Multi-Digit Coordination in Absence of Cutaneous Sensory Feedback During Grasping Tasks

Author

Christina Gioeli, Graduate Center, City University of New YorkFollow
Kerry McPartlan, Graduate Center, City University of New YorkFollow
Emily Reid, Graduate Center, City University of New YorkFollow
Matthew Turturro, Graduate Center, City University of New YorkFollow

Date of Degree

6-2016

Document Type

Capstone Project

Degree Name

D.P.T.

Program

Physical Therapy

Advisor

Wei Zhang

Subject Categories

Medicine and Health Sciences | Physical Therapy | Rehabilitation and Therapy

Keywords

Multi-Digit Coordination, Anesthesia, Motor Control, Biomechanics, Physical Therapy, Sensory Feedback

Abstract

Motor learning and adaptation to object properties and task requirements requires integration of cutaneous sensory feedback with motor commands. Joint mechanics constantly change, with individual joints or muscles compensation so performance output is the same per task. Effects of mixed cutaneous sensory feedback on multi-digit coordination is not well understood. Investigators sought to determine the influence absent cutaneous sensory feedback has on motor learning and adaptation, and how the CNS coordinates multi-digit mechanical output to adapt to manual tasks, with partially intact digital sensory feedback. 19 participants were randomly assigned for three-digit anesthesia administration (TIM- thumb, index, middle; TRL- thumb, ring, little). Experimental tasks were repeated on two visits (control and anesthesia): grasping and lifting an object, and a functional task. Under partial digital anesthesia, total maximal voluntary contraction (MVC) was lower, and decreased force production was seen in all five digits (P

Recommended Citation

Gioeli, Christina; McPartlan, Kerry; Reid, Emily; and Turturro, Matthew, "Multi-Digit Coordination in Absence of Cutaneous Sensory Feedback During Grasping Tasks" (2016). CUNY Academic Works.
https://academicworks.cuny.edu/gc_etds/1232