The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The tonic postural system guarantees the stability of the human body in upright stance and during locomotion. It is considered as a complex organization which involves several internal systems and has multiple sources of information. In this paper, we provide a review of techniques and materials for human stability assessment. The primary tools to record and evaluate human sways in static posture...
Human gait can be detected by plantar pressure. Previous wireless portable systems were not able to collect and analyze the plantar pressure from both feet simultaneously. In this study, the multi-connection capability of CC2650 Bluetooth low energy (BLE) chip from Texas Instruments was utilized to construct the pressure sensor insoles system. A smart phone application was implemented to receive,...
Balance checking is the method used to measure plantar pressure distribution in two ways, static and dynamic. In static mode, the patient is asked to stand still on the platform with optical sensors for ten seconds. The results show that the centroids of the feet of those who are capable of keeping good balance hardly disperse compare to those who are not. In dynamic mode, the patient keeps on stepping...
The aim of this investigation is to design and construct a demonstrative prototype of a low cost foot planter-pressure scanner that can assess health care providers in diagnosing and monitoring patients who are suffering from foot disorders. The prototype will be designed from a matrix of force sensitive sensors that measure the spread of forces on the plantar surface of the foot. Suitable Graphical...
In the previous studies, contradictory results were reported on walking symmetry. The walking symmetry is important in the study of the evolution of bipedalism and gait therapy. This study investigated the effects of laterality and walking speed on gait symmetry during three conditions of walking on a treadmill, namely pushing while walking, walking with arm-swing, and walking while holding on a handlebar...
This paper portrays the comparison of inability of human limb in subjective way. Data is obtained for both the affected and unaffected leg of three hemiplegic patients. Foot plantar weight may be characterized as the weight field made by the middle of the foot and surface throughout ordinary exercises which depicts the disability of the man. A foot weight cushion is used to get constant foot weight...
The quantitative assessment of the postural stability is allowed by means of the use of pressure or force plates which are able to record a CoP subject's trajectory during a quite standing. However, the pressure or force plates are commonly used in a clinical environment, due to their very complexity and expensiveness. So their applicability outside laboratories is extremely limited. New e-textile...
Exposure to microgravity causes a head-ward fluid shift that current spaceflight countermeasures fail to fully ameliorate. Artificial gravity (AG) through short-arm human centrifugation (SAHC) has been proposed as a possible countermeasure. Whilst the responses to increasing g-levels have been well characterized, the effects of a shift in rotational axis position (RAP), independent of g-level (at...
In developing countries, patients with disabilities are often deprived of getting treated at rehabilitation centres with modern equipments and technologies. In India as per the 2011 census about 2.21% of the population suffer with disabilities due to either visual, auditory, speech or locomotor dysfunctions. Locomotor disability is seen predominantly in about 20.27% of patients amongst the various...
The goal of our work was to develop a treatment system for restoring proprioception in patients experiencing low back pain and those who experience falls. For this purpose, we investigated postural sway during local vibratory stimulation in elderly people in the standing position by using our newly developed variable frequency vibratory stimulation device and a gravicorder. Vibratory stimulations...
An important aspect of gait analysis is the measurement and interpretation of the Ground Reaction Force (GRF) characteristics. These measurements are important for the calculation and analysis of joint moments and forces, in addition to its assistance in natural and artificial walk control. Usually, a force platform, requiring a large space, is used to obtain these measurements but only few steps...
Proprioception of lower extremity plays an important role in detecting changes of foot orientation, pain, and temperature perception. The loss of foot sensation may result increased of difficulty in our daily activities, and affected quality of life. This study aimed to investigate the association between postural stability and foot vibration sensation. Ten transtibial amputees participated in this...
Numerous static measurement methods have been developed to aid with the clinical evaluation of the dynamic foot posture. Although some of these methods provided high measurement reliability and validity, there is limited research correlating the static measurements with the dynamic foot measurements during activities such as gait. To explore whether the Foot Mobility Magnitude (FMM) can be used to...
Current clinical foot posture assessment techniques rely on anthropometric measures of landmarks on the foot which can derive information regarding foot posture and foot problems. It has been identified that there is a source of error in these anthropometric measurements as a result of subjects having to maintain their weight bearing while balancing their examined foot on scales for the entire duration...
Lower limb motor function is important for activities of daily living. Since gait movements of elderly subjects differ from those of young people, gait measurement is considered to be effective for evaluating lower limb motor function. In this paper, focusing on foot movements during gait, a method of evaluating 3-dimentional movements of the foot during walking was examined. Gait movements were measured...
The foot and ankle contribute significantly to postural control by providing a contact area to the support surface. Persons with visual and neuromuscular disorders have deficits in response to perturbations of balance and often require assistive devices. This work investigated to posture analysis by using plantar pressure measurements coupled with an EMG analog signal processor. The output signals...
In order to implement an unobstructed assessment of walking gait, we proposed a mobile force plate and three-dimensional motion analysis system (M3D) to measure triaxial ground reaction forces (GRF) and three-dimensional orientations of feet. To test accuracy of the new measurement system, verification experiments by using reference measurements of a commercially available measurement system were...
People with motor impairments often need adaptation of input devices to interact with surrounding people and home-appliances via communication aids and environmental control systems. During the adaptation, a body part to be used, a device to be activated, its specific location, and a posture to use it should be decided by assessing accuracy and speed of motions. Additionally, the strength and frequency...
This paper presents a walking-monitoring-shoe (WMS) system capable of simultaneous performing accurate plantar-force measurement and reliable gait-phase detection for continuous monitoring of human walking on treadmill. Based on anatomical information, the WMS employs four strain-gauges embedded in a homemade sole to accurately measure the contact force of the human foot exerted on the shoe-pad, and...
In clinical applications, the quantitative analysis of gait variability using kinematic and kinetic characterizations can be helpful to medical doctors in monitoring patient recovery status. A high-speed camera system and a stationary force plate can only accurately measure complete ground reaction force (GRF) and body orientations during a few steps, but data on successive gait measurements including...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.