Sains Malaysiana 44(12)(2015): 1745–1750
A Study on Body Movement Analysis by the Foot Slip Pattern in a Fall
(Suatu
Kajian mengenai Analisis Pergerakan Badan melalui Pola Gelinciran Kaki sewaktu
Jatuh)
SEONG-HYUN
KIM
1 & DONG-WOOK KIM*2
1Department of Medical
& Electronic Device, Chungbuk Provincial College, 15 Daehak-gil,
Okcheon-eup, Okcheon-gun, Chungbuk, South Korea
2Division of Biomedical
Engineering and Research Center for Healthcare
& Welfare Instrument for the Aged, Chonbuk National University,
567 Baekje-daero, Deokjin-gu
Jeonju-si, Jeonbuk, South
Korea
Diserahkan: 2 September
2014/Diterima: 17 Ogos 2015
ABSTRACT
A fracture, which mostly results
from a fall, is fatal for the elderly. A fall occurred when a person cannot
maintain the body position. Most falls occurred when a person walks on a
slippery surface or trips over an object on the ground during a gait. Most
people try to avoid falls instinctively and fall when their attempt fails. As
such, this study investigated the difference between two movements- a movement
to avoid falls and a forward-falling movement without a fall-avoiding movement-
by analyzing the body movements of the subjects. A fast-moving fall-guiding
device with a pneumatic actuator was used to guide falls. The movement of the
device could simulate a foot slip that may happen during daily activities. A
three-axis acceleration sensor and a Bluetooth module were used to avoid disturbing
the body movement during a fall as a wire sensor or a movement analysis system
does.
Keywords: Body behavior; fall; fall
detection; foot movement; wireless sensor
ABSTRAK
Patah, yang kebanyakannya akibat
jatuh boleh membawa maut untuk warga tua. Kejatuhan ini berlaku apabila
seseorang tidak dapat mengekalkan kedudukan badan. Kebanyakan kejatuhan berlaku
apabila seseorang berjalan pada permukaan yang licin atau terlanggar objek
sewaktu sedang berjalan. Kebanyakan orang akan cuba untuk mengelak daripada
jatuh dan jatuh apabila cubaan mereka gagal. Oleh yang demikian, kajian ini
mengkaji perbezaan antara dua pergerakan- untuk mengelakkan jatuh dan gerakan
jatuh ke hadapan tanpa gerakan untuk mengelak kejatuhan- dengan menganalisis
pergerakan badan subjek. Alat bantuan untuk mengesan pergerakan kejatuhan
pantas dengan penggerak pneumatik digunakan untuk pemanduan jatuh. Pergerakan
alat tersebut boleh mensimulasikan gelinciran kaki yang berlaku semasa aktiviti
harian. Penderia pecutan tiga-paksi dan modul Bluetooth digunakan untuk
mengelak daripada mengganggu pergerakan badan semasa kejatuhan, seperti
dilakukan penderia wayar atau sistem analisis pergerakan.
Kata kunci: Jatuh; penderia tanpa wayar; pengesan kejatuhan;
pergerakan kaki; perilaku badan
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*Pengarang untuk surat-menyurat; email:
biomed@jbnu.ac.kr
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