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¼¹ÎÈñ ( Suh Min-Hee ) - Inha University Department of Nursing
¼°æ»ê ( Seo Kyoung-San ) - Chungnam National University College of Nursing
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Abstract
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Purpose: The purpose of this study was to examine the level of agreement between smartphone apps and self-reportedphysical activity questionnaires.
Methods: Quantitative methods were used to assess the correlation and agreementbetween the number of steps counted by a smartphone app and the amount of walking reported in a survey. A total of29 adults who used smartphones were recruited from a university, and their step counts from their smartphonepedometers and responses to the international physical activity questionnaire (IPAQ) were collected over a 10-weekperiod.
Results: An analysis of 170 data pairs with Spearman's rho correlation and a Bland-Altman plot revealed a positivecorrelation between step counts from the smartphone app and walking activity from the IPAQ. The Bland-Altman plotalso demonstrated the agreement to be improved among female participants.
Conclusion: In assessing walking activity,smartphone pedometer apps showed good correlation with the IPAQ and improved agreement with the IPAQ amongwomen. Therefore, it is suggested that the participants¡¯ gender and activity intensity, as well as the accuracy ofmeasurement tools, should be considered in an evaluation of the delivery of physical activity promotion programs throughsmartphone apps.
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KeyWords
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Ÿ´çµµ Æò°¡, ½ÅüȰµ¿, ½º¸¶Æ®Æù, ¼³¹®, ÃøÁ¤
Exercise, Smartphone, Survey and questionnaire, Validation study
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