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KMID : 1211620150100040015
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Journal of the Korean Society of Physical Medicine
2015 Volume.10 No. 4 p.15 ~ p.23
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Validity and Reliability of the Knee Joint Proprioceptive Sensory Measurements using a Smartphone
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Kim Young-Chul
Kim Nam-Jae
Lee Min-Soo
Moon So-Ra
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Abstract
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PURPOSE : We aims to promote the development of proprioception measurement using smartphones, goniometers, and laser pointers as compared to the conventional use of electrogoniometer measurement.
METHODS : Measurements using an electrogoniometer were previously proved to be reliabile and valid. Among E-university students, 20 who had no fracture, operation history, or inflammatory arthritis were examined. These subjects had not performed regular exercise in the past 3 months. Proprioception measurements were performed using four different measurement tools, three times per day, for test-retest analysis.
RESULTS : No notable test-retest differences were noted for any of the measurement methods (P>0.05). With regard to the test-retest reliability for each measurement method, we observed that the readings from both the electrogoniometer and smartphone have high reliability (ICC>0.80), whereas the readings from the laser pointer have moderate reliability (ICC>0.60). When assessing the concurrent validity between electrogoniometers with individual measurements, we did not observe any notable difference between the smartphone and electrogoniometer (P>0.05) and these tools in fact showed high correlation (r>0.60, P<0.05) and a moderate reliability (ICC>0.60). Moreover, there was no notable difference in between electrogoniometers and laser pointers (P<0.05).
CONCLUSION : The findings of this suggested that proprioception can be measured by using smart-phones, and proved that this method has sufficient credibility. Moreover, we noted that the concurrent validity with smartphones was high in comparison with the conventional electrogoniometer, which also indicates the validity and credibility. Based on these findings, we conclude that the measurement of proprioception by using a smartphone can be widely adopted.
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KEYWORD
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Electrogoniometer, Joint position sense, Knee joint, Laser pointer, Proprioception, Proprioception measurement, Smartphone
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