Abstract
Amid trends toward population aging in many developed countries, the number of people requiring nursing care has increased markedly. Slips and falls during ordinary daily activities are a common cause of bone fracture and muscle injury. Several previous studies have analyzed the movements produced by artificially generated slip and fall stimuli, but few have investigated these stimuli directly. We analyzed lower limb motion following a slip and fall stimulus produced using a pulled free-walking system. This consisted of a controllable split belt treadmill, with which a speed difference between the belts could be applied to produce a slipping motion. In two male participants, we induced slip motion by immediately applying acceleration in the sagittal plane direction of the right leg upon contact with the treadmill. Each participant demonstrated a unique recovery method from falling. Additionally, we found that increased stimulation led to faster right foot motion during recovery or a stronger floor reaction force if recovery failed. The results indicated that the transition of the floor reaction force during a fall stimulus correlates with the location of the center of mass and the risk of fall. In future, we plan to test larger samples of young, healthy participants, and to examine at-risk elderly participants.
| Original language | English |
|---|---|
| Title of host publication | 2018 World Automation Congress, WAC 2018 |
| Publisher | IEEE Computer Society |
| Pages | 176-181 |
| Number of pages | 6 |
| ISBN (Print) | 9781532377914 |
| DOIs | |
| Publication status | Published - Aug 8 2018 |
| Event | 2018 World Automation Congress, WAC 2018 - Stevenson, United States Duration: Jun 3 2018 → Jun 6 2018 |
Publication series
| Name | World Automation Congress Proceedings |
|---|---|
| Volume | 2018-June |
| ISSN (Print) | 2154-4824 |
| ISSN (Electronic) | 2154-4832 |
Conference
| Conference | 2018 World Automation Congress, WAC 2018 |
|---|---|
| Country | United States |
| City | Stevenson |
| Period | 6/3/18 → 6/6/18 |
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All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
Cite this
Fall Prevention Analysis during a Fall Stimulus Using the Differential Velocity of a Split Belt Treadmill. / Nakashima, Yasutaka; Ueki, Shintaro; Kobayashi, Taichi; Notsuka, Hiroki; Fukui, Takanori; Yamamoto, Motoji.
2018 World Automation Congress, WAC 2018. IEEE Computer Society, 2018. p. 176-181 8430463 (World Automation Congress Proceedings; Vol. 2018-June).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Fall Prevention Analysis during a Fall Stimulus Using the Differential Velocity of a Split Belt Treadmill
AU - Nakashima, Yasutaka
AU - Ueki, Shintaro
AU - Kobayashi, Taichi
AU - Notsuka, Hiroki
AU - Fukui, Takanori
AU - Yamamoto, Motoji
PY - 2018/8/8
Y1 - 2018/8/8
N2 - Amid trends toward population aging in many developed countries, the number of people requiring nursing care has increased markedly. Slips and falls during ordinary daily activities are a common cause of bone fracture and muscle injury. Several previous studies have analyzed the movements produced by artificially generated slip and fall stimuli, but few have investigated these stimuli directly. We analyzed lower limb motion following a slip and fall stimulus produced using a pulled free-walking system. This consisted of a controllable split belt treadmill, with which a speed difference between the belts could be applied to produce a slipping motion. In two male participants, we induced slip motion by immediately applying acceleration in the sagittal plane direction of the right leg upon contact with the treadmill. Each participant demonstrated a unique recovery method from falling. Additionally, we found that increased stimulation led to faster right foot motion during recovery or a stronger floor reaction force if recovery failed. The results indicated that the transition of the floor reaction force during a fall stimulus correlates with the location of the center of mass and the risk of fall. In future, we plan to test larger samples of young, healthy participants, and to examine at-risk elderly participants.
AB - Amid trends toward population aging in many developed countries, the number of people requiring nursing care has increased markedly. Slips and falls during ordinary daily activities are a common cause of bone fracture and muscle injury. Several previous studies have analyzed the movements produced by artificially generated slip and fall stimuli, but few have investigated these stimuli directly. We analyzed lower limb motion following a slip and fall stimulus produced using a pulled free-walking system. This consisted of a controllable split belt treadmill, with which a speed difference between the belts could be applied to produce a slipping motion. In two male participants, we induced slip motion by immediately applying acceleration in the sagittal plane direction of the right leg upon contact with the treadmill. Each participant demonstrated a unique recovery method from falling. Additionally, we found that increased stimulation led to faster right foot motion during recovery or a stronger floor reaction force if recovery failed. The results indicated that the transition of the floor reaction force during a fall stimulus correlates with the location of the center of mass and the risk of fall. In future, we plan to test larger samples of young, healthy participants, and to examine at-risk elderly participants.
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U2 - 10.23919/WAC.2018.8430463
DO - 10.23919/WAC.2018.8430463
M3 - Conference contribution
SN - 9781532377914
T3 - World Automation Congress Proceedings
SP - 176
EP - 181
BT - 2018 World Automation Congress, WAC 2018
PB - IEEE Computer Society
ER -