Abstract:
BACKGROUND:The overall goal of this paper was to investigate approaches to controlling active participation in stroke patients during robot-assisted gait therapy. Although active physical participation during gait rehabilitation after stroke was shown to improve therapy outcome, some patients can behave passively during rehabilitation, not maximally benefiting from the gait training. Up to now, there has not been an effective method for forcing patient activity to the desired level that would most benefit stroke patients with a broad variety of cognitive and biomechanical impairments. METHODS:Patient activity was quantified in two ways: by heart rate (HR), a physiological parameter that reflected physical effort during body weight supported treadmill training, and by a weighted sum of the interaction torques (WIT) between robot and patient, recorded from hip and knee joints of both legs. We recorded data in three experiments, each with five stroke patients, and controlled HR and WIT to a desired temporal profile. Depending on the patient's cognitive capabilities, two different approaches were taken: either by allowing voluntary patient effort via visual instructions or by forcing the patient to vary physical effort by adapting the treadmill speed. RESULTS:We successfully controlled patient activity quantified by WIT and by HR to a desired level. The setup was thereby individually adaptable to the specific cognitive and biomechanical needs of each patient. CONCLUSION:Based on the three successful approaches to controlling patient participation, we propose a metric which enables clinicians to select the best strategy for each patient, according to the patient's physical and cognitive capabilities. Our framework will enable therapists to challenge the patient to more activity by automatically controlling the patient effort to a desired level. We expect that the increase in activity will lead to improved rehabilitation outcome.
journal_name
J Neuroeng Rehabiljournal_title
Journal of neuroengineering and rehabilitationauthors
Koenig A,Omlin X,Bergmann J,Zimmerli L,Bolliger M,Müller F,Riener Rdoi
10.1186/1743-0003-8-14subject
Has Abstractpub_date
2011-03-23 00:00:00pages
14issn
1743-0003pii
1743-0003-8-14journal_volume
8pub_type
杂志文章abstract:BACKGROUND:After a limb is lost a prosthesis can restore function. For maximum utility, prosthetic limbs should accept movement commands and provide force and motion feedback, which can be conveyed with vibrotactile feedback (VIBF). While prior studies have shown that force-based VIBF benefits control, the merits of mo...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-015-0025-5
更新日期:2015-03-24 00:00:00
abstract::BACKGROUND: In investigations of the human motor system, two approaches are generally employed toward the identification of common modulating drives from motor unit recordings. One is a frequency domain method and uses the coherence function to determine the degree of linear correlation between each frequency componen...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-1-2
更新日期:2004-10-14 00:00:00
abstract:BACKGROUND:For high usability, myo-controlled devices require robust classification schemes during dynamic contractions. Therefore, this study investigates the impact of the training data set in the performance of several pattern recognition algorithms during dynamic contractions. METHODS:A 9 class experiment was desi...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-8-25
更新日期:2011-05-09 00:00:00
abstract:BACKGROUND:Previous studies demonstrated that stroke survivors have a limited capacity to increase their walking speeds beyond their self-selected maximum walking speed (SMWS). The purpose of this study was to determine the capacity of stroke survivors to reach faster speeds than their SMWS while walking on a treadmill...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-9-80
更新日期:2012-10-11 00:00:00
abstract:BACKGROUND:The evaluation of hand function impairment following a neurological disorder (stroke and cervical spinal cord injury) requires sensitive, reliable and clinically meaningful assessment tools. Clinical performance measures of hand function mainly focus on the accomplishment of activities of daily living (ADL),...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-9-2
更新日期:2012-01-17 00:00:00
abstract:BACKGROUND:Uneven ground is a frequently encountered, yet little-studied challenge for individuals with amputation. The absence of control at the prosthetic ankle to facilitate correction for surface inconsistencies, and diminished sensory input from the extremity, add unpredictability to an already complex control pro...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-019-0497-9
更新日期:2019-02-04 00:00:00
abstract:BACKGROUND:Myoelectric control of upper extremity powered prostheses has been used clinically for many years, however this approach has not been fully developed for lower extremity prosthetic devices. With the advent of powered lower extremity prosthetic components, the potential role of myoelectric control systems is ...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-9-29
更新日期:2012-05-28 00:00:00
abstract:BACKGROUND:While upper-extremity movement in individuals with neurological disorders such as stroke and spinal cord injury (SCI) has been studied for many years, the effects of spasticity on arm movement have been poorly quantified. The present study is designed to characterize the nature of impaired arm movements asso...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-4-45
更新日期:2007-11-29 00:00:00
abstract:BACKGROUND:Activities of daily living frequently require children to make rapid decisions and execute desired motor actions while inhibiting unwanted actions. Children with hemiparetic cerebral palsy due to perinatal stroke may have deficits in executive functioning in addition to motor impairments. The objective of th...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-020-00714-1
更新日期:2020-07-14 00:00:00
abstract:BACKGROUND:Although test-retest reliability of mean values of spatio-temporal gait parameters has been assessed for reliability while walking alone (i.e., single tasking), little is known about the test-retest reliability of stride time variability (STV) while performing an attention demanding-task (i.e., dual tasking)...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-8-37
更新日期:2011-07-11 00:00:00
abstract:BACKGROUND:Locomotor strategies for obstacle circumvention require appropriate postural coordination that depends on sensorimotor integration within the central nervous system. It is not known how these strategies are affected by a stroke. The objective of this study was to contrast postural coordination strategies use...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-017-0265-7
更新日期:2017-06-15 00:00:00
abstract:BACKGROUND:Understanding how prostheses are used in everyday life is central to the design, provision and evaluation of prosthetic devices and associated services. This paper reviews the scientific literature on methodologies and technologies that have been used to assess the daily use of both upper- and lower-limb pro...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-020-00711-4
更新日期:2020-07-14 00:00:00
abstract:BACKGROUND:Following an amputation, the human postural control system develops neuromuscular adaptations to regain an effective postural control. We investigated the compensatory mechanisms behind these adaptations and how sensorimotor integration is affected after a lower-limb transfemoral amputation. METHODS:Center ...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-019-0586-9
更新日期:2019-09-14 00:00:00
abstract::Peripheral nerves possess the capacity of self-regeneration after traumatic injury but the extent of regeneration is often poor and may benefit from exogenous factors that enhance growth. The use of cellular systems is a rational approach for delivering neurotrophic factors at the nerve lesion site, and in the present...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-7-7
更新日期:2010-02-11 00:00:00
abstract:BACKGROUND:Vibrotactile stimulation is a promising venue in the field of prosthetics to retrain sensory feedback deficits following amputation. Discrimination is well established at the forearm level but not at the upper arm level. Moreover, the effects of combining vibration characteristics such as duration and intens...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-019-0597-6
更新日期:2019-11-13 00:00:00
abstract::Although all functional movement arises from the interplay between the neurological, skeletal, and muscular systems, it is the skeletal system that forms the basic framework for functional movement. Central to understanding human neuromuscular development, along with the genesis of musculoskeletal pathologies, is quan...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章,评审
doi:10.1186/s12984-018-0368-9
更新日期:2018-03-20 00:00:00
abstract:BACKGROUND:Obesity is a major problem especially in western countries and several studies underline the importance of physical activity to enhance diet. Currently there is increasing interest in instruments for monitoring daily physical activity. The purpose of this pilot study was to appraise the qualitative and quant...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-6-47
更新日期:2009-12-30 00:00:00
abstract:BACKGROUND:There is an important need to better understand the activities of individual patients with stroke outside of structured therapy since this activity is likely to have a profound influence on recovery. A case-study approach was used to examine the activity levels and associated physiological load of patients w...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-4-41
更新日期:2007-10-26 00:00:00
abstract:BACKGROUND:Mobile health monitoring using wearable sensors is a growing area of interest. As the world's population ages and locomotor capabilities decrease, the ability to report on a person's mobility activities outside a hospital setting becomes a valuable tool for clinical decision-making and evaluating healthcare ...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-016-0114-0
更新日期:2016-01-20 00:00:00
abstract:BACKGROUND:Add-on robot-mediated therapy has proven to be more effective than conventional therapy alone in post-stroke gait rehabilitation. Such robot-mediated interventions routinely use also visual biofeedback tools. A better understanding of biofeedback content effects when used for robotic locomotor training may i...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1186/s12984-019-0558-0
更新日期:2019-07-23 00:00:00
abstract:BACKGROUND:Assessing arm and hand sensorimotor impairments that are functionally relevant is essential to optimize the impact of neurorehabilitation interventions. Technology-aided assessments should provide a sensitive and objective characterization of upper limb impairments, but often provide arm weight support and n...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-020-00748-5
更新日期:2020-09-25 00:00:00
abstract:BACKGROUND:Treadmill training, with or without body-weight support (BWSTT), typically involves high step count, faster walking speed, and higher heart-rate intensity than overground walking training. The addition of challenging mobility skill practice may offer increased opportunities to improve walking and balance ski...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1186/s12984-018-0442-3
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:Although several studies have investigated the outcomes after distal hamstring lengthening (DHL), no study has undertaken an approach that included all or most of the important factors that could influence the results. This study was performed to evaluate the outcomes after DHL and analyze the factors that i...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-017-0296-0
更新日期:2017-08-14 00:00:00
abstract:BACKGROUND:Muscle synergies are now widely discussed as a method for evaluating the existence of redundant neural networks that can be activated to enhance stroke rehabilitation. However, this approach was initially conceived to study muscle coordination during learned motions in healthy individuals. After brain damage...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-019-0611-z
更新日期:2019-11-04 00:00:00
abstract:BACKGROUND:Virtual Reality provides new options for conducting motor assessment and training within computer-generated 3 dimensional environments. To date very little has been reported about normal performance in virtual environments. The objective of this study was to evaluate the test-retest reliability of a clinical...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-4-13
更新日期:2007-05-09 00:00:00
abstract::Despite upper extremity function playing a crucial role in maintaining one's independence in activities of daily living, upper extremity impairments remain one of the most prevalent post-stroke deficits. To enhance the upper extremity motor recovery and performance among stroke survivors, two training paradigms in the...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-018-0408-5
更新日期:2018-07-04 00:00:00
abstract:BACKGROUND:Although robot therapy is progressively becoming an accepted method of treatment for stroke survivors, few studies have investigated how to adapt the robot/subject interaction forces in an automatic way. The paper is a feasibility study of a novel self-adaptive robot controller to be applied with continuous ...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-7-13
更新日期:2010-03-15 00:00:00
abstract:BACKGROUND:Physical frailty has become the center of attention of basic, clinical and demographic research due to its incidence level and gravity of adverse outcomes with age. Frailty syndrome is estimated to affect 20 % of the population older than 75 years. Thus, one of the greatest current challenges in this field i...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-015-0040-6
更新日期:2015-05-24 00:00:00
abstract:BACKGROUND:The limited range of motion during walking in children with spastic cerebral palsy (SCP) may be the result of altered mechanical characteristics of muscles and connective tissues around the knee joint. Measurement of static net knee moment-angle relation will provide insights into these alterations, for whic...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/s12984-015-0056-y
更新日期:2015-08-15 00:00:00
abstract:BACKGROUND:A better understanding of lower-extremity muscles' activation patterns and joint kinematics during different workloads could help rehabilitation professionals with prescribing more effective exercise regimen for elderly and those with compromised muscles. We examined the relative contribution, as well as act...
journal_title:Journal of neuroengineering and rehabilitation
pub_type: 杂志文章
doi:10.1186/1743-0003-11-146
更新日期:2014-10-17 00:00:00