Three-dimensional kinematics of the upper limb during a Reach and Grasp Cycle for children

Butler, Erin E.; Ladd, Amy L.; Louie, Stephanie A.; LaMont, Lauren E.; Wong, Wendy; Rose, Jessica

doi:10.1016/j.gaitpost.2010.03.011

Cited by 82 publications

(51 citation statements)

References 32 publications

(46 reference statements)

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“…In Heidari et al (2016), the authors studied the kinematic movements of upper limb during selected tasks in order to compare stroke patients and normal subjects. In Butler et al (2010), the authors developed a quantitative method to assess upper limb motor deficits in children with cerebral palsy using three-dimensional motion analysis during the reach and grasp cycle. Other papers studied muscular synergies in upper limb activities, as in d ' Avella and Tresch (2002), where the authors introduced a model based on combinations of muscle time-varying synergies, and in d ' Avella et al (2006), where authors recorded electromyographic activity from shoulder and arm muscles during point-to-point movements.…”

Section: Introductionmentioning

confidence: 99%

Unvealing the Principal Modes of Human Upper Limb Movements through Functional Analysis

et al. 2017

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The rich variety of human upper limb movements requires an extraordinary coordination of different joints according to specific spatio-temporal patterns. However, unvealing these motor schemes is a challenging task. Principal components have been often used for analogous purposes, but such an approach relies on hypothesis of temporal uncorrelation of upper limb poses in time. To overcome these limitations, in this work, we leverage on functional principal component analysis (fPCA). We carried out experiments with 7 subjects performing a set of most significant human actions, selected considering state-of-the-art grasp taxonomies and human kinematic workspace. fPCA results show that human upper limb trajectories can be reconstructed by a linear combination of few principal time-dependent functions, with a first component alone explaining around 60/70% of the observed behaviors. This allows to infer that in daily living activities humans reduce the complexity of movement by modulating their motions through a reduced set of few principal patterns. Finally, we discuss how this approach could be profitably applied in robotics and bioengineering, opening fascinating perspectives to advance the state of the art of artificial systems, as it was the case of hand synergies.

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Section: Introductionmentioning

confidence: 99%

Unvealing the Principal Modes of Human Upper Limb Movements through Functional Analysis

et al. 2017

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“…Thus far, merely two studies have assessed the reliability of UL kinematics in TDC [11,12]. While both studies reported good within and between session reliability, only Butler et al [11] provided an estimate of the measurement error. Still, information on the measurement errors is indispensable for a proper interpretation of reliability results.…”

Section: Introductionmentioning

confidence: 99%

Upper limb kinematics: Development and reliability of a clinical protocol for children

et al. 2011

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This study proposed a child-friendly measurement procedure for the three-dimensional analysis of upper limb movements, based on a comprehensive movement protocol. Within and between session reliability was tested in a group of 10 typically developing children (TDC) (mean age 10.3±3.2 years). The movement protocol was constructed for children with hemiplegic cerebral palsy (HCP) and contained three reach tasks (forwards, upwards, sideways), three reach-to-grasp tasks (with objects requiring different hand orientations) and three gross motor tasks. Upper limb kinematics were calculated following the ISB-guidelines. Reliability of movement duration/speed and endpoint joint angles was assessed with the intraclass correlation coefficient; similarity of the waveforms with the coefficient of multiple correlation; measurement errors were also calculated. Reliability coefficients were generally high for movement duration/speed and most kinematic parameters. Endpoint angles for scapular tilting, shoulder elevation plane and elevation, elbow flexion-extension and wrist ulnar-radial deviation showed highest reliability. Angular waveforms were best repeated for scapular medio-lateral rotation and pro-retraction, shoulder elevation plane and elevation, and elbow flexion-extension. Results also seemed task-dependent. This study indicated that the proposed procedure could be used reliably to quantify upper limb movements in TDC. However, to compose proper age-related standards for the different tasks, larger study samples are needed. This will also help with a well-founded task-selection depending on the joints of interest. Finally, further research will need to establish the reliability in children with HCP.

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“…In upper limb task performance, the most consistently observed differences between unilateral CP and typically developing (TD) teenagers include longer movement durations, reduced trajectory straightness and lower peak velocities exhibited by the former (Mackey et al 2006;Steenbergen and Meulenbroek 2006;Smits-Engelsman et al 2007;Domellöf et al 2009;Jaspers et al 2009Jaspers et al , 2011. Compared to their TD peers, teenagers with unilateral CP have also consistently been shown to demonstrate diminished magnitude of elbow extension and increased magnitude of trunk flexion and/or rotation (Mackey et al 2006;Steenbergen and Meulenbroek 2006;Butler et al 2010;Reid et al 2010;Jaspers et al 2009Jaspers et al , 2011.…”

Section: Introductionmentioning

confidence: 99%

“…Earlier research designed to identify differences in upper limb function between individuals with CP and their TD age-matched peers involved a variety of upper limb tasks: reaching forward, upward and sideways; reaching to grasp different objects; directing the hand to the mouth, to the head or to the contralateral shoulder; and performing fast aiming movements toward targets positioned at different locations, among others (Van Thiel et al 2000;Mackey et al 2006;Steenbergen and Meulenbroek 2006;Rönnqvist and Rösblad 2007;Smits-Engelsman et al 2007;Domellöf et al 2009;Jaspers et al 2009Jaspers et al , 2011Butler et al 2010;Reid et al 2010). The experimental protocols of most of these studies did not include systematic manipulations of the conditions under which the task was performed, such as precision and speed requirements, quality of the tool or upper limb used for performance (for exceptions, see Van Thiel et al 2000;Steenbergen and Meulenbroek 2006;and Smits-Engelsman et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Widely used in the field of perceptuo-motor control, Fitts' (1954) reciprocal aiming task offered the required framework. The goal of the task is to move as rapidly as possible between two targets separated by distance D without sacrificing accuracy requirements imposed by target size W. The duration of aiming movements from one target to the other has reliably been demonstrated to increase with task difficulty, captured by the index of difficulty: ID = log 2 (2D/W) (Fitts 1954;Guiard 1993Guiard , 1997Mottet and Bootsma 1999;Buchanan et al 2003;Bootsma et al 2004;Fernandez and Bootsma 2004;Bongers et al 2009;Huys et al 2010). In the present contribution, task conditions were varied by performing the task with the preferred/ non-affected and non-preferred/affected upper limbs and by manipulating the targets' size and the inertial properties of the pointer.…”

Section: Introductionmentioning

confidence: 99%

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Upper limb performance and the structuring of joint movement in teenagers with cerebral palsy: the reciprocal role of task demands and action capabilities

et al. 2015

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Individuals with unilateral cerebral palsy (CP) demonstrate reduced performance in upper limb tasks compared to typically developing (TD) peers. We examined whether task conditions modify differences between teenagers with and without CP during a reciprocal aiming task. Twenty teenagers (nine CP and 11 TD) moved a pointer between two targets as fast as possible without missing a target. Task conditions were manipulated by changing the targets' size, by modifying the inertial properties of the pointer and by varying the upper limb used to perform the task (preferred/non-affected and non-preferred/affected upper limbs). While compared to TD peers, CP teenagers exhibited lower performance (longer movement times). Such differences were attenuated when the task was performed with the preferred upper limb and when accuracy requirements were less stringent. CP teenagers were not differentially affected by the pointer inertia manipulation. Task conditions not only affected performance but also joint kinematics. CP teenagers revealed less movement at the elbow and more movement at the shoulder when performing the task with their less skilled upper limb. However, both CP and TD teenagers demonstrated a larger contribution of trunk movement when facing more challenging task conditions. The overall pattern of results indicated that the joint kinematics employed by individuals with unilateral CP constituted adaptive responses to task requirements. Thus, the explanation of the effects of unilateral CP on upper limb behavior needs to go beyond a context-indifferent manifestation of the brain injury to include the interaction between task demands and action capabilities.

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Three-dimensional kinematics of the upper limb during a Reach and Grasp Cycle for children

Cited by 82 publications

References 32 publications

Unvealing the Principal Modes of Human Upper Limb Movements through Functional Analysis

Unvealing the Principal Modes of Human Upper Limb Movements through Functional Analysis

Upper limb kinematics: Development and reliability of a clinical protocol for children

Upper limb performance and the structuring of joint movement in teenagers with cerebral palsy: the reciprocal role of task demands and action capabilities

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