background & importance: idiopathic stenosis of the foramina of magendie and luschka is a rare cause of obstructive hydrocephalus involving the fourth ventricle. case presentation: we reported the case of a 40-year-old woman who developed headaches and vertigo for several months and more recently gait disturbance. the ct scan showed quadri-ventricular hydrocephalus involving mainly the fourth v...

This paper presents a real time force sensing instrument that is designed for human gait analysis purposes. It is capable of recording and monitoring ground reaction forces exerted by human foot during various activities such as walking, running and jumping in real time. In overall, force sensing mat mainly consists of three elements: the force sensing mat, signal conditioning circuit and data ...

The objective of this study was to compare the gait variability of patients with isolated anterior cruciate ligament (ACL) deficiency (experimental group) with that of healthy individuals (control group). The hypothesis was that the gait variability of the experimental group would be higher than the control group. The experimental group consisted of 20 men with an ACL tear and the control group...

In this paper, we analyze the micro-Doppler signatures of elderly gait patterns in the presence of walking aids using radars. The signatures are based on real data experiments conducted in a laboratory environment using human subjects walking with a walking cane and a walker. Short-time Fourier transform is used to provide the local signal behavior over frequency and to detail the changes in th...

Machine learning methods have been widely used for gait assessment through the estimation of spatio-temporal parameters. As a further step, the objective of this work is to propose and validate a general probabilistic modeling approach for the classification of different pathological gaits. Specifically, the presented methodology was tested on gait data recorded on two pathological populations ...

Estimation of walking behavior such as gait pattern, speed and distance of walking, is discussed in this paper. In gait rehabilitation, measurement of the temporal and spatial parameters during gait is of critical importance for monitoring functional recovery. The 3-axis accelerometer on the waist belt is used to detect acceleration of body movement. From the filtered signal, we can estimate in...

OBJECTIVE We investigated the concurrent validity and test-retest reliability of spatio-temporal gait parameters measured with a single tri-axial accelerometer (TAA), determined the optimal number of steps required for obtaining acceptable levels of reliability, and compared the validity and reliability of the estimated gait parameters across the three reference axes of the TAA. METHODS A tot...

Human walking is a complicated motion. Movement scientists have developed various research methods to study gait. This paper describes how a high school student collected and analyzed high quality gait data in much the same way movement scientists do via recording and measurement of motions with a video analysis tool and via electromyography, i.e., measurement of muscle activity. Physics, biolo...

The problem of joint classification gait and device mode from inertial measurement units (IMU) measurements is considered. For this, an approach for computing unique signature using collected body-worn (IMUs) proposed.The represents one full cycle the human gait, suitable off-line or on-line mode. can also be used to jointly classify identifies how IMU-equipped being carried by user. method bas...

BACKGROUND The human face and body are rich sources of socio-emotional cues. Accurate recognition of these cues is central to adaptive social functioning. Past studies indicate that individuals with schizophrenia (SZ) show deficits in the perception of emotion from facial cues but the contribution of bodily cues to social perception in schizophrenia is undetermined. The present study examined t...