Stabilizing postural control for emulated human balancing systems

Li, Ching-Lung; Lin, Chun-Liang; Chen, Ching-Kun

doi:10.1016/j.ijengsci.2008.04.009

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…36 The plate trajectory also need not be preprogrammed to impose motion on the user as in other devices. 23,24 In the interest of more actively involving the user in therapy, which has been considered essential for optimal recovery, 40 the plates may be driven by the force of the user on the plate to minimize external assistance and reward appropriate F production by the user. The open footplate design enhances patient access and enables system compatibility with technologies such as motion capture, immersive visual flow environments, metabolic metrics, bodyweight support, electromyography, FES, perturbation mechanisms, prostheses, and robotic exoskeletons.…”

Section: Kiince Prototype Designmentioning

confidence: 99%

“…The concept of neuroplasticity 52 is important when considering the utility of this approach in injured populations as well as those with impairment due to neural insult such as stroke, SCI, or TBI, where aspects of standing and walking recovery are often viewed as motor learning. 19,26,40,53,54 KIINCE relies on human's ability to modify and develop human motor control, [55][56][57] which persists after these neural insults (whether compensatory or true recovery of function). 54,58,59 KIINCE provides an environment for exploring the different context-appropriate feedback types such that the most effective modes can be refined and applied to rehabilitation.…”

Section: Neuromuscular Foundation Of Standing and Walking Rehabilitatmentioning

confidence: 99%

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Development of KIINCE: A kinetic feedback-based robotic environment for study of neuromuscular coordination and rehabilitation of human standing and walking

Boehm

Gruben

2018

Journal of Rehabilitation and Assistive Technologies Engineerin

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Introduction The objective of this article is to introduce the robotic platform KIINCE and its emphasis on the potential of kinetic objectives for studying and training human walking and standing. The device is motivated by the need to characterize and train lower limb muscle coordination to address balance deficits in impaired walking and standing. Methods The device measures the forces between the user and his or her environment, particularly the force of the ground on the feet ( F ) that reflects lower limb joint torque coordination. In an environment that allows for exploration of the user’s capabilities, various forms of real-time feedback guide neural training to produce F appropriate for remaining upright. Control of the foot plate motion is configurable and may be user driven or prescribed. Design choices are motivated from theory of motor control and learning as well as empirical observations of F during walking and standing. Results Preliminary studies of impaired individuals demonstrate the feasibility and potential utility of patient interaction with kinetic immersive interface for neuromuscular coordination enhancement. Conclusion Applications include study and rehabilitation of standing and walking after injury, amputation, and neurological insult, with an initial focus on stroke discussed here.

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Section: Kiince Prototype Designmentioning

confidence: 99%

Section: Neuromuscular Foundation Of Standing and Walking Rehabilitatmentioning

confidence: 99%

Development of KIINCE: A kinetic feedback-based robotic environment for study of neuromuscular coordination and rehabilitation of human standing and walking

Boehm

Gruben

2018

Journal of Rehabilitation and Assistive Technologies Engineerin

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“…Several studies have proposed control strategies to reduce the spatial illusion due to the vestibular system. Li et al [LLC08] and Lin et al [LHC10] maintained postural balance by computing control torques to compensate the destabilizing accelerations caused by the difference between the realistic and estimated gravity. Instead of compensating the instabilities caused by the estimated gravity, our motion sickness simulation employs the deviations resulting from the spatial illusions to generate visually evident pose variations.…”

Section: Related Workmentioning

confidence: 99%

“…Our purpose is to simulate motion sickness according to the spatial illusions made by the vestibular model. In contrast, the previous studies usually utilize a vestibular model to either enhance the orientation estimations [Tah09, MSF09, Pet09] or compensate the disturbance caused by the estimated gravity [LLC08, LHC10].…”

Section: System Overviewmentioning

confidence: 99%

Motion Sickness Simulation Based on Sensorimotor Control

Lin

2018

Computer Graphics Forum

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Sensorimotor control is an essential mechanism for human motions, from involuntary reflex actions to intentional motor skill learning, such as walking, jumping, and swimming. Humans perform various motions according to different task goals and physiological sensory perception; however, most existing computational approaches for motion simulation and generation rarely consider the effects of human perception. The assumption of perfect perception (i.e., no sensory errors) of existing approaches restricts the generated motion types and makes dynamical reactions less realistic. We propose a general framework for sensorimotor control, integrating a balance controller and a vestibular model, to generate perception‐aware motions. By exploiting simulated perception, more natural responses that are closer to human reactions can be generated. For example, motion sickness caused by the impairments in the function of the vestibular system induces postural instability and body sway. Our approach generates physically correct motions and reasonable reactions to external stimuli since the spatial orientation estimation by the vestibular system is essential to preserve balance. We evaluate our framework by demonstrating standing balance on a rotational platform with different angular speeds and duration. The generated motions show that either faster angular speeds or longer rotational duration cause more severe motion sickness. Our results demonstrate that sensorimotor control, integrating human perception and physically‐based control, offers considerable potential for providing more human‐like behaviors, especially for perceptual illusions of human beings, including visual, proprioceptive, and tactile sensations.

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“…7-meter throws are crucial in getting to a higher stage in a competition or winning a cup or championship. As the importance of 7-meter throws increased, the scientific approach to the phenomenon also intensified [1]. The Champions League 2015/2016 Championships, both women's handball and men's handball, were decided on the 7-meter throws after the matches ended in a draw in both the 60-minute and the halfextra-time.…”

Section: Introductionmentioning

confidence: 99%

Postural balance and 7-meter throw’s accuracy in handball

Gomboș

Gherman

Pătraşcu

et al. 2017

Timisoara Physical Education and Rehabilitation Journal

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This study aims to identify if there is a relation between postural balance and the accuracy of 7 meters throws in handball. There is an increase need to improve the success of the 7 meters throw, due to its impact regarding a win or loss over the past years during high-end competitions. Subjects: 173 subjects were involved in this study, 123 males and 50 females with the ages between 18 and 21 years old. Materials: We’ve conducted the balance test using the AMTI NETforce BP 400600 force platform and for the accuracy test we’ve conducted a shooting trial that quantified the spread of a series of throws from the 7 meters mark. We’ve observed the radial dislocation, area and length of the center of pressure for the balance test and for the shooting trial we’ve measured the distance of the throw from a preset spot. Results: There were no correlation between the important factors of balance like Dislocation, Area, Length, and throwing percentage for the Circle, Area 1, Area 2, Missed balls. Instead, between the 3 important factors of balance, there are strong and positive correlations, drawing the conclusion that when we have big numbers for center of gravity deviations, total trajectory (cm2) and the area values, the chances to score a goal from 7 meters are lower. Conclusions: The results of the study confirm the hypothesis. The objectives for a future study is to find ways/methods to improve the general balance, in order to increase the efficiency for the 7 meters throwing.

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Stabilizing postural control for emulated human balancing systems

Cited by 9 publications

References 9 publications

Development of KIINCE: A kinetic feedback-based robotic environment for study of neuromuscular coordination and rehabilitation of human standing and walking

Development of KIINCE: A kinetic feedback-based robotic environment for study of neuromuscular coordination and rehabilitation of human standing and walking

Motion Sickness Simulation Based on Sensorimotor Control

Postural balance and 7-meter throw’s accuracy in handball

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