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Two methods of control for a prosthetic hand are presented. A fairly typical force feedback controller is compared to a novel biomimetic application of sliding mode control. The two controllers are evaluated analytically and subjectively by six human test subjects. The analytical experiments show that the human operators, on average, were more capable of effectively using the prosthetic hand with...
This paper proposes an estimation method of product usability using a musculoskeletal model. The aim of this study is to estimate product usability based on tendon forces during an object manipulation. First, we explain the estimation method of product usability. The product usability is estimated quantitatively from the tendon forces. The mulculoskeletal model of the index finger and the thumb is...
The development of a biomechatronic hand with multi-FSRs (Force Sensitive Resistor) interface is presented. The cambered palm is specially designed to enhance the stability while grasping. The opposite thumb could grasp along a cone surface, while maintaining its function. By taken the advantage of coupling linkage mechanism, each finger with three phalanges could fulfill flexion and extension independently...
Urinary Incontinence significantly affects the quality of life of 13 Million adults in America [1]. The current diagnosis methods are often uncomfortable and inconclusive, providing motivation for researchers to create a better diagnostic system. This work focuses on developing an alternative method for Cystometry, a Urodynamic test which collects pressure data. The design proposed in this paper is...
A master-slave system has been used to operate a robot. This system is necessary to communicate human intentions to the robot. In this context, we focus on Myo-Electric (ME) potential. In many previous studies, a motor is used as an actuator, and the torque and position are estimated from the ME potential. However joint stiffness, which humans can change, is not considered. It is possible to solve...
This paper investigates solutions to improvement of realistic rendering quality of CG (Computer Graphics) character face. In order to manipulate face skin feature distribution, based on bio-anatomic structure, skin surface is classified into 3 layers (Internal, Regular and Local layer) to control skin base color, surface cellular venation level and noise distribution like freckle, respectively. Moreover,...
A new method is reported for human muscle force modeling based on the fuzzy theory. First, a Hill-based muscle force model was built. The muscle activation parameters were ascertained by fuzzy inferential algorithm as the input of the Hill-based muscle force. Then, a weightlifting motor task was implemented. Four channels of electromyography signals and twelve virtual markers motion data were collected...
This paper presents a new human-machine interaction (HMI) method designed for hands-free control of electric wheelchairs. Both forehead electromyography (EMG) signals and color face image information is jointly used to identify winking and jaw clenching movements. Five winking and jaw clenching movement patterns are selected and classified, mapping into five control commands to drive a simulated wheelchair...
A wireless body area network (WBAN) is a network, consisting of nodes that communicate wirelessly and are located on or in the body of a person. In this paper, the authors study the wave propagation using biocompatible folded slot dipole antennas within various lossy human tissues such as the muscle tissue, skin and the fat layer and obtain their path loss (PL) and specific absorption rate (SAR) by...
Physics-based approach for character animation has advantages in interactive AR applications in that the approach can create realistic character motions that are responsive to non-predefined environment and user inputs. In this paper, we introduce two subjects on physics-based character animation. Biomechanical modeling of human characters is an effort to create more human-like motions than conventional...
A difference between the human and robots from the viewpoint of motor control is a sampling time in everyday movements. That is, the sampling time for controlling conventional robot systems is required to become approximately 1 ms. On the other hand, the motor control based on human nervous system permits considerably large time-delay due to the transmission latency on afferent/efferent pathways of...
Music electrotherapy is on the basis of electro-acupuncture, which combined music, electrode with electro-acupuncture. This method draws on the characteristics of both electrotherapy and music therapy music. Music electrotherapy through music and music signals acting on the hearing and body, increase or improve the person's psychological, physiological conditions, so as to achieve health, disease...
Myogenesis in skeletal muscle is a cascade of developmental events, whose initiation involves the MRFs family of the myogenic regulatory factors. Comparing the characterization of MRFs family members and their deduced proteins is necessary to know the reasons of their different role in muscle development. In order to investigate the reasons why MRFs members have different roles in duck myogenesis,...
Human foot is a complex musculoskeletal system. As it is impossible to directly measure the force of muscle attaching with limbs, a new quantitative method for dynamics analysis of human ankle muscle forces is presented by using the AnyBody Modeling System and a developed wearable motion and ground reaction force (GRF) sensor system. The sensor system can be used to continuously measure human motion...
Research on steering feel is an important subject in steering system design and vehicle handling and stability. The element of the driver, i.e. human factors, can't be neglected in the research of steering feel. Taking human factors into consideration, the approaches to kinesiology were applied to the research on physiological functions in driver's steering operation. Relevant measurement of driver's...
This paper presents the development of low cost physiotherapy monitor system. Generally, muscle will generate a signal while it is activated. For ease of study, the system will be design based on one selected muscle. The design of the low cost monitoring system has two channel input and a small size base platform. Simple EMG signal is output from the low cost platform and sent into computer. The signal...
Interaction of a robot with dynamic environments would require continuous adaptation of force and impedance, which is generally not available in current robot systems. In contrast, humans learn novel task dynamics with appropriate force and impedance through the concurrent minimization of error and energy, and exhibit the ability to modify movement trajectory to comply with obstacles and minimize...
Duchenne muscular dystrophy (DMD) is a recessive X-linked form of muscular dystrophy and one of the most prevalent genetic disorders of childhood. DMD is characterized by rapid progression of muscle degeneration, and ultimately death. Currently, glucocorticoids are the only available treatment for DMD, but they have been shown to result in serious side effects. The purpose of this research was to...
Human motion coordination is a long-standing research issue in biomechanics, and it should also have some implications for humanoid robot control.We have built a whole-body somatosensory reflex model based on our neuromusculoskeletal model and identified its parameters through non-invasive measurements and statistical analysis. Such models are crucial for analyzing and estimating signals in the nervous...
Epilepsy is caused by sudden flurries of electrochemical activity in the brain, which interrupt the 'conversation' among neurons. Consciousness, memory, sense, speech, mood, movement, and motions can all be affected during the one or two minutes that the seizure lasts. Walking, jogging, running and stationary bicycling are particularly safe, but especially "Prayer type yoga exercise" clearly...
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