J Korean Phys Ther.  2019 Aug;31(4):212-215. 10.18857/jkpt.2019.31.4.212.

Motor Skill Learning on the Ipsi-Lateral Upper Extremity to the Damaged Hemisphere in Stroke Patients

• Son SM
• Hwang YT
• Nam SH
• Kwon Y

• KMID: 2459205
• DOI: http://doi.org/10.18857/jkpt.2019.31.4.212

Abstract

PURPOSE
This study examined whether there is a difference in motor learning through short-term repetitive movement practice in stroke survivors with a unilateral brain injury compared to normal elderly participants.
METHODS
Twenty-six subjects who were divided into a stroke group (n=13) or sex-aged matched normal elder group (n=13) participated in this study. To evaluate the effects of motor learning, the participants conducted a tracking task for visuomotor coordination. The accuracy index was calculated for each trial. Both groups received repetitive tracking task training of metacarpophalangeal joint for 50 trials. The stroke group performed a tracking task in the upper extremity insi-lesional to the damaged hemisphere, and the normal elder group performed the upper extremity matched for the same side.
RESULTS
Two-way repetitive ANOVA revealed a significant difference in the interactions (time×group) and time effects. These results indicated that the motor skill improved in both the stroke and normal elder group with a tracking task. On the other hand, the stroke group showed lesser motor learning skill than the normal elder group, in comparison with the amount of motor learning improvement.
CONCLUSION
These results provide novel evidence that stroke survivors with unilateral brain damage might have difficulty in performing ipsilateral movement as well as in motor learning with the ipsilateral upper limb, compared to normal elderly participants.

Keyword

Stroke; Motor learning; Ipsilateral motor deficits

MeSH Terms

Aged
Brain
Brain Injuries
Hand
Humans
Learning*
Metacarpophalangeal Joint
Motor Skills*
Stroke*
Survivors
Upper Extremity*