Validation.




In order for data collected by wearable devices to be used in the medical or insurance industry, the data and information must be accurate and clinically useful. In order to verify that the gait parameters measured by the footLogger is accurate and useful for use in healthcare and medical fields, validation and clinical research were conducted.

  • Accuracy comparison between 3D motion analysis system and footLogger
  • Accuracy comparison between walkway type gait analysis system and footLogger
  • Clinical study on gait evaluation of stroke patients using footLogger

Accuracy comparison between 3D motion analysis system and footLogger

We collected gait data at the same time with the 3D motion analysis system and footLogger and compared 21 gait parameters. The measurement accuracy of the average ICC 0.95 level was confirmed. ICC (Intraclass Correlation Coefficient) is a statistical method that measures the degree of mutual similarity between groups, and good similarity is recognized when it is 0.75 or more. (A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research, Koo TK, Li MY, June 2016)

ICC(Intraclass Correlation Coefficient, 급내상관계수) : 그룹간 상호 유사도 측정 통계방식, 0.75이상 일때 좋은(good) 유사성을 인정 (A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research, Koo TK, Li MY, June 2016)


Accuracy comparison between walkway type gait analysis system and footLogger

We collected gait data at the same time with the GAITRite, walkway type gait analysis system, compared 4 gait parameters. The measurement accuracy of the average ICC 0.95 level was confirmed. ICC (Intraclass Correlation Coefficient) is a statistical method that measures the degree of mutual similarity between groups, and good similarity is recognized when it is 0.75 or more. (A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research, Koo TK, Li MY, June 2016)

ICC(Intraclass Correlation Coefficient, 급내상관계수) : 그룹간 상호 유사도 측정 통계방식, 0.75이상 일때 좋은(good) 유사성을 인정 (A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research, Koo TK, Li MY, June 2016) 


Clinical study on gait evaluation of stroke patients using footLogger

In a paper (2020) published by Pusan National University Hospital in Korea in JMIR Mhealth Uhealth (IF 4.3), it was confirmed that the footLogger can be used as a gait evaluation device for hemiplegic patients due to stroke.


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