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Paper Information

Journal:   JOURNAL OF REHABILITATION   FALL 2010 , Volume 11 , Number 3 (43); Page(s) 82 To 89.
 
Paper: 

RELIABILITY OF CENTER OF PRESSURE PARAMETERS IN POSTURAL SWAY AMONG ATHLETE AND NON-ATHLETE MEN IN DIFFERENT LEVELS OF FATIGUE AND VISION

 
 
Author(s):  MESHKATI Z.*, NAMAZI ZADEH M., SALAVATI M., MAZAHERI M.
 
* PHYSICAL EDUCATION FACULTY, KHORASGAN BRANCH OF ISLAMIC AZAD UNIVERSITY, DANESHGAH BLV., ARGHAVANIYE, EAST JEY AVE., ISFAHAN, IRAN
 
Abstract: 

Objective: This study aimed to investigate the skill, fatigue and vision-related differences between athlete and non-athlete men in reliability of center of pressure (COP) measures derived from force platform.
Materials & Methods: In this methodological and validation study, postural sway of 15 athlete and 16 non-athlete men who had been simply and conveniently selected, were tested on force platform on two sessions with a 48-72 hours interval. Center of pressure parameters were recorded during quiet two-legged standing before and after a general fatigue by treadmill exercise, with eyes open (EO) and eyes closed (EC). Standard deviation (SD) of amplitude and velocity in anteroposterior (AP) and mediolateral directions and mean total velocity were calculated on the base of collected data from thirty seconds test on center of pressure. Data were analyzed by Independent T test, Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM) and Coefficient of Variation (CV).
Results: Higher intraclass correlation coefficient was found for center of pressure measures in the athletes compared with the non-athletes. Also, intraclass correlation coefficient increased in post-fatigue compared with pre-fatigue, and eyes closed compared with eyes open conditions. Coefficients of variation smaller than 15% were obtained formost of the center of pressure measures. Regarding the level of skill, fatigue and vision, mean total velocity (P<0.001) and standard deviation of velocity in anteroposterior (P<0.001) were the most reliable parameters.
Conclusion: The results can aid to researchers in select of reliable center of pressure measures for future studies about postural control insports. In this way, researchers can use mean total velocity and standard deviation of velocity in anteroposterior in their studies in same conditions on athletes.

 
Keyword(s): CENTER OF PRESSURE, RELIABILITY, ATHLETE, FATIGUE, VISION
 
References: 
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