2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
Wearable sensors are useful in the field of robotics, rehabilitation, biomechanics and medicine. ... more Wearable sensors are useful in the field of robotics, rehabilitation, biomechanics and medicine. In this work, we present a wearable measurement system equipped with a flexible, stretchable and tactile sensors array. The system contains four strain gauges connected to four separate Wheatstone bridges. The strain gauges were embedded into silicone Dragon skin to ensure the necessary properties of a stretchable sensor. We demonstrated the use of the developed wearable bio-instrument for detecting contractions of the subject's biceps muscle by tracking the angular motion of the elbow. The measurements showed good repeatability of the peak amplitude and demonstrated the possibility of detecting wirelessly the different angles of elbow flexion.
2018 International Conference on Applied Smart Systems (ICASS), 2018
The foot pressure measurement is important in gait and posture research for diagnosis of pressure... more The foot pressure measurement is important in gait and posture research for diagnosis of pressure of the feet for the athletes, back injuries, adaptation of insoles for orthopaedic applications and prevention of diabetic foot ulceration. There are several methods to measure the distribution of foot pressure. However, traditional systems have the disadvantage of being no flexible and thus influencing the measurement. In this work we present a low cost smart insole for diagnosis and prevention of plantar perforating disease in diabetic patients. The system consists of an instrumented insole that contains innovative sensors witch allow the quantification of plantar pressure at critical points that have a high risk of ulceration, it also contains a temperature / humidity sensors. A high rate of temperature and humidity allows faster formation of the ulcer, especially in the high friction points. All sensors for both feet communicate wirelessly and in real time with a mobile application ...
Les travaux de recherche presentes dans ce travail porte principalement sur la mise en œuvre des ... more Les travaux de recherche presentes dans ce travail porte principalement sur la mise en œuvre des techniques de conception et de realisation de capteurs et instruments pour la mesure des forces en 1D, 2D et en 3D pour des applications liees aux tests des performances sportives et a la therapie orthopedique. Ainsi, l’etude s’est focalisee sur la mise en œuvre de nouvelles structures mecaniques permettant d’optimiser la mesure de force d’appui, en particulier celle du pied et d’en tirer des informations en temps reel permettant de proceder a un suivie automatique pendant une seance de monitorage des membres inferieures. Dans cette optique, une premiere plate-forme de force a ete realisee pour une etude des performances sportives. Par la suite une autre plate-forme instable de type ‘FREEMAN’ a ete realisee pour l’etude de la stabilite du pied. Une autre etude a ete menee grâce a la realisation de structures tactiles pour la mesure des forces d’appuis du pied. En effet, a travers les res...
2018 International Conference on Applied Smart Systems (ICASS), 2018
The ankle contributes to postural control and people with visual and neuromuscular trauma have di... more The ankle contributes to postural control and people with visual and neuromuscular trauma have difficulty to maintaining their stability. This requires means resources of diagnosis and rehabilitation of ankle. In this paper, a wireless sensor system equipped with Force Sensing Resistors (FSR) is developed to measure plantar pressure during rehabilitation ankle. The wireless sensors proved its high accuracy and reliability for measuring high pressure distributions under the foot in real time. The sensed data are collected wirelessly to the base station (BS). This later displays in real time the data on a Graphical User Interface (GUI). Dynamic measurements in a real environment were made with the embedded instrument on a Freeman platform.
In this work a low cost electrical muscle stimulator (EMS) is designed and realized. This instrum... more In this work a low cost electrical muscle stimulator (EMS) is designed and realized. This instrument is dedicated to stimulate muscles and acquire the electromyography (EMG) response. Two electrical circuits are realized, the first based on a power stage delivering impulses for the electrical stimulation muscle, the second based on data acquisition system of the EMG signal to measure the response time between the excitation impulses. A graphical interface is developed to display information about the patient, the signal acquisition and the results of the diagnosis. Our application is focused to quantify the degree of muscular fatigue, for this, we chose one of the parameters that define a muscle shock which is the latency. The preliminary experiment is done on the biceps muscle, because the force developed by the motor unit is high. Keywords— EMS, EMG, Stimulation, Muscular fatigue
2018 IEEE/ACS 15th International Conference on Computer Systems and Applications (AICCSA)
Foot plantar pressure is the pressure field that acts between the foot and the support surface du... more Foot plantar pressure is the pressure field that acts between the foot and the support surface during every day locomotor activities. Information derived from pressure measures is important in gait and posture research for diagnosing lower limb problems, footwear design, sport biomechanics, injury prevention and other applications. In this work we present an instrumented insole for prevention of plantar perforating disease in diabetic patients. The system contains an insole pressure distribution sensor in critical point of high risk to prevent ulcers, and a temperature / humidity sensors. All sensors for both feet communicate wirelessly and in real time with a mobile application through Bluetooth.
2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013
ABSTRACT In this paper, the design and realization of a sensing device for recording dynamics cha... more ABSTRACT In this paper, the design and realization of a sensing device for recording dynamics characteristics of handwriting is developed. The device is realized with light materials for embedding forces and inertial sensors in small space. A microsystem based on cortex M3 processor is realized to perform data acquisition of the measured signals and to carry out the data via serial transmission to a Notebook for subsequent signal processing. First experimental results have shown the effectiveness of the proposed device for recording accelerations in 3D, angular velocities in pitch and roll, the pressure of index and thumb and the reaction force on a plane surface. For instance, subjects of different ethnic and different skill have been taken into account for handwriting behavior study.
The foot and ankle contribute significantly to postural control by providing a contact area to th... more 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 and experiment of ankle rehabilitation. The output signals from the plantar pressure and the EMG analog processor are feeding to a high resolution data acquisition system of National Instrument data acquisition card with PCI interfacing to a PC. A first experimental test has been carried out concerning the postural stability conducted by subjects with eyes open and closed. However, an analog circuit has been realized for recording the EMG signal of Soleus muscle during the experimentation test. The second experimental test has been carried out with the plantar pressure bonded onto a Freeman platform for ankle...
The extraction of the QRS waveform from the electrocardiogram (ECG) signal is an important part f... more The extraction of the QRS waveform from the electrocardiogram (ECG) signal is an important part for cardiac disease detection. Pan and Tompkins algorithm of QRS detection is an established method for extraction of this part of ECG. This paper proposes a real time implementation of this algorithm using new technology of low power and cost micro-controller. Index Terms—QRS detection, real time, hardware implemen-tation, Stellaris LM4F120H5Q.
Les travaux de recherche présentés dans ce travail porte principalement sur la mise en œuvre des ... more Les travaux de recherche présentés dans ce travail porte principalement sur la mise en œuvre des techniques de conception et de réalisation de capteurs et instruments pour la mesure des forces en 1D, 2D et en 3D pour des applications liées aux tests des performances sportives et à la thérapie orthopédique. Ainsi, l’étude s’est focalisée sur la mise en œuvre de nouvelles structures mécaniques permettant d’optimiser la mesure de force d’appui, en particulier celle du pied et d’en tirer des informations en temps réel permettant de procéder à un suivie automatique pendant une séance de monitorage des membres inférieures. Dans cette optique, une première plate-forme de force a été réalisée pour une étude des performances sportives. Par la suite une autre plate-forme instable de type ‘FREEMAN’ a été réalisée pour l’étude de la stabilité du pied. Une autre étude a été menée grâce à la réalisation de structures tactiles pour la mesure des forces d’appuis du pied. En effet, à travers les rés...
Foot plantar pressure is the pressure field that acts between the foot and the support surface du... more Foot plantar pressure is the pressure field that acts between the foot and the support surface during everyday loco-motor activities. Information derived from pressure measures is important in gait and posture research for diagnosing lower limb problems, footwear design, sport biomechanics, injury prevention and other applications. In this paper, a wireless sensor system equipped with Force Sensing Resistors (FSR) is developed to measure plantar pressure. The wireless sensors proved its high accuracy and reliability for measuring high pressure distributions under the foot in real time. The sensed data are collected wirelessly to the base station (BS). This later displays in real time the data on a Graphical User Interface (GUI). Index Terms—foot plantar pressure; pressure sensor; wireless system; MSP430.
In this work, a motorized prototype for ankle sprain rehabilitation is designed and realized. Onc... more In this work, a motorized prototype for ankle sprain rehabilitation is designed and realized. Once the mechanical system prototype is modelled and built four motors drives have been realized to permit the command in 3D. A Microsystems based on a microcontroller was realized for driving the whole instrumentation. A temporisation programme has been used to control the displacement of the actuator according to its speed and to the ankle articulation angle. First tests on some subjects have shown the feasibility of the instrument.
2013 8th International Workshop on Systems, Signal Processing and their Applications (WoSSPA), 2013
ABSTRACT In the present paper, we present the design of a USB-based data acquisition system to re... more ABSTRACT In the present paper, we present the design of a USB-based data acquisition system to record Electromyogram signal (EMG). Three gelled Silver/Silver chloride (Ag/AgCl) electrodes were set on the upper layer of the skin surface (stratum corneum) in all the conducted experiments. The raw signal which is a low level voltage (µV to mV), is processed and filtered by a low-power consumption amplifier. The analog signal was digitized by an AN2131QC microcontroller kit based on the 8051 industrial core. The data were instantly sent to a laptop through a USB link. Then, some processing tools were built around MATLAB software and were applied to the data for temporal and frequenciel representation of the corresponding electromyogram signal.
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007
In this paper, a transducer based instrument for fingertip touch force is developed. As a diagnos... more In this paper, a transducer based instrument for fingertip touch force is developed. As a diagnostic tool, the system was coupled with an EMG analog signal processor, which is considered as the main basis of evaluation for motor function impairment. A software program is developed to analyze EMG signal during fingertips effort to obtain valid characteristic parameters with spectral analysis. These parameters are associated with a low cost grip transducer based on Hall Effect component developed for the improvement of fingertip movement during holding objects or training exercises. Thus, the changes on each sensor signal can be detected and monitored with the software interface. The output signal and the EMG analog processor are feeding a high resolution data acquisition system of National Instrument. Preliminary experimental tests have been carried out for the fingertip force grasping according to the Adductor Pollicis muscle (AdP) for controlling the adductive motion of the thumb. The experimental results show that the changes of dynamic fingertip force affect the muscle.
Proceedings of the 4th International Conference on Wireless Mobile Communication and Healthcare - "Transforming healthcare through innovations in mobile and wireless technologies", 2014
ABSTRACT The diabetic foot present many complications if it is not supervised. Statistics shows t... more ABSTRACT The diabetic foot present many complications if it is not supervised. Statistics shows that 25% of diabetics that develop peripheral neuropathy will develop a foot ulcer and more than a half of them will become infected and 80 % require non-traumatic amputation which are performed yearly. This paper shows a daily instrumented shoe for the monitoring of diabetic foots to reduce the risk of ulcers and others complication dues to many effects of the shoe's environment. The system contains an insole pressure distribution sensor to monitor the pressure of critical point of high risk to prevent ulcers. Also, it contains temperatures sensors placed in critical contact points to give feedback of the friction rate, and a humidity sensor to give feedback of the sweating rate. Since the aim of the system is to be used daily by any diabetic person, the different sensors communicate wirelessly thought Bluetooth with an Android based phone application. In addition to a real-time sensor's data visualization, the application contains different alerts set according to medical preconization to give feedback such as the maximum time recommended to wear a shoe.
ABSTRACT The aim of this paper is to present an easy instrument and method for postural balance a... more ABSTRACT The aim of this paper is to present an easy instrument and method for postural balance analysis based on evaluation of instantaneous center of gravity (COG) were the subject is stand on innovative force platform. The instrument is realized with three identical composite sensor supporting a feet plate were used to measure the ground reaction force applied by subject during postural balance analysis. A Microsystems based on microcontroller was built in order to drive the instrumentation and a graphical user interface was realized. The signals acquisitions are displayed on the PC screen when the COG moves in the xy plan. After the calculation and programming of the COG coordinates point, the plot of the XG and YG time series of the COG position during a postural balance analysis is easily obtained and recording. The effect of visual input is studied by performing the test with eyes open and then closed. The dynamic parameters show clear indicator of the postural balance. Objective method of diagnosis is to access to postural stability for identifying persons at risk of falling.
2013 International Conference on Electronics, Computer and Computation (ICECCO), 2013
ABSTRACT In this work, two-degree-of-freedom (2DOF) platform for ankle sprain rehabilitation is d... more ABSTRACT In this work, two-degree-of-freedom (2DOF) platform for ankle sprain rehabilitation is designed and realized. These instrumented platforms were designed for clinical rehabilitation of the repetitive movement of ankle with changing direction. Four motors have been used for 2DOF motion control. A Microsystems based on microcontroller was realized for driving the whole instrumentation. For proper monitoring of the ankle rehabilitation, we found it useful to insert an accelerometer for measuring the angle of inclination; this measurement is taken from the measurement of static acceleration.
2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
Wearable sensors are useful in the field of robotics, rehabilitation, biomechanics and medicine. ... more Wearable sensors are useful in the field of robotics, rehabilitation, biomechanics and medicine. In this work, we present a wearable measurement system equipped with a flexible, stretchable and tactile sensors array. The system contains four strain gauges connected to four separate Wheatstone bridges. The strain gauges were embedded into silicone Dragon skin to ensure the necessary properties of a stretchable sensor. We demonstrated the use of the developed wearable bio-instrument for detecting contractions of the subject's biceps muscle by tracking the angular motion of the elbow. The measurements showed good repeatability of the peak amplitude and demonstrated the possibility of detecting wirelessly the different angles of elbow flexion.
2018 International Conference on Applied Smart Systems (ICASS), 2018
The foot pressure measurement is important in gait and posture research for diagnosis of pressure... more The foot pressure measurement is important in gait and posture research for diagnosis of pressure of the feet for the athletes, back injuries, adaptation of insoles for orthopaedic applications and prevention of diabetic foot ulceration. There are several methods to measure the distribution of foot pressure. However, traditional systems have the disadvantage of being no flexible and thus influencing the measurement. In this work we present a low cost smart insole for diagnosis and prevention of plantar perforating disease in diabetic patients. The system consists of an instrumented insole that contains innovative sensors witch allow the quantification of plantar pressure at critical points that have a high risk of ulceration, it also contains a temperature / humidity sensors. A high rate of temperature and humidity allows faster formation of the ulcer, especially in the high friction points. All sensors for both feet communicate wirelessly and in real time with a mobile application ...
Les travaux de recherche presentes dans ce travail porte principalement sur la mise en œuvre des ... more Les travaux de recherche presentes dans ce travail porte principalement sur la mise en œuvre des techniques de conception et de realisation de capteurs et instruments pour la mesure des forces en 1D, 2D et en 3D pour des applications liees aux tests des performances sportives et a la therapie orthopedique. Ainsi, l’etude s’est focalisee sur la mise en œuvre de nouvelles structures mecaniques permettant d’optimiser la mesure de force d’appui, en particulier celle du pied et d’en tirer des informations en temps reel permettant de proceder a un suivie automatique pendant une seance de monitorage des membres inferieures. Dans cette optique, une premiere plate-forme de force a ete realisee pour une etude des performances sportives. Par la suite une autre plate-forme instable de type ‘FREEMAN’ a ete realisee pour l’etude de la stabilite du pied. Une autre etude a ete menee grâce a la realisation de structures tactiles pour la mesure des forces d’appuis du pied. En effet, a travers les res...
2018 International Conference on Applied Smart Systems (ICASS), 2018
The ankle contributes to postural control and people with visual and neuromuscular trauma have di... more The ankle contributes to postural control and people with visual and neuromuscular trauma have difficulty to maintaining their stability. This requires means resources of diagnosis and rehabilitation of ankle. In this paper, a wireless sensor system equipped with Force Sensing Resistors (FSR) is developed to measure plantar pressure during rehabilitation ankle. The wireless sensors proved its high accuracy and reliability for measuring high pressure distributions under the foot in real time. The sensed data are collected wirelessly to the base station (BS). This later displays in real time the data on a Graphical User Interface (GUI). Dynamic measurements in a real environment were made with the embedded instrument on a Freeman platform.
In this work a low cost electrical muscle stimulator (EMS) is designed and realized. This instrum... more In this work a low cost electrical muscle stimulator (EMS) is designed and realized. This instrument is dedicated to stimulate muscles and acquire the electromyography (EMG) response. Two electrical circuits are realized, the first based on a power stage delivering impulses for the electrical stimulation muscle, the second based on data acquisition system of the EMG signal to measure the response time between the excitation impulses. A graphical interface is developed to display information about the patient, the signal acquisition and the results of the diagnosis. Our application is focused to quantify the degree of muscular fatigue, for this, we chose one of the parameters that define a muscle shock which is the latency. The preliminary experiment is done on the biceps muscle, because the force developed by the motor unit is high. Keywords— EMS, EMG, Stimulation, Muscular fatigue
2018 IEEE/ACS 15th International Conference on Computer Systems and Applications (AICCSA)
Foot plantar pressure is the pressure field that acts between the foot and the support surface du... more Foot plantar pressure is the pressure field that acts between the foot and the support surface during every day locomotor activities. Information derived from pressure measures is important in gait and posture research for diagnosing lower limb problems, footwear design, sport biomechanics, injury prevention and other applications. In this work we present an instrumented insole for prevention of plantar perforating disease in diabetic patients. The system contains an insole pressure distribution sensor in critical point of high risk to prevent ulcers, and a temperature / humidity sensors. All sensors for both feet communicate wirelessly and in real time with a mobile application through Bluetooth.
2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013
ABSTRACT In this paper, the design and realization of a sensing device for recording dynamics cha... more ABSTRACT In this paper, the design and realization of a sensing device for recording dynamics characteristics of handwriting is developed. The device is realized with light materials for embedding forces and inertial sensors in small space. A microsystem based on cortex M3 processor is realized to perform data acquisition of the measured signals and to carry out the data via serial transmission to a Notebook for subsequent signal processing. First experimental results have shown the effectiveness of the proposed device for recording accelerations in 3D, angular velocities in pitch and roll, the pressure of index and thumb and the reaction force on a plane surface. For instance, subjects of different ethnic and different skill have been taken into account for handwriting behavior study.
The foot and ankle contribute significantly to postural control by providing a contact area to th... more 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 and experiment of ankle rehabilitation. The output signals from the plantar pressure and the EMG analog processor are feeding to a high resolution data acquisition system of National Instrument data acquisition card with PCI interfacing to a PC. A first experimental test has been carried out concerning the postural stability conducted by subjects with eyes open and closed. However, an analog circuit has been realized for recording the EMG signal of Soleus muscle during the experimentation test. The second experimental test has been carried out with the plantar pressure bonded onto a Freeman platform for ankle...
The extraction of the QRS waveform from the electrocardiogram (ECG) signal is an important part f... more The extraction of the QRS waveform from the electrocardiogram (ECG) signal is an important part for cardiac disease detection. Pan and Tompkins algorithm of QRS detection is an established method for extraction of this part of ECG. This paper proposes a real time implementation of this algorithm using new technology of low power and cost micro-controller. Index Terms—QRS detection, real time, hardware implemen-tation, Stellaris LM4F120H5Q.
Les travaux de recherche présentés dans ce travail porte principalement sur la mise en œuvre des ... more Les travaux de recherche présentés dans ce travail porte principalement sur la mise en œuvre des techniques de conception et de réalisation de capteurs et instruments pour la mesure des forces en 1D, 2D et en 3D pour des applications liées aux tests des performances sportives et à la thérapie orthopédique. Ainsi, l’étude s’est focalisée sur la mise en œuvre de nouvelles structures mécaniques permettant d’optimiser la mesure de force d’appui, en particulier celle du pied et d’en tirer des informations en temps réel permettant de procéder à un suivie automatique pendant une séance de monitorage des membres inférieures. Dans cette optique, une première plate-forme de force a été réalisée pour une étude des performances sportives. Par la suite une autre plate-forme instable de type ‘FREEMAN’ a été réalisée pour l’étude de la stabilité du pied. Une autre étude a été menée grâce à la réalisation de structures tactiles pour la mesure des forces d’appuis du pied. En effet, à travers les rés...
Foot plantar pressure is the pressure field that acts between the foot and the support surface du... more Foot plantar pressure is the pressure field that acts between the foot and the support surface during everyday loco-motor activities. Information derived from pressure measures is important in gait and posture research for diagnosing lower limb problems, footwear design, sport biomechanics, injury prevention and other applications. In this paper, a wireless sensor system equipped with Force Sensing Resistors (FSR) is developed to measure plantar pressure. The wireless sensors proved its high accuracy and reliability for measuring high pressure distributions under the foot in real time. The sensed data are collected wirelessly to the base station (BS). This later displays in real time the data on a Graphical User Interface (GUI). Index Terms—foot plantar pressure; pressure sensor; wireless system; MSP430.
In this work, a motorized prototype for ankle sprain rehabilitation is designed and realized. Onc... more In this work, a motorized prototype for ankle sprain rehabilitation is designed and realized. Once the mechanical system prototype is modelled and built four motors drives have been realized to permit the command in 3D. A Microsystems based on a microcontroller was realized for driving the whole instrumentation. A temporisation programme has been used to control the displacement of the actuator according to its speed and to the ankle articulation angle. First tests on some subjects have shown the feasibility of the instrument.
2013 8th International Workshop on Systems, Signal Processing and their Applications (WoSSPA), 2013
ABSTRACT In the present paper, we present the design of a USB-based data acquisition system to re... more ABSTRACT In the present paper, we present the design of a USB-based data acquisition system to record Electromyogram signal (EMG). Three gelled Silver/Silver chloride (Ag/AgCl) electrodes were set on the upper layer of the skin surface (stratum corneum) in all the conducted experiments. The raw signal which is a low level voltage (µV to mV), is processed and filtered by a low-power consumption amplifier. The analog signal was digitized by an AN2131QC microcontroller kit based on the 8051 industrial core. The data were instantly sent to a laptop through a USB link. Then, some processing tools were built around MATLAB software and were applied to the data for temporal and frequenciel representation of the corresponding electromyogram signal.
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007
In this paper, a transducer based instrument for fingertip touch force is developed. As a diagnos... more In this paper, a transducer based instrument for fingertip touch force is developed. As a diagnostic tool, the system was coupled with an EMG analog signal processor, which is considered as the main basis of evaluation for motor function impairment. A software program is developed to analyze EMG signal during fingertips effort to obtain valid characteristic parameters with spectral analysis. These parameters are associated with a low cost grip transducer based on Hall Effect component developed for the improvement of fingertip movement during holding objects or training exercises. Thus, the changes on each sensor signal can be detected and monitored with the software interface. The output signal and the EMG analog processor are feeding a high resolution data acquisition system of National Instrument. Preliminary experimental tests have been carried out for the fingertip force grasping according to the Adductor Pollicis muscle (AdP) for controlling the adductive motion of the thumb. The experimental results show that the changes of dynamic fingertip force affect the muscle.
Proceedings of the 4th International Conference on Wireless Mobile Communication and Healthcare - "Transforming healthcare through innovations in mobile and wireless technologies", 2014
ABSTRACT The diabetic foot present many complications if it is not supervised. Statistics shows t... more ABSTRACT The diabetic foot present many complications if it is not supervised. Statistics shows that 25% of diabetics that develop peripheral neuropathy will develop a foot ulcer and more than a half of them will become infected and 80 % require non-traumatic amputation which are performed yearly. This paper shows a daily instrumented shoe for the monitoring of diabetic foots to reduce the risk of ulcers and others complication dues to many effects of the shoe's environment. The system contains an insole pressure distribution sensor to monitor the pressure of critical point of high risk to prevent ulcers. Also, it contains temperatures sensors placed in critical contact points to give feedback of the friction rate, and a humidity sensor to give feedback of the sweating rate. Since the aim of the system is to be used daily by any diabetic person, the different sensors communicate wirelessly thought Bluetooth with an Android based phone application. In addition to a real-time sensor's data visualization, the application contains different alerts set according to medical preconization to give feedback such as the maximum time recommended to wear a shoe.
ABSTRACT The aim of this paper is to present an easy instrument and method for postural balance a... more ABSTRACT The aim of this paper is to present an easy instrument and method for postural balance analysis based on evaluation of instantaneous center of gravity (COG) were the subject is stand on innovative force platform. The instrument is realized with three identical composite sensor supporting a feet plate were used to measure the ground reaction force applied by subject during postural balance analysis. A Microsystems based on microcontroller was built in order to drive the instrumentation and a graphical user interface was realized. The signals acquisitions are displayed on the PC screen when the COG moves in the xy plan. After the calculation and programming of the COG coordinates point, the plot of the XG and YG time series of the COG position during a postural balance analysis is easily obtained and recording. The effect of visual input is studied by performing the test with eyes open and then closed. The dynamic parameters show clear indicator of the postural balance. Objective method of diagnosis is to access to postural stability for identifying persons at risk of falling.
2013 International Conference on Electronics, Computer and Computation (ICECCO), 2013
ABSTRACT In this work, two-degree-of-freedom (2DOF) platform for ankle sprain rehabilitation is d... more ABSTRACT In this work, two-degree-of-freedom (2DOF) platform for ankle sprain rehabilitation is designed and realized. These instrumented platforms were designed for clinical rehabilitation of the repetitive movement of ankle with changing direction. Four motors have been used for 2DOF motion control. A Microsystems based on microcontroller was realized for driving the whole instrumentation. For proper monitoring of the ankle rehabilitation, we found it useful to insert an accelerometer for measuring the angle of inclination; this measurement is taken from the measurement of static acceleration.
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