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Abstract
Objective: to determine the reliability and the concurrent validity of the Spineangel® lumbo-pelvic postural monitoring device. Methods: the dynamic lumbo-pelvic posture of 25 participants was simultaneously monitored by the Spineangel® and FastrakTM devices. Participants performed six different functional tasks in random order. Within-task, within-session and between-day intraclass correlation coefficients (ICC(3,1), ICC(3,5), ICC(2,5), respectively) reliability were calculated for Spineangel® measurements. Concurrent validity of the Spineangel® was assessed by means of a Bland and Altman plot and by means of Pearson's correlation coefficient and paired t-test. Results: within-task, within-session and between-day ICC for the Spineangel® were found to be excellent (>0.93). The Spineangel® and FastrakTM pelvic measurements were found to have a good correlation (R = 0.77). Conclusion: the Spineangel® is a reliable and valid device for monitoring general lumbo-pelvic movements when clipped on the belt or waistband of workers' clothing during various occupational activities.
Practitioner summary: The Spineangel® can be used for assessing lumbo-pelvic posture during work or daily-life activities. This device was found to provide reliable and valid measurements for lumbo-pelvic movements. Further research is required to determine whether the use of this device is clinically relevant for patients presenting with low back pain.
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Acknowledgements
Financial support was provided by the University of Otago (PhD scholarship). The authors thank Movement Metrics Ltd for providing the Spineangel® device.
