2013, vol. 3, núm 2
http://hdl.handle.net/2099/14096
2024-03-29T06:24:18ZDuring gait with crutches
http://hdl.handle.net/2099/14105
During gait with crutches
Pérez-Rizo, Enrique; Solís-Mozos, Marta; Belda-Lois, Juan Manuel; Page, Álvaro; Taylor, Julian; Pons, Jose Luis; Gil-Agudo, Ángel
The goal of this study was to develop a three-dimensional kinematic and kinetic model of the right upper extremity and a Lofstrand crutch in order to analyze joint displacements and loads during crutch-assisted gait. A Lofstrand crutch was instrumented with a six-component load cell to measure forces and moments at the crutch tip. The crutch and the right upper extremity of a subject were instrumented with markers to obtain kinematic data. A biomechanical model based on rigid bodies was implemented in biomechanical analysis software. To demonstrate the functionality of the model, a pilot test was conducted on one healthy individual during Lofstrand crutch-assisted gait. The shoulder extended during the support phase and flexed in the swing phase, the elbow flexed during the swing, and the wrist remained in extension throughout the cycle. In the shoulder and elbow joints, the predominant reaction forces were upward, whereas the internal force moments were flexion and extension, respectively. This tool will be useful when it comes to identifying risk factors for joint pathology associated with pattern gait, aid design or crutch overuse.
2013-11-27T14:19:09ZPérez-Rizo, EnriqueSolís-Mozos, MartaBelda-Lois, Juan ManuelPage, ÁlvaroTaylor, JulianPons, Jose LuisGil-Agudo, ÁngelThe goal of this study was to develop a three-dimensional kinematic and kinetic model of the right upper extremity and a Lofstrand crutch in order to analyze joint displacements and loads during crutch-assisted gait. A Lofstrand crutch was instrumented with a six-component load cell to measure forces and moments at the crutch tip. The crutch and the right upper extremity of a subject were instrumented with markers to obtain kinematic data. A biomechanical model based on rigid bodies was implemented in biomechanical analysis software. To demonstrate the functionality of the model, a pilot test was conducted on one healthy individual during Lofstrand crutch-assisted gait. The shoulder extended during the support phase and flexed in the swing phase, the elbow flexed during the swing, and the wrist remained in extension throughout the cycle. In the shoulder and elbow joints, the predominant reaction forces were upward, whereas the internal force moments were flexion and extension, respectively. This tool will be useful when it comes to identifying risk factors for joint pathology associated with pattern gait, aid design or crutch overuse.A wireless user- computer interface to explore various sources of biosignals and visual biofeedback for severe motor impairment
http://hdl.handle.net/2099/14104
A wireless user- computer interface to explore various sources of biosignals and visual biofeedback for severe motor impairment
Londral, Ana; Silva, Hugo; Nunes, Neuza; Carvalho, Mamede; Azevedo, Luis
Severe speech and motor impairments caused by several neurological disorders can limit communication skills to simple yes/no replies. Variability among patients’ physical and social conditions justifies the need of providing multiple sources of signals to access to Augmentative and Alternative Communication (AAC) systems. Our study presents the development of a new user-computer interface that can be controlled by the detection of various sources of biosignals. Wireless sensors are placed on the body and users learn to enhance the control of detected signals by visual biofeedback, on a switch based control approach. Experimental results in four patients with just few residual movements showed that different sensors can be placed in different body locations and detect novel communication channels, according to each person’s physiological and social condition. Especially in progressive conditions, this system can be used by therapists to anticipate progression and assess new channels for communication.
2013-11-27T14:12:26ZLondral, AnaSilva, HugoNunes, NeuzaCarvalho, MamedeAzevedo, LuisSevere speech and motor impairments caused by several neurological disorders can limit communication skills to simple yes/no replies. Variability among patients’ physical and social conditions justifies the need of providing multiple sources of signals to access to Augmentative and Alternative Communication (AAC) systems. Our study presents the development of a new user-computer interface that can be controlled by the detection of various sources of biosignals. Wireless sensors are placed on the body and users learn to enhance the control of detected signals by visual biofeedback, on a switch based control approach. Experimental results in four patients with just few residual movements showed that different sensors can be placed in different body locations and detect novel communication channels, according to each person’s physiological and social condition. Especially in progressive conditions, this system can be used by therapists to anticipate progression and assess new channels for communication.A home-based neurorehabilitation system for children with upper extreimity impairments
http://hdl.handle.net/2099/14103
A home-based neurorehabilitation system for children with upper extreimity impairments
Wu, Yi-Ning; Saliu, Veton; Donoghue, Noah D.; Donoghue, John P.; Kerman, Karen L.
The objective of this paper is to introduce a novel low-cost human-computer interface (HCI) system for home-based massed practice for children with upper limb impairment due to brain injury. The proposed system targets motions around the wrist. Successful massed practice, a type of neurorehabilitation, may be of value for children with brain injury because it facilitates impaired limb use. Use of automated, home-based systems could provide a practical means for massed practice. However, the optimal strategy to deliver and monitor home-based massed practice is still unclear. We integrated a motion sensor, video games, and HCI software technologies to create a useful home-based massed practice at targeted joints. The system records joint angle and number of movements using a low-cost custom hand-held sensor. The sensor acts as an input device to play video games. We demonstrated the system’s functionality and provided preliminary observations on usage by children with brain injury and typically developing children, including joint motions and muscle activation.
2013-11-27T14:06:41ZWu, Yi-NingSaliu, VetonDonoghue, Noah D.Donoghue, John P.Kerman, Karen L.The objective of this paper is to introduce a novel low-cost human-computer interface (HCI) system for home-based massed practice for children with upper limb impairment due to brain injury. The proposed system targets motions around the wrist. Successful massed practice, a type of neurorehabilitation, may be of value for children with brain injury because it facilitates impaired limb use. Use of automated, home-based systems could provide a practical means for massed practice. However, the optimal strategy to deliver and monitor home-based massed practice is still unclear. We integrated a motion sensor, video games, and HCI software technologies to create a useful home-based massed practice at targeted joints. The system records joint angle and number of movements using a low-cost custom hand-held sensor. The sensor acts as an input device to play video games. We demonstrated the system’s functionality and provided preliminary observations on usage by children with brain injury and typically developing children, including joint motions and muscle activation.The effects of Nintendo Wii on the postural control of patients affected by acquiered brain injury: a pilot study
http://hdl.handle.net/2099/14099
The effects of Nintendo Wii on the postural control of patients affected by acquiered brain injury: a pilot study
Vicario Méndez, Ana
Abstract: Scientific literature demonstrates that postural control after suffering a brain injury can actually relate to its functional prognosis.
Postural control is a result of complex interactions of different body systems that co-operate in order to control the position of the body in the space and is determined by the functional task as well as by the environment in which it is developed. The use in rehabilitation of Nintendo's Wii® gives some results on motor functions.
Objective: Analyse the effects of the Nintendo Wii® console on postural control during the execution of an everyday life task consisting of getting up and walking three meters.
Range: Quasi-experimental study of a test-retest type. Not random sample of patients (n=12) affected by brain injury evaluated for the afore mentioned task with the Timed Get Up and Go Test (TGUG). Intervention and results on experimental group (n=6). Comparison of variables with respect to control group (n=6).
Results: Significant results have been obtained (p=0,007<0,05) at the TGUG of the experimental group.
2013-11-27T12:49:57ZVicario Méndez, AnaAbstract: Scientific literature demonstrates that postural control after suffering a brain injury can actually relate to its functional prognosis.
Postural control is a result of complex interactions of different body systems that co-operate in order to control the position of the body in the space and is determined by the functional task as well as by the environment in which it is developed. The use in rehabilitation of Nintendo's Wii® gives some results on motor functions.
Objective: Analyse the effects of the Nintendo Wii® console on postural control during the execution of an everyday life task consisting of getting up and walking three meters.
Range: Quasi-experimental study of a test-retest type. Not random sample of patients (n=12) affected by brain injury evaluated for the afore mentioned task with the Timed Get Up and Go Test (TGUG). Intervention and results on experimental group (n=6). Comparison of variables with respect to control group (n=6).
Results: Significant results have been obtained (p=0,007<0,05) at the TGUG of the experimental group.Assessment and training in home-baesd telerehabilitation ofr arm mobility impairment
http://hdl.handle.net/2099/14097
Assessment and training in home-baesd telerehabilitation ofr arm mobility impairment
Perry, Joel C.; Rodríguez-de-Pablo, Cristina; Balasubramanian, Sivakumar; Cavallaro, Francesca I.; Belloso, Aitor; Keller, Thierry
The aging population and limited healthcare capacities call for a change in how rehabilitation care is provided. There is a need to provide more autonomous and scalable care that can be more easily transferred out of the clinic and into home environments. One important barrier to this objective is achieving reliable assessment of motor performance using low-cost technology. Toward this end, an assessment framework and methodology is proposed. The framework uses 4 sequential games to measure aspects of range of motion, range of force, control of motion, and control of force. Parameters derived from the range of motion task are used to define motion requirements in all subsequent assessment games, while parameters derived from the range of force task are used to define subsequent lifting force requirements. A 12-week usability study was conducted in which 9 patients completed the clinical testing phase and 6 therapists and 7 patients completed the questionnaire. Feedback from the questionnaire shows the system is easy to use and integrates well in the clinical setting. The most commonly requested modifications were the inclusion of more games and the incorporation of hand training. Some initial position and force data are shown for one subject and discussion on implications for mobility assessment using the developed device are provided.
2013-11-27T12:33:46ZPerry, Joel C.Rodríguez-de-Pablo, CristinaBalasubramanian, SivakumarCavallaro, Francesca I.Belloso, AitorKeller, ThierryThe aging population and limited healthcare capacities call for a change in how rehabilitation care is provided. There is a need to provide more autonomous and scalable care that can be more easily transferred out of the clinic and into home environments. One important barrier to this objective is achieving reliable assessment of motor performance using low-cost technology. Toward this end, an assessment framework and methodology is proposed. The framework uses 4 sequential games to measure aspects of range of motion, range of force, control of motion, and control of force. Parameters derived from the range of motion task are used to define motion requirements in all subsequent assessment games, while parameters derived from the range of force task are used to define subsequent lifting force requirements. A 12-week usability study was conducted in which 9 patients completed the clinical testing phase and 6 therapists and 7 patients completed the questionnaire. Feedback from the questionnaire shows the system is easy to use and integrates well in the clinical setting. The most commonly requested modifications were the inclusion of more games and the incorporation of hand training. Some initial position and force data are shown for one subject and discussion on implications for mobility assessment using the developed device are provided.