PMID- 36275397 OWN - NLM STAT- MEDLINE DCOM- 20221025 LR - 20221123 IS - 2040-2309 (Electronic) IS - 2040-2295 (Print) IS - 2040-2295 (Linking) VI - 2022 DP - 2022 TI - Quantification of Gait Stability During Incline and Decline Walking: The Responses of Required Coefficient of Friction and Dynamic Postural Index. PG - 7716821 LID - 10.1155/2022/7716821 [doi] LID - 7716821 AB - This study aims to investigate the gait stability response during incline and decline walking for various surface inclination angles in terms of the required coefficient of friction (RCOF), postural stability index (PSI), and center of pressure (COP)-center of mass (COM) distance. A customized platform with different surface inclinations (0 degrees , 5 degrees , 7.5 degrees , and 10 degrees ) was designed. Twenty-three male volunteers participated by walking on an inclined platform for each inclination. The process was then repeated for declined platform as well. Qualysis motion capture system was used to capture and collect the trajectories motion of ten reflective markers that attached to the subjects before being exported to a visual three-dimensional (3D) software and executed in Matlab to obtain the RCOF, PSI, as well as dynamic PSI (DPSI) and COP-COM distance parameters. According to the result for incline walking, during initial contact, the RCOF was not affected to inclination. However, it was affected during peak ground reaction force (GRF) starting at 7.5 degrees towards 10 degrees for both walking conditions. The most affected PSI was found at anterior-posterior PSI (APSI) even as low as 5 degrees inclination during both incline and decline walking. On the other hand, DPSI was not affected during both walking conditions. Furthermore, COP-COM distance was most affected during decline walking in anterior-posterior direction. The findings of this research indicate that in order to decrease the risk of falling and manage the inclination demand, a suitable walking strategy and improved safety measures should be applied during slope walking, particularly for decline and anterior-posterior orientations. This study also provides additional understanding on the best incline walking technique for secure and practical incline locomotion. CI - Copyright (c) 2022 Noor Arifah Azwani Abdul Yamin et al. FAU - Abdul Yamin, Noor Arifah Azwani AU - Abdul Yamin NAA AD - Faculty of Electronic Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. FAU - Basaruddin, Khairul Salleh AU - Basaruddin KS AUID- ORCID: 0000-0002-9806-3565 AD - Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. AD - Medical Devices and Health Sciences, Sports Engineering Research Center (SERC), Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. FAU - Abu Bakar, Shahriman AU - Abu Bakar S AUID- ORCID: 0000-0002-4834-4828 AD - Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. AD - Center of Excellence Automotive & Motorsport (MoTECH), Universiti Malaysia Perlis 02600 Pauh Putra, Perlis, Malaysia. FAU - Salleh, Ahmad Faizal AU - Salleh AF AD - Faculty of Electronic Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. AD - Medical Devices and Health Sciences, Sports Engineering Research Center (SERC), Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. FAU - Mat Som, Mohd Hanafi AU - Mat Som MH AUID- ORCID: 0000-0001-8953-2035 AD - Faculty of Electronic Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. AD - Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. FAU - Yazid, Haniza AU - Yazid H AUID- ORCID: 0000-0003-1760-2473 AD - Faculty of Electronic Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. AD - Faculty of Mechanical Engineering and Technology, Universiti Malaysia Perlis, Pauh Putra 02600, Perlis, Malaysia. FAU - Hoang, Tien-Dat AU - Hoang TD AUID- ORCID: 0000-0002-7319-4024 AD - Faculty of International Training, Thai Nguyen University of Technology, Thai Nguyen, Vietnam. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221012 PL - England TA - J Healthc Eng JT - Journal of healthcare engineering JID - 101528166 SB - IM MH - Male MH - Humans MH - Friction MH - *Postural Balance/physiology MH - *Gait/physiology MH - Walking/physiology MH - Accidental Falls/prevention & control MH - Biomechanical Phenomena PMC - PMC9581656 COIS- The authors declare that they have no conflicts of interest. EDAT- 2022/10/25 06:00 MHDA- 2022/10/26 06:00 PMCR- 2022/10/12 CRDT- 2022/10/24 03:57 PHST- 2022/03/22 00:00 [received] PHST- 2022/09/13 00:00 [revised] PHST- 2022/09/29 00:00 [accepted] PHST- 2022/10/24 03:57 [entrez] PHST- 2022/10/25 06:00 [pubmed] PHST- 2022/10/26 06:00 [medline] PHST- 2022/10/12 00:00 [pmc-release] AID - 10.1155/2022/7716821 [doi] PST - epublish SO - J Healthc Eng. 2022 Oct 12;2022:7716821. doi: 10.1155/2022/7716821. eCollection 2022.