Microcomputer-based low-cost method for measurement of spatial and temporal parameters of gait

Law, H. T.

doi:10.1016/0141-5425(87)90021-5

Cited by 33 publications

(12 citation statements)

References 8 publications

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“…Some data in the available literature contrasts with these findings. Sutherland et al (1980), Law (1987), Gundersen et al (1989), Allard et al (1996) and Macellari et al (1999) noted differences in kinematic parameters between the right and the left extremities in normal gait. These discrepancies are likely to be a result of differences in gait speed.…”

Section: Discussionmentioning

confidence: 93%

An Evaluation of Symmetry in the Lower Limb Joints During the Able-Bodied Gait of Women and Men

Forczek

Staszkiewicz

2012

Journal of Human Kinetics

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For many years, mainly to simplify data analysis, scientists assumed that during a gait, the lower limbs moved symmetrically. However, even a cursory survey of the more recent literature reveals that the human walk is symmetrical only in some aspects. That is why the presence of asymmetry should be considered in all studies of locomotion. The gait data were collected using the 3D motion analysis system Vicon. The inclusion criteria allowed the researchers to analyze a very homogenous group, which consisted of 54 subjects (27 women and 27 men). Every selected participant moved at a similar velocity: approximately 1,55 m/s. The analysis included kinematic parameters defining spatio-temporal structure of locomotion, as well as angular changes of the main joints of the lower extremities (ankle, knee and hip) in the sagittal plane. The values of those variables were calculated separately for the left and for the right leg in women and men. This approach allowed us to determine the size of the differences, and was the basis for assessing gait asymmetry using a relative asymmetry index, which was constructed by the authors. Analysis of the results demonstrates no differences in the temporal and phasic variables of movements of the right and left lower limb. However, different profiles of angular changes in the sagittal plane were observed, measured bilaterally for the ankle joint.

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Section: Discussionmentioning

confidence: 93%

An Evaluation of Symmetry in the Lower Limb Joints During the Able-Bodied Gait of Women and Men

Forczek

Staszkiewicz

2012

Journal of Human Kinetics

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“…galloping [59]. In classical Monte Carlo CV, at each iteration, one CVE is computed using (13), where as in our CV method we compute three types of CVEs. Each CVE computation uses the same test set, but the models are fit using three different training sets.…”

Section: A Test Of Symmetry Using Monte Carlo Cross-validationmentioning

confidence: 99%

“…The common trend among previous work is the comparison of kinetic and/or kinematic gait parameters between the right and left halves of the body, i.e. joint angles [7][8][9][10], ranges [11,12] and velocities [13], stride lengths [10,12,14,15], ground reaction forces [16][17][18][19], EMG profiles [20][21][22][23], limbs forces and moments [24][25][26][27], or center-of-mass oscillations [28][29][30]. However, as Sadeghi et.…”

Section: Introductionmentioning

confidence: 99%

Walking dynamics are symmetric (enough)

Ankaralı

Sefati

Madhav

et al. 2015

J. R. Soc. Interface.

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Many biological phenomena such as locomotion, circadian cycles and breathing are rhythmic in nature and can be modelled as rhythmic dynamical systems. Dynamical systems modelling often involves neglecting certain characteristics of a physical system as a modelling convenience. For example, human locomotion is frequently treated as symmetric about the sagittal plane. In this work, we test this assumption by examining human walking dynamics around the steady state (limit-cycle). Here, we adapt statistical cross-validation in order to examine whether there are statistically significant asymmetries and, even if so, test the consequences of assuming bilateral symmetry anyway. Indeed, we identify significant asymmetries in the dynamics of human walking, but nevertheless show that ignoring these asymmetries results in a more consistent and predictive model. In general, neglecting evident characteristics of a system can be more than a modelling convenience-it can produce a better model.

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“…One such system uses perforated paper tape, attached to the heels of both shoes, which is pulled through an optical reader as the subject walks forwards (Law, 1987;Law & Minns, 1989). One such system uses perforated paper tape, attached to the heels of both shoes, which is pulled through an optical reader as the subject walks forwards (Law, 1987;Law & Minns, 1989).…”

Section: Direct Motion Measurement Systemsmentioning

confidence: 99%

Methods of gait analysis

Whittle

1988

Gait Analysis

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Microcomputer-based low-cost method for measurement of spatial and temporal parameters of gait

Cited by 33 publications

References 8 publications

An Evaluation of Symmetry in the Lower Limb Joints During the Able-Bodied Gait of Women and Men

An Evaluation of Symmetry in the Lower Limb Joints During the Able-Bodied Gait of Women and Men

Walking dynamics are symmetric (enough)

Methods of gait analysis

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