Other language title :
Effects of Proprioceptive and Visual Disturbance on Inphase and Anti-phase Hand Performance
Title of article :
اثرات تخريب حس عمقي و بينايي بر اجراي الگوهاي درون مرحله و خارج مرحله دست
Author/Authors :
Norouzi، Ebrahim نويسنده Faculty of Physical Education & Sport science,Department of Human Motor Behavior,Shahid Beheshti University,Tehran,Iran , , Farsi، Alireza نويسنده Faculty of Physical Education & Sport science,Department of Human Motor Behavior,Shahid Beheshti University,Tehran,Iran , , Vaezmousavi، Mohammad نويسنده Faculty of Social Sciences,Department of Sport Science,Imam Hossein Comprehensive University,Tehran,Iran ,
Abstract :
هدف از تحقيق حاضر بررسي دستكاري حواس و سرعت بر اجراي هماهنگي پوياي دو دستي بود. بنابراين، 15 دانشجوي تربيت بدني دانشگاه شهيد بهشتي با دامنه سني 18 تا 25 سال، به عنوان آزمودني الگوهاي هماهنگي درون مرحله و خارج مرحله را از سرعت آهسته به تند در 4 وضعيت حسي مختلف اجرا كردند. براي بررسي دو الگوي حركتي، از دو آزمون تحليل واريانس با اندازه گيري تكراري (4 شرايط حسي times 3 سرعت اجرا) روي هر كدام از الگوهاي درون مرحله و خارج مرحله استفاده و اثرات اصلي پس از آن با استفاده از آزمون تعقيبي بونفرني تحليل شد. متغير وابسته خطاي فاز نسبي بود. نتايج نشان داد كه افزايش سرعت اجراي حركات بر اجراي الگوي حركتي خارج مرحله1800 اثر داشت(001/0p=)، اما بر الگوي درون مرحله00 اثري نداشت(9/0p=). نتايج دستكاري حواس نشان داد كه در دقت و تغيير پذيري اجراي دو فاز نسبي الگوهاي حركتي، دستكاري بينايي و حس عمقي اثر دارد(001/0. علاوه براين، در اين تحقيق بيشترين مقدار ميانگين خطاي فازنسبي و انحراف معيار خطاي فاز نسبي در وضعيت دستكاري حس عمقي بود(001/0p=). در توضيح يافته هاي حاضر مي توان بيان كرد كه تكليف خطي هماهنگي دو دستي در تحقيق حاضر يك تكليف وابسته به حس عمقي است.
Abstract :
Purpose: The present study aimed to investigate the effect of sensory and movement speed manipulations on bimanual coordination dynamics. Here we compared to what extent the absence and or bias of different sensory modalities affect performance of coordination of movements.
Methods: Fifteen physical education students of Shahid Beheshti University (aged 1825 years) were participated in the study. Participants performed bimanual inphase and antiphase movements with their wrists at 3 levels of speed ranging from slow to fast and 4 different sensory conditions, including 1) Normal sensory input 2) Masked vision 3) Masked proprioception and
4) Full sensory deprivation. Separate analyses of variance (ANOVA) with repeated measures on speed and sensory conditions were conducted for the inphase and antiphase movement patterns, followed by post hoc analyses using the Bonferroni correction. The dependent variable was error of relative phase.
Results: In line with observations from previous studies, results of our study showed that increasing movement speed influenced performance of the antiphase (P=0.001) but not the inphase (P=0.9) coordination patterns. Specifically, as speed increased from slow to fast, the performance of 1800 antiphase patterns destabilized, with participants showing higher error
scores of relative phase. Sensory manipulation showed that proprioception and vision did influence the accuracy and consistency of the coordination tasks in both the inphase and antiphase movement patterns (P=0.001).
Conclusion: The performance of a bimanual linear coordination task depends mainly on the availability of proprioceptive input.
Keywords :
Bimanual Coordination , proprioception , Vision , Feedback
Journal title :
Astroparticle Physics