Table of Contents
ISRN Rehabilitation
Volume 2014, Article ID 508414, 6 pages
Research Article

Spine Curve Measures Taken in Individuals with Osteoporosis and Osteopenia Using the IONmed Mobile Phone Application Are Highly Consistent with Digital Inclinometer Measures

1School of Rehabilitation Science, McMaster University, IAHS 403, 1400 Main Street West, Hamilton, ON, Canada L8S 1C7
2United Osteoporosis Centres, 2350 Limestone Parkway, N.E., Gainesville, GA 30501, USA

Received 30 October 2013; Accepted 8 December 2013; Published 17 April 2014

Academic Editors: Y.-W. Hsieh, C.-L. Kao, and A. Ozcan Edeer

Copyright © 2014 Norma J. MacIntyre et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. This study determined the agreement between measures of standing posture in individuals at risk of osteoporotic fracture obtained using the IONmed mobile phone application and a digital inclinometer. Methods. One experienced rater assessed 20 adults, aged 55–88 years, attending an outpatient osteoporosis clinic. A standardized protocol was duplicated to acquire a single measure of spine curvature (lumbosacral angle, lordosis, kyphosis) using the IONmed mobile phone application and a digital inclinometer. Interdevice agreement was determined using the intraclass correlation coefficient (ICC) with 95% confidence intervals (CI) and standard error of the measurement (SEM) with 95% CI and Bland-Altman plots. Results. ICC (95% CI) for lumbosacral angle, lordosis, and kyphosis is 0.97 (0.92, 0.99), 0.97 (0.92, 0.99), and 0.99 (0.98, 1.0), respectively. SEM (95% CI) for lumbosacral angle, lordosis, and kyphosis is 0.99° (0.75, 1.44), 1.33° (1.01, 1.94), and 1.23° (0.94, 1.80), respectively. Measurement bias is small. Conclusions. In our sample, the IONmed mobile phone application provides measures highly consistent with the digital inclinometer measures of standing posture. This method offers clinicians a quick, convenient way of identifying alterations in spine alignment which require followup and remediation.