Can an accelerometer enhance the utility of the Timed Up &amp; Go Test when evaluating patients with Parkinson's disease?

Weiss, Aner; Herman, Talia; Plotnik, Meir; Brozgol, Marina; Maidan, Inbal; Giladi, Nir; Gurevich, Tanya; Hausdorff, Jeffrey M.

doi:10.1016/j.medengphy.2009.10.015

Cited by 198 publications

(160 citation statements)

References 16 publications

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“…A single IS, worn on the lower back, has successfully been used for analyzing sub-phases and trunk kinematics during chair rise (Giansanti and Maccioni, 2006;Millor et al, 2013;Schwenk et al, 2012;Van Lummel et al, 2012;Van Lummel et al, 2013;Weiss et al, 2011Weiss et al, , 2010 and have been validated against other instrumentation for the sit-to-stand task (Boonstra et al, 2006;Janssen et al, 2008;Zijlstra et al, 2012). But Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/jbiomech www.JBiomech.com the validity of using an IS during the biomechanically challenging sit-to-walk (STW) task, which is common in daily life, has not yet been investigated (Kouta and Shinkoda, 2008).…”

Section: Introductionmentioning

confidence: 99%

The validity of assessing temporal events, sub-phases and trunk kinematics of the sit-to-walk movement in older adults using a single inertial sensor

Walgaard¹,

Faber

Lummel³

et al. 2016

Journal of Biomechanics

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a b s t r a c tThe aim of this study was to develop a method to identify temporal events, sub-phases and trunk kinematics of the sit-to-walk (STW) using a single inertial sensor (IS) worn at the lower back and to determine the validity of this method. Twenty-seven healthy older adults performed a STW movement, which started from sitting in a chair and included walking 3 m.Participants' movements were recorded with the IS, a reference measurement system consisting of an optical motion capture system (3 markers on the IS and one on each foot) and on-off switches located in the seat of the chair.Using the data from the IS and the reference measurement systems, the following signals and variables were calculated and compared: 3D IS motion (accelerations, velocities, displacements and angles), temporal events (start of trunk movement, seat-off, end of trunk flexion phase, end of trunk rising phase and gait initiation) and trunk kinematics (flexion range, maximum flexion velocity, maximum forward velocity and forward velocity during seat-off and at first heel-strike and maximum vertical velocity and vertical velocity at first heel-strike).For most variables acceptable differences (RMSE o 10%) were found between IS and reference measurement systems, except for sideways displacements and non-sagittal plane rotations. Furthermore, good results were found for temporal event detection, with ICC values for all variables being 0.988 or higher. With exception of the vertical velocity at heel-strike agreement for trunk kinematics was high, with ICC values being 0.867 or higher.

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Section: Introductionmentioning

confidence: 99%

The validity of assessing temporal events, sub-phases and trunk kinematics of the sit-to-walk movement in older adults using a single inertial sensor

Walgaard¹,

Faber

Lummel³

et al. 2016

Journal of Biomechanics

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“…Reference [12] and [14] have proposed instrumented versions of the timed up-and-go test for identifying gait impairments due to PD (Parkinson's disease). They have shown that instrumented tests lead to an improved sensitivity to gait impairments compared to observation methods.…”

Section: Related Workmentioning

confidence: 99%

Microcontroller-Based Remote Temperature Monitoring System

Jimmoh¹,

Adedayo²,

Enemakwu³

et al. 2016

IOSR

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“…These studies examined the usual gait parameters such as used time [42], gait speed, stride length, cadence, double-limb support duration during the turning [43]. Other methods assess accelerometer-derived parameters [44], [26] and gyroscope-derived parameters [45]. Our objective is to find new quality index during turning phase by using the walker instrumented with an accelerometer/gyrometer, which may help doctors to evaluate the fall risk of the elderly.…”

Section: Gait Analysis Of An Inverted L-shaped Trajectory Testmentioning

confidence: 99%

A New Application of Smart Walker for Quantitative Analysis of Human Walking

Wang

Dune

Merlet

et al. 2015

Computer Vision - ECCV 2014 Workshops

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Abstract. This paper presents a new nonintrusive device for everyday gait analysis and health monitoring. The system is a standard rollator equipped with encoders and inertial sensors. The assisted walking of 25 healthy elderly and 23 young adults are compared to develop walking quality index. The subjects were asked to walk on a straight trajectory and an L-shaped trajectory respectively. The walking trajectory, which is missing in other gait analysis methods, is calculated based on the encoder data. The obtained trajectory and steps are compared with the results of a motion capture system. The gait analysis results show that new index obtained by using the walker measurements, and not available otherwise, are very discriminating, e.g., the elderly have larger lateral motion and maneuver area, smaller angular velocity during turning, their walking accuracy is lower and turning ability is weaker although they have almost the same walking velocity as the young people.

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Can an accelerometer enhance the utility of the Timed Up & Go Test when evaluating patients with Parkinson's disease?

Cited by 198 publications

References 16 publications

The validity of assessing temporal events, sub-phases and trunk kinematics of the sit-to-walk movement in older adults using a single inertial sensor

The validity of assessing temporal events, sub-phases and trunk kinematics of the sit-to-walk movement in older adults using a single inertial sensor

Microcontroller-Based Remote Temperature Monitoring System

A New Application of Smart Walker for Quantitative Analysis of Human Walking

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