Reach-to-grasp interjoint coordination for moving objects in children with hemiplegia

Maurizio Petrarca, Giulia Zanelli, Fabrizio Patanè, Flaminia Frascarelli, Paolo Cappa, Enrico Castelli

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Objective: To evaluate interjoint coordination in children with hemiplegia as they reach to grasp objects, in both static and dynamic conditions. An ad hoc robotic device was used to study the dynamic condition. Design: Observational study. Patients: Six children with hemiplegia and 6 young adults. Methods: Kinematics of the trunk and arm were studied using an optoelectronic system. In the dynamic condition the target object, a cup, was moved by the robotic device along clockwise and counterclockwise circular trajectories. Results: Two main strategies were used to study the onset and offset of shoulder and elbow movements and their maximum velocities. The hand velocity profile was bell-shaped in the static condition and compatible with ramp movements for the more affected side in the dynamic condition. The time to object contact was higher for the more affected side in the dynamic condition. The temporal coordination index illustrated an immature and less flexible behaviour in children's reaching in all the examined conditions. Conclusion: Study of the hand velocity profiles, the time to object contact and the temporal coordination index highlighted, first, the dependence of upper limb interjoint coordination on task, context, residual resources and individual solution, and secondly, the sensory-motor deficit characteristics of the children's more affected side during dynamic reaching, raising the prospect of a promising training context in children with hemiplegia.

Original languageEnglish
Pages (from-to)995-1002
Number of pages8
JournalJournal of Rehabilitation Medicine
Volume41
Issue number12
DOIs
Publication statusPublished - Oct 2009

Fingerprint

Hemiplegia
Hand Strength
Robotics
Hand
Equipment and Supplies
Architectural Accessibility
Child Behavior
Elbow
Biomechanical Phenomena
Upper Extremity
Observational Studies
Young Adult
Arm

Keywords

  • Children
  • Hemiplegia
  • Interjoint coordination
  • Moving target
  • Reaching

ASJC Scopus subject areas

  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Medicine(all)

Cite this

Reach-to-grasp interjoint coordination for moving objects in children with hemiplegia. / Petrarca, Maurizio; Zanelli, Giulia; Patanè, Fabrizio; Frascarelli, Flaminia; Cappa, Paolo; Castelli, Enrico.

In: Journal of Rehabilitation Medicine, Vol. 41, No. 12, 10.2009, p. 995-1002.

Research output: Contribution to journalArticle

Petrarca, Maurizio ; Zanelli, Giulia ; Patanè, Fabrizio ; Frascarelli, Flaminia ; Cappa, Paolo ; Castelli, Enrico. / Reach-to-grasp interjoint coordination for moving objects in children with hemiplegia. In: Journal of Rehabilitation Medicine. 2009 ; Vol. 41, No. 12. pp. 995-1002.
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