A novel iPhone App for measuring ankle dorsiflexion range of motion
Authors: Alejandro Muñoz Moreno
Keywords: Ankle. Dorsiflexion. Injuries. Inclinometer
Abstract : Ankle dorsiflexion range-of-motion (ADRM) is required in daily activities such as walking, up and down stairs and also during an sports actions like sprinting, running and jumping (Calatayud et al., 2015). In addition ADRM has been associated with several pathologies (e.g ankle injuries) (Youdas, McLean, Krause, & Hollman, 2009) and biomechanical deficits during closed chain exercises. (Bell, Padua, & Clark, 2008). The aim of our study was to compare a novel Iphone App “Dorsiflex” (DORS) with an inclinometer (INCL) that is commonly used for measuring ankle dorsiflexion range-of-motion
02-05-2018
Alejandro Muñoz Moreno
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| Citation: Alejandro Muñoz Moreno. A novel iPhone App for measuring ankle dorsiflexion range of motion. https://doi.org/10.24175/sbd.2018.000002 |
| Received: May 02, 2018 Accepted: May 07, 2018 Published: May 07, 2018 |
| Copyright: © 2018 Alejandro Muñoz Moreno. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC), which allows, distribution, reproduction in any medium, provided the original author and source are credited and non-commercial use. |
| Funding: I certify that no funding has been received for the conduct of this study and/or preparation of this manuscript. |
| Conflicts of Interest: I have no conflicts of interest to declare |
A novel Iphone App for measuring ankle dorsiflexion range of motion
A Muñoz1, V Sánchez-Migallón1-2, A López-Samanes1-2, A Navandar3.
1Faculty of Physical Activity and Sports Sciences, Francisco de Vitoria University, 2Faculty of Health Sciences, Francisco de Vitoria University,3Sports Department, Universidad Politécnica de Madrid.
Key Words: Ankle. Dorsiflexion. Injuries. Inclinometer.
Introduction
Ankle dorsiflexion range-of-motion (ADRM) is required in daily activities such as walking, up and down stairs and also during an sports actions like sprinting, running and jumping (Calatayud et al., 2015). In addition ADRM has been associated with several pathologies (e.g ankle injuries) (Youdas, McLean, Krause, & Hollman, 2009) and biomechanical deficits during closed chain exercises. (Bell, Padua, & Clark, 2008). The aim of our study was to compare a novel Iphone App "Dorsiflex" (DORS) with an inclinometer (INCL) that is commonly used for measuring ankle dorsiflexion range-of-motion.
Methods
Thirty-one healthy subjects (24.4 ± 6.0 years) (mean + SD) participated in the study. Subjects were randomly divided into two groups undergoing a ADRM test battery measurement consisted in Dorsiflex (Apple, Inc, USA)-Inclinometer (Isomed, Portland, Oregon) or Inclinometer-Dorsiflex order, respectively. ADRM were measured in the dominant and non-dominant leg. The study protocol was approved by Francisco de Vitoria Ethics Committee. Written informed consent was obtained from each participant before participation.
Results
Leg values obtained with INCL were 45.13 ± 5.45 º and 44.53± 5.39º dominant and non-dominant leg respectively (mean+SD). Leg values with DORS were 42.58 ± 5.40 º and 40.42± 8.29º dominant and non-dominant leg respectively. Correlations reached statistical significances between dominant leg (r=0.672, P=<0.001) and non-dominant leg (r=0.471, P=0.008) comparing INCL against DORS.
Application-Conclusions
The Iphone App "Dorsiflex" is an useful tool for measuring ankle dorsiflexion range-of-motion, due to the low cost that represents against other expensive measuring instruments (e.g. inclinometer).
References
Bell, D. R., Padua, D. A., & Clark, M. A. (2008). Muscle strength and flexibility characteristics of people displaying excessive medial knee displacement. Arch Phys Med Rehabil, 89(7), 1323-1328. doi:10.1016/j.apmr.2007.11.048.
Calatayud, J., Martin, F., Gargallo, P., Garcia-Redondo, J., Colado, J. C., & Marin, P. J. (2015). The validity and reliability of a new instrumented device for measuring ankle dorsiflexion range of motion. Int J Sports Phys Ther, 10(2), 197-202.
Youdas, J. W., McLean, T. J., Krause, D. A., & Hollman, J. H. (2009). Changes in active ankle dorsiflexion range of motion after acute inversion ankle sprain. J Sport Rehabil, 18(3), 358-374.
