Kinetisense has been validated by a third party Univeristy Biomechanics Lab. This study was conducted by Dr. Jon Doan, associate professor of engineering and biomechanics at the University of Lethbridge in Canada. Dr. Doan compared the accuracy of Kinetisense to current gold standards in range of motion assessment (goniometer and inclinometer), and to the 9 camera Vicon research camera.
1) validity of Kinetisense joint measures for cardinal movements in the sagittal and frontal planes, compared to current experimental and clinical gold standards;
2) repeatability of Kinetisense motion assessments.
24 healthy young adults performed 8 different actions, each to two different levels (specific normal range deflection, maximal deflection) and at one of two different clinically relevant camera-subject distances, inside the shared calibration volume of the Kinetisense and VICON Peak motion capture systems.
Data analysis and comparison
Bland-Altman agreement analysis will be used to compare perceived and maximum joint angles from the Kinetisense, the VICON (goniometer, inclinometer).
Kinetisense measures are valid compared to VICON-Peak measures, based on Bland-Altman agreement analysis. Differences that do exist may be a function of different segmental models (skin surface for the VICON, simplified skeleton for the Kinetisense), different data capture methods (time-based three-dimensional position sample for the VICON, instantaneous angular interpolation for the Kinetisense), and real differences in measurement.
The Kinetisense appears to be a highly viable clinical tool, accurate in comparison to current clinical and experimental gold standards, and possessing numerous advantages (cost, set up and collection speed, inter-user reliability, rapid data recording and patient progress reporting, ease of use) over those gold standards as well.
Dr. Doan found the Kinetisense system to be more accurate than both the goniometer and inclinometer. His research also found Kinetisense to be of similar accuracy to the Vicon system, based on Bland-Altman comparison. With these findings, Dr. Doan has integrated Kinetisense into his current Parkinson research as this system provides portability in field assessments.