Assessment of reach-to-grasp trajectories toward stationary objects

Šupuk, Tamara; Bajd, Tadej; Kurillo, Gregorij

doi:10.1016/j.clinbiomech.2011.04.007

Cited by 23 publications

(24 citation statements)

References 26 publications

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“…Similar findings that the acceleration value was still negative when the velocity value returned to 0 were reported by Supuk et al9 ) . In the present study, several repeated cycles of acceleration and deceleration in a short period followed the period analyzed here.…”

Section: Discussionsupporting

confidence: 90%

“…IA: increasing acceleration phase, DA: decreasing acceleration phase, ID: increasing deceleration phase, DD: decreasing deceleration phase shows a representative case with corresponding acceleration curves and EMG activities. The acceleration curve was essentially a diphasic complex, as already noted9 ) . In the present study, the simple biphasic profile of the reaching movement starting from a value of 0 acceleration (point 0 in Fig.…”

Section: Resultssupporting

confidence: 60%

“…It is possible that there is a precise regulatory mechanism when the palm approaches the target. Careful and precise examination will be needed to elucidate the possible factors contributing to the delicate kinematics operating in this late stage of the reach-to-grasp task, which might correspond to the phase of final closure of the fingers as reported by Supuk et al9 ) . On the other hand, there was little difference in the muscular activity of backward and forward movements in Phase DD, confirming that the muscle activities examined here were related to the acceleration profile, but not the velocity profile.…”

Section: Discussionmentioning

confidence: 95%

“…Phases divided on the basis of the velocity trajectory, which is bell-shaped5 ) , might be related to the phasic drives of the muscles’ activities. The peak of the velocity profile was reported to divide the reaching movement into a hand acceleration phase (positive values of tangential acceleration) and a hand deceleration phase (negative values of acceleration)9, 17 ) . The present study showed that this hand acceleration phase is composed of Phases IA and DA.…”

Section: Discussionmentioning

confidence: 99%

“…Supuk et al demonstrated that the reach-to-grasp movement can be divided into characteristic phases by simultaneously observing two aspects of the movement, hand transport and finger preshaping, on 3D video recordings. They also suggested the importance of evaluation of reaching movement, that is, hand transport, by quantitative methods from the viewpoint of rehabilitation9 ) .…”

Section: Introductionmentioning

confidence: 99%

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Muscle activation patterns in acceleration-based phases during reach-to-grasp movement

et al. 2016

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[Purpose] An earlier study divided reaching activity into characteristic phases based on hand velocity profiles. By synchronizing muscle activities and the acceleration profile, a phasing approach for reaching movement, based on hand acceleration profiles, was attempted in order to elucidate the roles of individual muscle activities in the different phases of the acceleration profile in reaching movements. [Subjects and Methods] Ten healthy volunteer subjects participated in this study. The aim was to electromyographically evaluate muscles around the shoulder, the upper trapezius, the anterior deltoid, the biceps brachii, and the triceps brachii, most of which have been used to evaluate arm motion, as well as the acceleration of the upper limb during simple reaching movement in the reach-to-grasp task. [Results] Analysis showed the kinematic trajectories of the acceleration during a simple biphasic profile of the reaching movement could be divided into four phases: increasing acceleration (IA), decreasing acceleration (DA), increasing deceleration (ID), and decreasing deceleration (DD). Muscles around the shoulder showed different activity patterns, which were closely associated with these acceleration phases. [Conclusion] These results suggest the important role of the four phases, derived from the acceleration trajectory, in the elucidation of the muscular mechanisms which regulate and coordinate the muscles around the shoulder in reaching movements.

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Section: Discussionsupporting

confidence: 90%

Section: Resultssupporting

confidence: 60%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Muscle activation patterns in acceleration-based phases during reach-to-grasp movement

et al. 2016

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Allocation of attention and dual-task effects on upper and lower limb task performance in healthy young adults

McIsaac

Benjapalakorn

2015

Exp Brain Res

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Many daily activities require separate tasks of the arms and legs to be performed together, as in driving where one foot controls the accelerator, one arm steers, and the other arm and foot shift gears and clutch. Strategies and underlying mechanisms for attention allocation and task prioritization have been explored in standing and walking while performing a manual or cognitive task. These studies reveal a task-related strategy that often, but not always, prioritizes the lower limb task of walking. However, in the absence of locomotion and gait-related postural control, as in sitting, multi-limb dual-task strategies are largely unexplored. Therefore, to characterize dual-task interference of arm and leg tasks during a driving-like activity, seated participants were assessed for the interference effect on hand velocity and movement time of a three-phase reach task and on the error in tracking of a foot-pedal ramp-tracking task. We found that the dual-task cost to reaching shown as decreases in reach performance differed among the three phases, that the cost to foot-pedal tracking also differed by phase, and that the between-task trade-off and prioritization strategy varied between the steep and gradual tracking ramps. Therefore, we propose that attention to concurrent reaching and foot-pedal tracking was flexibly allocated based on phase of the tasks.

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Gait and reach-to-grasp movements are mutually modified when performed simultaneously

Rinaldi

Moraes

2015

Human Movement Science

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Assessment of reach-to-grasp trajectories toward stationary objects

Cited by 23 publications

References 26 publications

Muscle activation patterns in acceleration-based phases during reach-to-grasp movement

Muscle activation patterns in acceleration-based phases during reach-to-grasp movement

Allocation of attention and dual-task effects on upper and lower limb task performance in healthy young adults

Gait and reach-to-grasp movements are mutually modified when performed simultaneously

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