Evaluation of gait symmetry using a tri-axial accelerometer in stroke patients

Terui, Yoshino; Suto, Eriko; Konno, Yohei; Kubota, K.; Iwakura, Masahiro; Satou, Mizuki; Nitta, Shioto; Hasegawa, Kouichi; Satake, Masahiro; Shioya, Takanobu

doi:10.3233/nre-172235

Cited by 10 publications

(16 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The portable, inexpensive, and easy-to-use body-worn accelerometers has risen for objective gait analysis11,12,13,14 ) . Several studies used data from trunk accelerometers to infer gait characteristics for 3 derivatives: (1) harmonic ratio, (2) interstride variability, and (3) stride regularity.…”

Section: Introductionmentioning

confidence: 99%

The relationship between trunk acceleration parameters and kinematic characteristics during walking in patients with stroke

Yen

Chang

et al. 2019

J Phys Ther Sci

View full text Add to dashboard Cite

[Purpose] Limited literature has investigated the relationships between acceleration-based gait characteristics and kinematic information from motion analysis systems in gait analysis. The purpose of this study is to determine whether acceleration-based gait characteristics were associated with gait characteristics by motion analysis systems in patients with stroke. [Participants and Methods] Seventeen patients with stroke walked along a 10-m-long walkway at their comfortable speed. Trunk acceleration was measured with an accelerometer. Several reflective markers over bony landmarks on the lower extremities were used to capture movements. We evaluated the correlations of variables calculated between the trunk accelerometers and the motion analysis system. [Results] Walking speed was positively correlated with harmonic ratios along the anteroposterior axis and stride regularity along the vertical and anteroposterior axes. Harmonic ratios were associated with the stance phase percent on the unaffected side. Stride regularity was associated with the stance phase percent on both sides. Smaller interstride variability was associated with smaller peak ankle plantarflexion during both phases and greater peak ankle dorsiflexion during swing phase. Stride regularity is positively associated with maximal knee flexion during swing phase. [Conclusion] Relationships with spatiotemporal and joint kinematic parameters from the motion analysis system support the potential use of accelerometers.

show abstract

Section: Introductionmentioning

confidence: 99%

The relationship between trunk acceleration parameters and kinematic characteristics during walking in patients with stroke

Yen

Chang

et al. 2019

J Phys Ther Sci

View full text Add to dashboard Cite

show abstract

“…Portable devices for quantitative gait analysis have been developed, and these devices have the advantage in clinical scenarios of needing only a walkway, rather than any large space or facility [18,19,[21][22][23][29][30][31]. In the present study, we validated the reproducibility of a tri-axial accelerometer used in gait assessment by performing test-retest measurements within a 3-month period 1 month after the first evaluation.…”

Section: Discussionmentioning

confidence: 90%

“…In practice, qualitative assessments have often been performed without any devices, but with the use of clinical scores [16,17], and no standard device for quantitative gait assessment has been established. The portable devices for gait assessment, particularly a tri-axial accelerometer [18][19][20][21], that have been developed recently exhibit an accuracy equal to that of large devices such as treadmills in the assessment of gait performance and are used in practical and clinical studies [18][19][20][21][22][23][24]. Tri-axial accelerometers have the advantage of easy attachment to the body or foot of subjects with a belt and the estimation of various gait parameters such as movements of the body trunk, step time, and ground reaction force from the acceleration wave dataset in the three axial directions during walking.…”

Section: Subjectsmentioning

confidence: 99%

The Coefficient of Variation of Step Time Can Overestimate Gait Abnormality: Test-Retest Reliability of Gait-Related Parameters Obtained with a Tri-Axial Accelerometer in Healthy Subjects

Fujiwara

Sato

Sugawara

et al. 2020

Sensors

View full text Add to dashboard Cite

The aim of this study was to investigate whether variation in gait-related parameters among healthy participants could help detect gait abnormalities. In total, 36 participants (21 men, 15 women; mean age, 35.7 ± 9.9 years) performed a 10-m walk six times while wearing a tri-axial accelerometer fixed at the L3 level. A second walk was performed ≥1 month after the first (mean interval, 49.6 ± 7.6 days). From each 10-m data set, the following nine gait-related parameters were automatically calculated: assessment time, number of steps, stride time, cadence, ground force reaction, step time, coefficient of variation (CV) of step time, velocity, and step length. Six repeated measurement values were averaged for each gait parameter. In addition, for each gait parameter, the difference between the first and second assessments was statistically examined, and the intraclass correlation coefficient (ICC) was calculated with the level of significance set at p < 0.05. Only the CV of step time showed a significant difference between the first and second assessments (p = 0.0188). The CV of step time also showed the lowest ICC, at <0.50 (0.425), among all parameters. Test–retest results of gait assessment using a tri-axial accelerometer showed sufficient reproducibility in terms of the clinical evaluation of all parameters except the CV of step time.

show abstract

“…We calculated the LI,7,14 which indicates the symmetry based on both ML and VT accelerations. For the calculation of an LI, an LF must be drawn.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous study, the LI visually and numerically evaluated the left–right symmetry of a Lissajous figure (LF); this LF is made from trunk acceleration data 14. Further, it was clear that the LI during gait was effective at evaluating gait balance in patients with stroke 14. The gait parameter has been found useful for the patients with COPD, but the trunk movement during walking has not been evaluated or adjusted for patients with COPD.…”

Section: Introductionmentioning

confidence: 99%

New evaluation of trunk movement and balance during walking in COPD patients by a triaxial accelerometer

Terui¹,

Iwakura²,

Suto³

et al. 2018

COPD

Self Cite

View full text Add to dashboard Cite

BackgroundIndividuals with COPD may experience ambulatory difficulty due to both effort intolerance arising from respiratory dysfunction and impaired balance control during walking. However, the trunk movement during walking has not been evaluated or adjusted for patients with COPD. The Lissajous index (LI) visually and numerically evaluates the left–right symmetry of the trunk movement during walking and is useful in clinical practice. In COPD patients, the LI is used as an indicator of the left–right symmetry of the trunk during walking. Here, we used the LI to evaluate the symmetry of COPD patients based on bilateral differences in mediolateral and vertical accelerations, and we investigated the correlation between the patients’ symmetry evaluation results and their physical function.Patients and methodsSixteen stable COPD patients (all males; age 71.3±9.2 years) and 26 healthy control subjects (15 males; age 68.2±6.9 years) participated in this study. They performed the 10-minute walk test at a comfortable gait speed wearing a triaxial accelerometer, and we measured their trunk acceleration for the evaluation of symmetry. Motor functions were also evaluated in the patients with COPD.ResultsThe average mediolateral bilateral difference and LI values of the COPD patients were significantly larger than those of the healthy subjects. The COPD patients’ LI values were significantly correlated with their static balance.ConclusionThe LI measured using a triaxial accelerometer during walking is useful in balance assessments of patients with COPD.

show abstract

Evaluation of gait symmetry using a tri-axial accelerometer in stroke patients

Abstract: It was clear that LI during gait was effective at evaluating gait symmetry and balance. LI was indicated to be useful in evaluating gait in patients with stroke.

Cited by 10 publications

References 26 publications

The relationship between trunk acceleration parameters and kinematic characteristics during walking in patients with stroke

The relationship between trunk acceleration parameters and kinematic characteristics during walking in patients with stroke

The Coefficient of Variation of Step Time Can Overestimate Gait Abnormality: Test-Retest Reliability of Gait-Related Parameters Obtained with a Tri-Axial Accelerometer in Healthy Subjects

New evaluation of trunk movement and balance during walking in COPD patients by a triaxial accelerometer

Contact Info

Product

Resources

About