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KMID : 0608320130200020052
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Physical Therapy Korea
2013 Volume.20 No. 2 p.52 ~ p.59
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Reliability and Validity of the Postural Balance Application Program Using the Movement Accelerometer Principles in Healthy Young Adults
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Park Seong-Doo
Kim Ji-Seon
Kim Suhn-Yeop
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Abstract
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The purpose of this study was to determine the reliability and validity of the postural balance program which uses the movement accelerating field principles of posture balance training and evaluation equipment and smartphone movement accelerometer program (SMAP) in healthy young adults. A total of 34 people were appointed as the subject among the healthy young adults. By using Biodex stability system (BSS) and SMAP on the subject, the posture balance capability was evaluated. For the test-retest reliability, SMAP showed the intra-class correlation (ICC: .62∼.91) and standard error measurement (SEM: .01∼.08). BSS showed the moderate to high reliability of ICC (.88∼.93) and SEM (.02∼.20). In the reliability of inter-rater, ICC (.59∼.73) as to SMAP, showed the reliability of moderate in eyes open stability all (EOSA), eyes open stability anterior posterior (EOSAP), eyes open stability medial lateral (EOSML) and eyes open dinamic all (EODA), eyes open danamic anterior posterior (EODAP), and eyes open danamic medial lateral (EODML). However, ICC showed reliability which was as low as .59 less than in other movements. In addition, BSS showed the reliability of high as ICC (.70∼.75). It showed reliability which was as low as ICC (.59 less than) in other movements. In correlation to the balance by attitudes between SMAP and BSS, EOSML (r=.62), EODA (r=.75), EODML (r=.72), ECDAP (r=.64), and ECDML (r=.69) shown differ significantly (p<.05). However, the correlation noted in other movements did not differ significantly. Therefore, SMAP and BSS can be usefully used in the posture balance assessment of the static and dynamic condition with eyes opened and closed.
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KEYWORD
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Accelerometer, Postural balance, Reliability, Validity
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