Is gait variability reliable? An assessment of spatio-temporal parameters of gait variability during continuous overground walking

2014 ◽  
Vol 39 (1) ◽  
pp. 615-617 ◽  
Author(s):  
N. König ◽  
N.B. Singh ◽  
J. von Beckerath ◽  
L. Janke ◽  
W.R. Taylor
Keyword(s):  
Gait Variability ◽  
Overground Walking ◽  
Temporal Parameters ◽  
Spatio Temporal

Influence of the overground walking speed control modality: Modification to the walk ratio and spatio-temporal parameters of gait

2021 ◽  
Vol 83 ◽  
pp. 256-261
Author(s):  
T. Legrand ◽  
H. Younesian ◽  
C. Gélinas-Trudel ◽  
C.V. Barthod ◽  
A. Campeau-Lecours ◽  
...  
Keyword(s):  
Walking Speed ◽  
Speed Control ◽  
Overground Walking ◽  
Temporal Parameters ◽  
Walk Ratio ◽  
Spatio Temporal

scholarly journals Overground Walking in a Fully Immersive Virtual Reality: A Comprehensive Study on the Effects on Full-Body Walking Biomechanics

2021 ◽  
Vol 9 ◽  
Author(s):  
Brian Horsak ◽  
Mark Simonlehner ◽  
Lucas Schöffer ◽  
Bernhard Dumphart ◽  
Arian Jalaeefar ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Real World ◽  
Gait Training ◽  
Gait Rehabilitation ◽  
Overground Walking ◽  
Convenience Sample ◽  
Single Measure ◽  
The Real ◽  
Temporal Parameters ◽  
Spatio Temporal

Virtual reality (VR) is an emerging technology offering tremendous opportunities to aid gait rehabilitation. To this date, real walking with users immersed in virtual environments with head-mounted displays (HMDs) is either possible with treadmills or room-scale (overground) VR setups. Especially for the latter, there is a growing interest in applications for interactive gait training as they could allow for more self-paced and natural walking. This study investigated if walking in an overground VR environment has relevant effects on 3D gait biomechanics. A convenience sample of 21 healthy individuals underwent standard 3D gait analysis during four randomly assigned walking conditions: the real laboratory (RLab), a virtual laboratory resembling the real world (VRLab), a small version of the VRlab (VRLab−), and a version which is twice as long as the VRlab (VRLab+). To immerse the participants in the virtual environment we used a VR-HMD, which was operated wireless and calibrated in a way that the virtual labs would match the real-world. Walking speed and a single measure of gait kinematic variability (GaitSD) served as primary outcomes next to standard spatio-temporal parameters, their coefficients of variant (CV%), kinematics, and kinetics. Briefly described, participants demonstrated a slower walking pattern (−0.09 ± 0.06 m/s) and small accompanying kinematic and kinetic changes. Participants also showed a markedly increased gait variability in lower extremity gait kinematics and spatio-temporal parameters. No differences were found between walking in VRLab+ vs. VRLab−. Most of the kinematic and kinetic differences were too small to be regarded as relevant, but increased kinematic variability (+57%) along with increased percent double support time (+4%), and increased step width variability (+38%) indicate gait adaptions toward a more conservative or cautious gait due to instability induced by the VR environment. We suggest considering these effects in the design of VR-based overground training devices. Our study lays the foundation for upcoming developments in the field of VR-assisted gait rehabilitation as it describes how VR in overground walking scenarios impacts our gait pattern. This information is of high relevance when one wants to develop purposeful rehabilitation tools.

scholarly journals The Accuracy and Precision of Gait Spatio-Temporal Parameters Extracted from an Instrumented Sock during Treadmill and Overground Walking in Healthy Subjects and Patients with a Foot Impairment Secondary to Psoriatic Arthritis

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6179
Author(s):  
Roua Walha ◽  
Karina Lebel ◽  
Nathaly Gaudreault ◽  
Pierre Dagenais ◽  
Andrea Cereatti ◽  
...  
Keyword(s):  
Psoriatic Arthritis ◽  
Motion Capture ◽  
Treadmill Walking ◽  
Cycle Duration ◽  
Motion Capture System ◽  
Overground Walking ◽  
Temporal Parameters ◽  
Parameter Estimations ◽  
Accuracy And Precision ◽  
Spatio Temporal

The objectives of this study were to assess the accuracy and precision of a system combining an IMU-instrumented sock and a validated algorithm for the estimation of the spatio-temporal parameters of gait. A total of 25 healthy participants (HP) and 21 patients with foot impairments secondary to psoriatic arthritis (PsA) performed treadmill walking at three different speeds and overground walking at a comfortable speed. HP performed the assessment over two sessions. The proposed system’s estimations of cadence (CAD), gait cycle duration (GCD), gait speed (GS), and stride length (SL) obtained for treadmill walking were validated versus those estimated with a motion capture system. The system was also compared with a well-established multi-IMU-based system for treadmill and overground walking. The results showed a good agreement between the motion capture system and the IMU-instrumented sock in estimating the spatio-temporal parameters during the treadmill walking at normal and fast speeds for both HP and PsA participants. The accuracy of GS and SL obtained from the IMU-instrumented sock was better compared to the established multi-IMU-based system in both groups. The precision (inter-session reliability) of the gait parameter estimations obtained from the IMU-instrumented sock was good to excellent for overground walking and treadmill walking at fast speeds, but moderate-to-good for slow and normal treadmill walking. The proposed IMU-instrumented sock offers a novel form factor addressing the wearability issues of IMUs and could potentially be used to measure spatio-temporal parameters under clinical conditions and free-living conditions.

scholarly journals Kinematic Analysis of Lower Limb Joint Asymmetry during Gait in People with Multiple Sclerosis

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 598
Author(s):  
Massimiliano Pau ◽  
Bruno Leban ◽  
Michela Deidda ◽  
Federica Putzolu ◽  
Micaela Porta ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Lower Limb ◽  
Sagittal Plane ◽  
Cross Sectional Study ◽  
Camera Motion ◽  
Cross Sectional ◽  
Temporal Parameters ◽  
Wide Range ◽  
Edss Score ◽  
Spatio Temporal

The majority of people with Multiple Sclerosis (pwMS), report lower limb motor dysfunctions, which may relevantly affect postural control, gait and a wide range of activities of daily living. While it is quite common to observe a different impact of the disease on the two limbs (i.e., one of them is more affected), less clear are the effects of such asymmetry on gait performance. The present retrospective cross-sectional study aimed to characterize the magnitude of interlimb asymmetry in pwMS, particularly as regards the joint kinematics, using parameters derived from angle-angle diagrams. To this end, we analyzed gait patterns of 101 pwMS (55 women, 46 men, mean age 46.3, average Expanded Disability Status Scale (EDSS) score 3.5, range 1–6.5) and 81 unaffected individuals age- and sex-matched who underwent 3D computerized gait analysis carried out using an eight-camera motion capture system. Spatio-temporal parameters and kinematics in the sagittal plane at hip, knee and ankle joints were considered for the analysis. The angular trends of left and right sides were processed to build synchronized angle–angle diagrams (cyclograms) for each joint, and symmetry was assessed by computing several geometrical features such as area, orientation and Trend Symmetry. Based on cyclogram orientation and Trend Symmetry, the results show that pwMS exhibit significantly greater asymmetry in all three joints with respect to unaffected individuals. In particular, orientation values were as follows: 5.1 of pwMS vs. 1.6 of unaffected individuals at hip joint, 7.0 vs. 1.5 at knee and 6.4 vs. 3.0 at ankle (p < 0.001 in all cases), while for Trend Symmetry we obtained at hip 1.7 of pwMS vs. 0.3 of unaffected individuals, 4.2 vs. 0.5 at knee and 8.5 vs. 1.5 at ankle (p < 0.001 in all cases). Moreover, the same parameters were sensitive enough to discriminate individuals of different disability levels. With few exceptions, all the calculated symmetry parameters were found significantly correlated with the main spatio-temporal parameters of gait and the EDSS score. In particular, large correlations were detected between Trend Symmetry and gait speed (with rho values in the range of –0.58 to –0.63 depending on the considered joint, p < 0.001) and between Trend Symmetry and EDSS score (rho = 0.62 to 0.69, p < 0.001). Such results suggest not only that MS is associated with significantly marked interlimb asymmetry during gait but also that such asymmetry worsens as the disease progresses and that it has a relevant impact on gait performances.

Texting While Walking Induces Gait Pattern Alterations in Healthy Older Adults

2018 ◽  
Vol 62 (1) ◽  
pp. 1908-1912 ◽  
Author(s):  
Massimiliano Pau ◽  
Micaela Porta ◽  
Giuseppina Pilloni ◽  
Federica Corona ◽  
Maria Chiara Fastame ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Complexity ◽  
Gait Pattern ◽  
Middle Aged ◽  
Similar Reduction ◽  
Gait Patterns ◽  
Healthy Older Adults ◽  
Double Support ◽  
Temporal Parameters ◽  
Spatio Temporal

The use of a mobile phone for texting purposes results in distracted walking which may lead to injuries. In particular, texting while walking has been shown to induce significant alterations in gait patterns. This study aimed to assess whether changes in the main spatio-temporal parameters of gait when simultaneously engaged in texting on a smartphone and walking are different in older adults relative to young and middle- aged individuals. A total of 57 participants divided in three groups (19 older adults aged over 65, 19 young aged 20-40 and 19 middle-aged aged 41-64) were tested in two conditions: walking, and walking while texting on a smartphone. Spatio-temporal parameters of gait were assessed using a wearable accelerometer located on the lower back. The results show that texting induced similar reduction of gait speed, stride length and cadence in all groups. Slight (although significant) alterations of stance, swing and double support phases duration were found only for middle-aged participants. Such findings suggest that modifications of gait patterns due to texting seem unaffected by age, probably due to different perceptions of the cognitive complexity of the task and differential prioritization of its motor and cognitive aspects.

The effects of different carrying methods on locomotion stability, gait spatio-temporal parameters and spinal stresses

2018 ◽  
Vol 67 ◽  
pp. 81-88 ◽  
Author(s):  
Mohammed Alamoudi ◽  
Francesco Travascio ◽  
Arzu Onar-Thomas ◽  
Moataz Eltoukhy ◽  
Shihab Asfour
Keyword(s):  
Temporal Parameters ◽  
Spatio Temporal ◽  
Spinal Stresses

scholarly journals Spatio temporal parameters and symmetry in subjects ascending and descending a ramp, using three different prosthetic feet

2020 ◽  
Vol 34 (2) ◽  
pp. 955-961
Author(s):  
M. Riveras ◽  
E. Ravera ◽  
A. F. Shaheen ◽  
D. Ewins ◽  
Paola Catalfamo-Formento
Keyword(s):  
Temporal Parameters ◽  
Prosthetic Feet ◽  
Spatio Temporal
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