Sensors 2013, 13(3), 3527-3529; doi:10.3390/s130303527

Comments and Reply to: Foot Plantar Pressure Measurement System: A Review. Sensors 2012, 12, 9884-9912
Nachiappan Chockalingam 1,*, Aoife Healy 1, Roozbeh Naemi 1, Philip Burgess-Walker 1, Abdul Hadi Abdul Razak 2,3,*, Aladin Zayegh 2, Rezaul K. Begg 4 and Yufridin Wahab 5
Centre for Sport, Health and Exercise Research, Faculty of Health Sciences, Staffordshire University, ST4 2DF, UK; E-Mails: (A.H.); (R.N.); (P.B.-W.)
School of Engineering and Science, Victoria University, Melbourne 3000, Australia; E-Mail:
Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam 40000, Selangor, Malaysia
Institute of Sport, Exercise and Active Living (ISEAL) and School of Sport and Exercise Science (SES), Victoria University, Melbourne 3000, Australia; E-Mail:
Centre for Industrial Collaboration, School of Microelectronic Engineering, Universiti Malaysia Arau, Perlis 02600, Malaysia; E-Mail:
Authors to whom correspondence should be addressed; E-Mails: (N.C.); (A.H.A.R.); Tel.: +44-1782-295-853 (N.C.); Tel.: +61-3-9919-5047 (A.H.A.R.); Fax: +61-3-9919-4908 (A.H.A.R.).
Received: 22 January 2013; in revised form: 18 February 2013 / Accepted: 5 March 2013 /
Published: 13 March 2013


We would like to comment on a recent review article published in Sensors by Razak et al. [1]. The authors provided a review of plantar pressure measurement systems which included the discussion of the recently developed WalkinSense® system. While the authors correctly identified that our group completed research using this system [2], they have inaccurately reported the manufacturer of the system and our research findings.

The authors stated that this system was developed by our group, however, as stated in our article [2], this system was developed by Tomorrow Options Microelectronics (Sheffield, UK). Additionally they stated inaccurately that the WalkinSense® system is similar to the F-Scan® (Tekscan, Boston, MA, USA) hardware and software and that our research concluded that WalkinSense® had a better repeatability when compared to other commercially available systems. Our research [2] clearly concluded that the WalkinSense® system was found to be as repeatable as the F-Scan® system.

There are several papers which outline the existing technologies [3], the protocols used for data collection [4,5] and the repeatability of existing systems [6]. Whilst this paper [1], is mainly intended for a different audience when compared to clinical papers, it is very important that previously published information is carefully considered, critically reviewed and succinctly presented in a review paper.

We felt compelled to write this note so that: (1) it is not misinterpreted that we developed this system and (2) our research findings are not inaccurately reported.


  1. Razak, A.; Zayegh, A.; Begg, R.K.; Wahab, Y. Foot Plantar Pressure Measurement System: A Review. Sensors 2012, 12, 9884–9912.
  2. Healy, A.; Burgess-Walker, P.; Naemi, R.; Chockalingam, N. Repeatability of WalkinSense® in Shoe Pressure Measurement System: A Preliminary study. The Foot 2012, 22, 35–39.
  3. Rosenbaum, D.; Becker, H.P. Review Article: Plantar Pressure Distribution Measurements. Technical Background and Clinical Applications. Foot Ankle Surg. 1997, 3, 1–14.
  4. Bus, S.A; de Lange, A. A. Comparison of the 1-Step, 2-Step, and 3-Step Protocols for Obtaining Barefoot Plantar Pressure Data in the Diabetic Neuropathic Foot. Clin. Biomech. 2005, 20, 892–899.
  5. McPoil, T.G.; Cornwall, M.W.; Dupuis, L.; Cornwell, M. Variability of Plantar Pressure Data. A Comparison of the Two-Step and Midgait Methods. J. Am. Podiatr. Med. Assoc. 1999, 89, 495–501.
  6. Ramanathan, A.K.; Kiran, P.; Arnold, G.P.; Wang, W.; Abboud, R.J. Repeatability of the Pedar-X® in-shoe pressure measuring system. Foot Ankle Surg. 2010, 16, 70–73.
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