Article

Bench and cross-sectional study. INTRODUCTION: Information obtained
from dexterity tests is an important component of a comprehensive examination of
the hand. PURPOSE : To analyze and compare finger interdependencies
during the performance of the Purdue Pegboard Test (PBT)
and comparative daily
tasks. METHODS: A method based on the optoelectronic kinematic analysis of the
precision grip style and on the calculation of cross-correlation coefficients
between relevant joint angles, which provided measures of the degree of finger
coordination, was conducted on 10 healthy participants performing the PBT and 2
comparative daily living tasks. RESULTS: Daily tasks showed identifiable
interdependencies patterns between the metacarpophalangeal joints of the fingers
involved in the grip. Tasks related to activities of daily living resulted in
significantly higher cross-correlation coefficients across subjects and movements
during the formation and manipulation phases of the tasks (0.7-0.9), whereas the
release stage produced significantly lower movement correlation values (0.3-0.7).
Contrarily, the formation and manipulation stages of the PBT showed low finger
correlation across most subjects (0.2-0.6), whereas the release stage resulted in
the highest values for all relevant movements (0.65-0.9). DISCUSSION:
Interdependencies patterns were consistent for the activities of daily living but
differ from the patterns observed from the PBT. CONCLUSIONS: The PBT does not
compare well with the whole range of finger movements that account for hand
performance during daily tasks. LEVEL OF EVIDENCE: Not applicable.
CI - Copyright (c) 2016 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.

Langue : ANGLAIS