Spatio-temporal parameters of gait measured by an ambulatory system using miniature gyroscopes

Aminian, Kamiar; Najafi, Bijan; Büla, Christophe; Leyvraz, P. F.; Robert, Ph.

doi:10.1016/s0021-9290(02)00008-8

Cited by 720 publications

(684 citation statements)

References 15 publications

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“…Based on algorithms described elsewhere [18][19][28][29], different parameters of gait and postural transition during iTUG performance were measured.…”

Section: Discussionmentioning

confidence: 99%

Reliability and validity of the inertial sensor-based Timed “Up and Go” test in individuals affected by stroke

et al. 2016

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Abstract-The instrumented Timed " Up and Go" test (iTUG) has the potential for playing an important role in providing clinically useful information regarding an individual's balance and mobility that cannot be derived from the original singleoutcome Timed "Up and Go" test protocol. The purpose of this study was to determine the reliability and validity of the iTUG using body-fixed inertial sensors in people affected by stroke. For test-retest reliability analysis, 14 individuals with stroke and 25 nondisabled elderly patients were assessed. For validity analysis, an age-matched comparison of 12 patients with stroke and 12 nondisabled controls was performed. Out of the 14 computed iTUG metrics, the majority showed excellent testretest reliability expressed by high intraclass correlation coefficients (range 0.431-0.994) together with low standard error of measurement and smallest detectable difference values. BlandAltman plots demonstrated good agreement between two repeated measurements. Significant differences between patients with stroke and nondisabled controls were found in 9 of 14 iTUG parameters analyzed. Consequently, these results warrant the future application of the inertial sensor-based iTUG for the assessment of physical deficits poststroke in longitudinal study designs.

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“…Based on algorithms described elsewhere [18][19][28][29], different parameters of gait and postural transition during iTUG performance were measured.…”

Section: Discussionmentioning

confidence: 99%

Reliability and validity of the inertial sensor-based Timed “Up and Go” test in individuals affected by stroke

et al. 2016

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“…marked by triangles) each side of a large positive peak (circles) as shown in Figure 2. The positive peak corresponds to mid-swing (MSW) whereas two negative peaks before and after MSW correspond to TO and IC, respectively [8].…”

Section: B Experimental Protocolmentioning

confidence: 99%

“…However, they are susceptible to mechanical failure, have generally poor durability and low cosmetic acceptance [7]. Among wearable sensors, accelerometers and gyroscopes are being deployed at different body locations for long-term monitoring of human gait [3,[6][7][8][9][10][11][12][13]. Recent advancements allow these sensors to be miniaturized, with faster processing capability and higher memory capacities to support outdoor applications [9].…”

Section: Introductionmentioning

confidence: 99%

A Real-Time Gait Event Detection for Lower Limb Prosthesis Control and Evaluation

Maqbool

Husman

Awad

et al. 2017

IEEE Trans. Neural Syst. Rehabil. Eng.

103

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Abstract-Lower extremity amputees suffer from mobility limitations which will result in a degradation of their quality of life. Wearable sensors are frequently used to assess spatiotemporal, kinematic and kinetic parameters providing the means to establish an interactive control of the amputee-prosthesisenvironment system. Gait events and the gait phase detection of an amputee's locomotion are vital for controlling lower limb prosthetic devices. The paper presents an approach to real-time gait event detection for lower limb amputees using a wireless gyroscope attached to the shank when performing level ground and ramp activities. The results were validated using both healthy and amputee subjects and showed that the time differences in identifying Initial Contact (IC) and Toe Off (TO) events were larger in a transfemoral amputee when compared to the control subjects and a transtibial amputee (TTA). Overall, the time difference latency lies within a range of ± 50 ms while the detection rate was 100% for all activities. Based on the validated results, the IC and TO events can be accurately detected using the proposed system in both control subjects and amputees when performing activities of daily living and can also be utilized in the clinical setup for rehabilitation and assessing the performance of lower limb prosthesis users.

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“…However, the recent availability and growing number of validated, user-friendly portable gait analysis systems (22)(23)(24)(25)(26) allow simple quantitative gait measurements in older individuals, performed outside biomechanical gait laboratories in a more familiar environment with less technical equipment, lower costs, and less time required. Systematic quantification of gait in older inpatients during hospital stay may considerably enhance the quality of fall risk assessment by documenting obvious gait disorders and/or detecting subtle, specific fall-related gait changes, such as increased gait variability, particularly while dual-tasking.…”

Section: Introductionmentioning

confidence: 99%

Gait variability while dual-tasking: fall predictor in older inpatients?

et al. 2008

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Spatio-temporal parameters of gait measured by an ambulatory system using miniature gyroscopes

Cited by 720 publications

References 15 publications

Reliability and validity of the inertial sensor-based Timed “Up and Go” test in individuals affected by stroke

Reliability and validity of the inertial sensor-based Timed “Up and Go” test in individuals affected by stroke

A Real-Time Gait Event Detection for Lower Limb Prosthesis Control and Evaluation

Gait variability while dual-tasking: fall predictor in older inpatients?

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