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

Yen, Chu-Ling; Chang, Ku‐Chou; Wu, Ching‐yi; Hsieh, Yu‐Wei

doi:10.1589/jpts.31.638

Cited by 7 publications

(8 citation statements)

References 27 publications

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“…No significant correlation was found between walking speed at discharge and stride regularity at admission. The patients with stroke in this study had superior stride regularity compared with those in previous studies 21) . It was suggested that stride regularity may have less effect on walking speed than step regularity.…”

Section: Discussioncontrasting

confidence: 39%

“…A higher HR value indicates a smoother gait. Accelerometry variables have been tested for their reliability and validity in gait assessment after a subacute stroke 19 , 20 , 21 , 23 ) .…”

Section: Participants and Methodsmentioning

confidence: 99%

“…However, three-dimensional motion capture systems and force plates are limited in their use in field research because of the high cost of the equipment and limited measurement space. In contrast, a small triaxial accelerometer is inexpensive, has a simple measurement method, and enables gait analysis without restricting measurement space 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ) . Furthermore, the index of gait with a small triaxial accelerometer has superior validity for discriminating fall risk in patients with stroke compared to clinical measures such as gait speed and balance index, demonstrating its usefulness in gait assessment 23 ) .…”

Section: Introductionmentioning

confidence: 99%

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Relationship between gait regularity and harmony, and gait speed at discharge in inpatients with subacute stroke

et al. 2023

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Accelerometry indices are a promising and simple method to quantify gait stability. However, the long-term relationship between gait stability and walking ability in patients with stroke has not been fully investigated. The purpose of this study was to longitudinally examine the relationship between gait regularity and harmony at admission and gait speed at discharge in inpatients with subacute mild stroke. [Participants and Methods] Sixteen patients with subacute stroke (median age, 69.5 years [1st-3rd interquartile range, 58.0-73.8 years]; 13 males) were enrolled in the study. A Spearman's rank correlation coefficient was calculated for step regularity, stride regularity, the harmonic ratio at admission, and the walking speed at discharge. We also calculated the partial rank order correlation, controlling for balance ability. [Results] The vertical step regularity, harmonic ratio, and anterior-posterior harmonic ratio were all positively correlated with the walking speed at discharge. Positive correlations with vertical step regularity and harmonic ratio were found in partial rank order correlations when controlled for balance ability. [Conclusion] Vertical step regularity and gait harmony had predictive validity for discharge gait speed in patients with subacute stroke.

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Section: Discussioncontrasting

confidence: 39%

“…A higher HR value indicates a smoother gait. Accelerometry variables have been tested for their reliability and validity in gait assessment after a subacute stroke 19 , 20 , 21 , 23 ) .…”

Section: Participants and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Relationship between gait regularity and harmony, and gait speed at discharge in inpatients with subacute stroke

et al. 2023

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“…For example, a greater proportion of single support using the paretic limb was evident when walking faster, suggesting increased usage of this limb during the gait cycle [47]. Several studies assessed movement smoothness in individuals with stroke using a waist-mounted accelerometer [48][49][50][51][52], and pieces of evidence on the effect of speed are lacking. It is known that, in older adults, greater walking speeds may induce less smooth accelerations in ML and AP directions [53].…”

Section: Plos Onementioning

confidence: 99%

Movement smoothness in chronic post-stroke individuals walking in an outdoor environment—A cross-sectional study using IMU sensors

et al. 2021

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Background Walking speed is often used in the clinic to assess the level of gait impairment following stroke. Nonetheless, post-stroke individuals may employ the same walking speed but at a distinct movement quality. The main objective of this study was to explore a novel movement quality metric, the estimation of gait smoothness by the spectral arc length (SPARC), in individuals with a chronic stroke displaying mild/moderate or severe motor impairment while walking in an outdoor environment. Also, to quantify the correlation between SPARC, gait speed, motor impairment, and lower limb spasticity focused on understanding the relationship between the movement smoothness metric and common clinical assessments. Methods Thirty-two individuals with a chronic stroke and 32 control subjects participated in this study. The 10 meters walking test (10 MWT) was performed at the self-selected speed in an outdoor environment. The 10 MWT was instrumented with an inertial measurement unit system (IMU), which afforded the extraction of trunk angular velocities (yaw, roll, and pitch) and subsequent SPARC calculation. Results Movement smoothness was not influenced by gait speed in the control group, indicating that SPARC may constitute an additional and independent metric in the gait assessment. Individuals with a chronic stroke displayed reduced smoothness in the yaw and roll angular velocities (lower SPARC) compared with the control group. Also, severely impaired participants presented greater variability in smoothness along the 10 MWT. In the stroke group, a smoother gait in the pitch angular velocity was correlated with lower limb spasticity, likely indicating adaptive use of spasticity to maintain the pendular walking mechanics. Conversely, reduced smoothness in the roll angular velocity was related to pronounced spasticity. Conclusions Individuals with a chronic stroke displayed reduced smoothness in the yaw and roll angular velocities while walking in an outdoor environment. The quantification of gait smoothness using the SPARC metric may represent an additional outcome in clinical assessments of gait in individuals with a chronic stroke.

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“…Concerning its application on individuals with stroke, to date, several studies reported that the HR could be considered a robust outcome in quantifying the step-to-step asymmetry during gait [ 18 , 32 , 33 , 34 , 35 , 36 , 37 ]. However, to the best of our knowledge, the HR has not been used so far as an indicator of the effectiveness of rehabilitative treatment targeting the improvement of gait in individuals with stroke.…”

Section: Introductionmentioning

confidence: 99%

Functional Electrical Stimulation for Foot Drop in Post-Stroke People: Quantitative Effects on Step-to-Step Symmetry of Gait Using a Wearable Inertial Sensor

Schifino

Cimolin

Cunha

et al. 2021

Sensors

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The main purpose of the present study was to assess the effects of foot drop stimulators (FDS) in individuals with stroke by means of spatio-temporal and step-to-step symmetry, harmonic ratio (HR), parameters obtained from trunk accelerations acquired using a wearable inertial sensor. Thirty-two patients (age: 56.84 ± 9.10 years; 68.8% male) underwent an instrumental gait analysis, performed using a wearable inertial sensor before and a day after the 10-session treatment (PRE and POST sessions). The treatment consisted of 10 sessions of 20 min of walking on a treadmill while using the FDS device. The spatio-temporal parameters and the HR in the anteroposterior (AP), vertical (V), and mediolateral (ML) directions were computed from trunk acceleration data. The results showed that time had a significant effect on the spatio-temporal parameters; in particular, a significant increase in gait speed was detected. Regarding the HRs, the HR in the ML direction was found to have significantly increased (+20%), while those in the AP and V directions decreased (approximately 13%). Even if further studies are necessary, from these results, the HR seems to provide additional information on gait patterns with respect to the traditional spatio-temporal parameters, advancing the assessment of the effects of FDS devices in stroke patients.

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

Cited by 7 publications

References 27 publications

Relationship between gait regularity and harmony, and gait speed at discharge in inpatients with subacute stroke

Relationship between gait regularity and harmony, and gait speed at discharge in inpatients with subacute stroke

Movement smoothness in chronic post-stroke individuals walking in an outdoor environment—A cross-sectional study using IMU sensors

Functional Electrical Stimulation for Foot Drop in Post-Stroke People: Quantitative Effects on Step-to-Step Symmetry of Gait Using a Wearable Inertial Sensor

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