  
pp. 377-383 ◽  
Author(s):  
Mokhtar Arazpour ◽  
Alireza Moradi ◽  
Mohammad Samadian ◽  
Mahmood Bahramizadeh ◽  
Mahmoud Joghtaei ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Flexion ◽  
Stance Phase ◽  
Step Length ◽  
Gait Pattern ◽  
Swing Phase ◽  
Ankle Foot Orthosis ◽  
Active Flexion ◽  
Locked Knee ◽  
Foot Orthosis

Background:Traditionally, the anatomical knee joint is locked in extension when walking with a conventional knee–ankle–foot orthosis. A powered knee–ankle–foot orthosis was developed to provide restriction of knee flexion during stance phase and active flexion and extension of the knee during swing phase of gait.Objective:The purpose of this study was to determine differences of the powered knee–ankle–foot orthosis compared to a locked knee–ankle–foot orthosis in kinematic data and temporospatial parameters during ambulation.Study design:Quasi—experimental design.Methods:Subjects with poliomyelitis (n = 7) volunteered for this study and undertook gait analysis with both the powered and the conventional knee–ankle–foot orthoses. Three trials per orthosis were collected while each subject walked along a 6-m walkway using a calibrated six-camera three-dimensional video-based motion analysis system.Results:Walking with the powered knee–ankle–foot orthosis resulted in a significant reduction in both walking speed and step length (both 18%), but a significant increase in stance phase percentage compared to walking with the conventional knee–ankle–foot orthosis. Cadence was not significantly different between the two test conditions ( p = 0.751). There was significantly higher knee flexion during swing phase and increased hip hiking when using the powered orthosis.Conclusion:The new powered orthosis permitted improved knee joint kinematic for knee–ankle–foot orthosis users while providing knee support in stance and active knee motion in swing in the gait cycle. Therefore, the new powered orthosis provided more natural knee flexion during swing for orthosis users compared to the locked knee–ankle–foot orthosis.Clinical relevanceThis orthosis has the potential to improve knee joint kinematics and gait pattern in poliomyelitis subjects during walking activities.

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