Abstract:
:We investigated the individual muscle contribution to arm motion to better understand the complex muscular coordination underlying three-dimensional (3D) reaching tasks of the upper limb (UL). The individual contributions of biceps, triceps, deltoid anterior, medius, posterior and pectoralis major to the control of specific degrees of freedom (DOFs) were examined: using a scaled musculoskeletal model, the muscle excitations that reproduce the kinematics were calculated using computed muscle control and a forward simulation was generated. During consequent perturbation analyses, the muscle excitation of selected muscles was instantaneously increased and the resulting effect on the specific DOF was studied to quantify the muscle contribution. The calculated muscle contributions were compared to the responses elicited during electrical stimulation experiments. Innovative in our findings is that muscle action during reaching clearly depended on the reaching trajectory in 3D space. For the majority of the muscles, the magnitude of muscle action changed and even reversed when reaching to different heights and widths. Furthermore, muscle effects on non spanned joints were reported. Using a musculoskeletal model and forward simulation techniques, we demonstrate individual position-dependent muscle contributions to 3D joint kinematics of the UL.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Vandenberghe A,Bosmans L,De Schutter J,Swinnen S,Jonkers Idoi
10.1016/j.gaitpost.2011.11.028subject
Has Abstractpub_date
2012-04-01 00:00:00pages
579-84issue
4eissn
0966-6362issn
1879-2219pii
S0966-6362(11)00796-Xjournal_volume
35pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract:BACKGROUND:Inertial Measurement Unit (IMU)-based gait analysis algorithms have previously been validated in healthy controls. However, little is known about the efficacy, performance, and applicability of these algorithms in clinical populations with gait deviations such as lower limb prosthesis users (LLPUs). RESEARC...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.05.025
更新日期:2018-07-01 00:00:00
abstract::The purpose of this study was to quantitatively evaluate spontaneous body sway during maximum grasping maneuver with a hand dynamometer, which we sometimes encounter in clinical practice. The postural reaction of the whole body during maximum grasping maneuver was analyzed in 26 right-handed healthy male volunteers us...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2003.09.003
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Walking and mobility are essential for a satisfactory quality of life. However, individuals with transfemoral amputations have difficulties in preventing falls due to prosthetic knee buckling, defined as the sudden loss of postural support during weight-bearing activities. The risk of prosthetic knee bucklin...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.01.002
更新日期:2020-03-01 00:00:00
abstract::Skeletal abnormalities, affecting posture and walking pattern, increase with motor impairment in children with cerebral palsy (CP). However, it is not known whether these skeletal malalignments occur in children with slight motor impairment. Our aim was to evaluate skeletal malalignment at the level of the pelvis and ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.06.029
更新日期:2016-09-01 00:00:00
abstract::The Gait Deviation Index (GDI) and Gait Profile Score (GPS) are the most used summary measures of gait in children with cerebral palsy (CP). However, the reliability and agreement of these indices have not been investigated, limiting their clinimetric quality for research and clinical practice. The aim of this study w...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2015.04.019
更新日期:2015-07-01 00:00:00
abstract::Several studies indicated that walking with an ankle foot orthosis (AFO) impaired third rocker. The purpose of this study was to evaluate the effects of two types of orthoses, with similar goal settings, on gait, in a homogeneous group of children, using both barefoot and shoe walking as control conditions. Fifteen ch...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2006.08.003
更新日期:2006-10-01 00:00:00
abstract::We investigated the relationship of hip, knee and ankle function to gait speed in healthy elderly subjects. We hypothesized that the hip extension moment would make a significantly smaller contribution to propulsion power in the elderly than in healthy young subjects even when the elders were ambulating at speeds comp...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(01)00133-3
更新日期:2001-12-01 00:00:00
abstract::The goal of this study was to describe the movement pattern of the body-segment rotations of healthy subjects in the horizontal plane while they were standing on a supporting platform that imposed steady sinusoidal horizontal rotations under three visual conditions: (a) eyes closed with no instructions (EC-NI), (b) ey...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2008.04.013
更新日期:2008-11-01 00:00:00
abstract::Little is understood of the mechanisms of locomotion if human subjects are not moving in a straight path. The identification of contributory variables to curved motion would also underpin other non-linear actions such as cutting and turning. The performance of such tasks has relevance to both success in sports and exe...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2005.11.007
更新日期:2006-12-01 00:00:00
abstract::This is an observational cross-sectional study evaluating gait dynamics in patients with Parkinson's Disease (PD) and severe postural deformities, PD without axial deviations and healthy subjects. Ten PS individuals with Pisa syndrome (PS) and nine subjects with Camptocormia (CC) performed 3-D Gait Analysis and were e...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.05.029
更新日期:2017-09-01 00:00:00
abstract::Most falls in older people are due to loss of balance during everyday locomotion, e.g., when initiating walking from sitting; sit-to-walk (STW). It has been considered that the broader stride width in walking that is seen in many people with fear of falling (FoF) does not increase stability, but could be predictive of...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.01.018
更新日期:2010-04-01 00:00:00
abstract::Patients with type II diabetes mellitus (DM) have been reported to be at high risk of falls that may be further increased by the effects of challenging activities such as obstacle-crossing. The purpose of this study was to compare the end-point trajectory and joint kinematic and kinetic patterns of the lower extremiti...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2009.09.005
更新日期:2010-01-01 00:00:00
abstract::This study had two aims. Firstly, to characterise the temporal-spatial and ground reaction impulse adjustments, compared to straight gait, required to complete step turns to the left and to the right and secondly, to assess if the turns were asymmetrical. Seven participants were instructed to perform 90 degrees step t...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2008.12.015
更新日期:2009-06-01 00:00:00
abstract::An induced acceleration analysis (IAA) model was used to investigate the effect of tibial torsion on the ability of the soleus to support and propel the body during gait. The IAA approach is well suited for this study because it allows soleus action to be quantified in the presence of varying amounts of tibial torsion...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(02)00058-9
更新日期:2003-04-01 00:00:00
abstract:BACKGROUND:Individuals suffering a sport-related concussion typically recover within 1 month; however, persistent post-concussive symptoms are known to occur beyond this period. Clinical guidelines may not be sufficient to determine if dynamic postural control is still impaired at the point of the return to play decisi...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.08.105
更新日期:2020-09-01 00:00:00
abstract::Although total hip arthroplasty (THA) is known to be a successful surgical procedure to alleviate hip pain and to improve health-related quality of life, these outcome measures in THA patients do not reach those of the general population. As a result, several investigators have assessed THA patients' gait mechanics, b...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.05.007
更新日期:2010-06-01 00:00:00
abstract::This study sought to (a) determine the domains of clinical balance impairments associated with Huntington's disease (HD), and (b) evaluate associations between balance test scores and other disease-related impairments. Eighteen subjects with genetically definite HD and 17 age-matched control subjects were evaluated on...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.02.018
更新日期:2015-03-01 00:00:00
abstract::Healthy young and elderly adults were asked to actively modulate neck muscle stiffness during random rotations of the trunk in the vertical plane. Angular velocity of head with respect to trunk and myoelectric activity of semispinalis capitis and sternocleidomastoid muscles were recorded. A MANOVA was performed on gro...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(99)00046-6
更新日期:2000-02-01 00:00:00
abstract::The purpose of this study was to determine prospectively gait related risk factors for exercise-related lower leg pain (ERLLP) in 400 physical education students. Static lower leg alignment was determined, and 3D gait kinematics combined with plantar pressure profiles were collected. After this evaluation, all sports ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2004.12.004
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Karate training likely leads to enhanced postural control, however, previous studies did not always include a healthy, physically active comparison group and the findings are inconsistent. RESEARCH QUESTION:Will the postural control of experienced karate practitioners be better than that of experienced swim...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.01.030
更新日期:2020-03-01 00:00:00
abstract::Weight bearing asymmetry is common in patients with unilateral lower limb musculoskeletal pathologies. The Nintendo Wii Balance Board (WBB) has been suggested as a low-cost and widely-available tool to measure weight bearing asymmetry in a clinical environment; however no study has evaluated the validity of this tool ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.01.023
更新日期:2015-02-01 00:00:00
abstract::Alzheimer's disease (AD) and behavioral variant of Frontotemporal Dementia (bvFTD) are characterized respectively by atrophy in the medial temporal lobe with memory loss and prefrontal and anterior temporal degeneration with dysexecutive syndrome. In this study, we hypothesized that specific gait patterns are induced ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.12.021
更新日期:2017-02-01 00:00:00
abstract::The purpose of this cross-sectional study was to investigate whether gender differences exist in postural reaction when examining response time and amplitude of normalized ground reaction force (GRF) in subjects with low back pain (LBP). Alterations in GRF following sudden perturbations have led to an increased awaren...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2008.09.012
更新日期:2009-02-01 00:00:00
abstract::While past investigations focused on describing pelvic motion patterns in the frontal and transversal plane, the sagittal plane "double bump" pattern commonly found in children with cerebral palsy was only rarely investigated, especially concerning the underlying pathology. 375 ambulatory (GMFCS I-III) patients with b...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.08.014
更新日期:2014-01-01 00:00:00
abstract::Nonlinear dynamics quantifies gait variability patterns, which can be useful in evaluating functional ability. A commonly used nonlinear technique is detrended fluctuation analysis (DFA). Safety support structures have previously been shown to alter DFA during gait. However, the effect of a nonweight-supporting treadm...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.11.012
更新日期:2016-02-01 00:00:00
abstract::Over 230,000 new cases of breast cancer are expected to be diagnosed in the United States in 2015. Taxane-based chemotherapy is often an effective treatment, but can also cause adverse symptoms in patients due to neurotoxicity. These side effects can impair postural control in patients; however, this instability has s...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.06.011
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Prepulse inhibition (PPI) is a neurophysiological phenomenon whereby a weak stimulus modulates the reflex response to a subsequent strong stimulus. Its physiological purpose is to avoid interruption of sensory processing by subsequent disturbing stimuli at the subcortical level, thereby preventing undesired ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.07.194
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Osteoarthritis (OA) is a chronic degenerative disease which can result in chronic pain, loss of joint function and consequently decline in quality of life. RESEARCH QUESTION:A variety of instruments that measure the different dimensions of health status in patients with OA are available. However, despite th...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.08.121
更新日期:2020-10-01 00:00:00
abstract::This study investigates whether aging has an influence on the dynamics of the fluctuations of the displacement of the center of pressure (COP), during quiet standing. Two groups of healthy subjects were compared (11 young and 12 elderly) for two visual feedback conditions (eyes open and eyes closed). The data were ana...
journal_title:Gait & posture
pub_type: 临床试验,杂志文章
doi:10.1016/j.gaitpost.2009.05.005
更新日期:2009-08-01 00:00:00
abstract::The number of falls and/or accidental injuries associated with cellular phone use during walking is growing rapidly. Understanding the effects of concurrent cell phone use on human gait may help develop safety guidelines for pedestrians. It was shown previously that older adults had more pronounced dual-task interfere...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.03.347
更新日期:2015-05-01 00:00:00