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Human gait is cyclic process, which is affected by various neurological disorders like Parkinson's disease (PD) or multiple sclerosis (MS). Instrumented gait analysis facilitate monitoring and diagnosing motor deficiencies; it may serve as a tool for clinicians evaluating the patients. This study aims at finding biomechanical parameters that allow separating pathological gaits via application of inertial...
Gait analysis is considered as an important process which has been wildly adopted in many clinical applications to identify and quantify the lower body functioning impairment of hémiplégie patients. On contrary to the traditional measures which were based on manual observation, numerous researches in recent years have been carried out on utilizing modern assistive devices to analyze gait pattern and...
A prototype for a walking assistance apparatus for the elderly or motor palsy patients was developed, using a novel spatial parallel link mechanism. The flat steps of the apparatus move in parallel with the ground; the apparatus can support entire leg alignment (including soles) and assist; walking behavior at ankle, knee and hip joints simultaneously. By using a flexible link, constructed of stainless...
This study attempts to use two on-off switch sensors on feet and three tri-axis accelerometers, two in thigh and one in waist, to measure the hip angles and estimate the knee angles for a complete human gait signal acquisition. The human gait parameters like cadence, step length and walking speed are computed based on these information. For reduction of sensors for practical purpose, we focus on dynamic...
The concept of fuzzy logic was applied to develop a gait phase detection algorithm, to address the complexity of distinguishing between gait phases based on gait parameters obtained for walking. The proposed intelligent algorithm detects seven gait phases taking into consideration only joint parameters. Three inertial sensors were placed at the thigh, shank and foot in order to acquire hip, knee and...
The pelvis plays an important balance role during the human walking upright. The paper illustrates a new method of measuring the pelvis four-freedom trajectories. Three transitional movements in medial -lateral, fore-after and up-down directions and one rotary movement around vertical axis are measured. This method is analyzed in theory. The experimental platform is developed, which is based on a...
Gait analysis is important element in therapy and rehabilitation of hemiplegic individuals. We developed a simple, portable sensor system, which can be used for recording of gait signals, as well as for estimation of important gait parameters like joint angles, ground reaction forces, and various temporal parameters. In order to assess robustness of the system in everyday use in different environmental...
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