(1) postural and suprapostural performance of a dual task would be differently affected by the strategy of task prioritization and (2) the cortical activation is different according to attentional focus strategies.
These hypothesis would be tested by gait performance, suprapostural accuracy and relative power spectrum of EEG.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
28
Postural task: Participants are standing with their weak side on the force plate. During the task, they wight-shift from side to side ranging from 10 to 90 percent of their body weight. Suprapostural task: Participants hold a tray with their arms beside the body, 90 degrees of elbow flexion. They rotate the tray left and right for 45 degrees respectively. During their task, participants should weight-shift and rotate the tray at the same time.
National Taiwan University
Taipei, Taiwan
EEG relative power in the delta band
postural and suprapostural performance of a dual task
Time frame: 60 minutes
EEG relative power in the theta band
postural and suprapostural performance of a dual task
Time frame: 60 minutes
EEG relative power in the alpha band
postural and suprapostural performance of a dual task
Time frame: 60 minutes
EEG relative power in the beta band
postural and suprapostural performance of a dual task
Time frame: 60 minutes
EEG relative power in the gamma band
postural and suprapostural performance of a dual task
Time frame: 60 minutes
COP trajectory recorded from the force plate
performance of the postural task
Time frame: 60 minutes
Angles from inclinometer
performance of the suprapostural task
Time frame: 60 minutes
Gait velocity from GAITRite
gait performance
Time frame: 5 minutes
Cadence from GAITRite
gait performance
Time frame: 5 minutes
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Mean step length from GAITRite
gait performance
Time frame: 5 minutes
Step-to-step variability from GAITRite
gait performance
Time frame: 5 minutes