Abstract
The purpose of this study was to understand the influence of various information acquisition strategies on foot proprioception and obstacle avoidance in people with low vision. Ten adult males (41.0 ± 7.1 years) with pigmentary retinal degeneration were recruited for this study. Participants acquired obstacle information (obstacle height: 4 cm and 15 cm) through three different strategies, namely, front (A), downward (B), and tactile (C). Subsequently, the participants performed two different tasks; Task 1: After identification of the obstacles, the participants reproduced the obstacle height by lifting their foot while standing still (10 times). Task 2: Following the acquisition of the obstacle information through conditions B and C, participants performed obstacle step-over from a standing position. In task 1, condition B showed significantly higher toe-rise and coefficient of variance in toe-rise (p < 0.05) than in conditions A and C, which both displayed similar toe-rise. Likewise, in task 2, the highest points of the leading and trailing feet while stepping over the obstacle were significantly higher (p < 0.05) in condition B than in condition C. Additionally, the coefficient of effort in condition B was significantly larger (p < 0.05) than that of condition C. These results suggest that differences in information acquisition strategies have an impact on the foot trajectory during obstacle step-over. Out of the three methods used in this study, information acquisition through the tactile sense may be the best obstacle avoidance feedback method for people with low vision.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume II |
| Subtitle of host publication | Safety and Health, Slips, Trips and Falls |
| Editors | Yushi Fujita, Sebastiano Bagnara, Thomas Alexander, Riccardo Tartaglia, Sara Albolino |
| Publisher | Springer Verlag |
| Pages | 786-790 |
| Number of pages | 5 |
| ISBN (Print) | 9783319960883 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
| Event | 20th Congress of the International Ergonomics Association, IEA 2018 - Florence, Italy Duration: Aug 26 2018 → Aug 30 2018 |
Publication series
| Name | Advances in Intelligent Systems and Computing |
|---|---|
| Volume | 819 |
| ISSN (Print) | 2194-5357 |
Other
| Other | 20th Congress of the International Ergonomics Association, IEA 2018 |
|---|---|
| Country | Italy |
| City | Florence |
| Period | 8/26/18 → 8/30/18 |
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All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Computer Science(all)
Cite this
The Influence of Information Acquisition Strategies on Foot Proprioception and Obstacle Avoidance Pattern in People with Low Vision. / Uno, Tadashi; Loh, Ping Yeap; Muraki, Satoshi.
Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume II: Safety and Health, Slips, Trips and Falls. ed. / Yushi Fujita; Sebastiano Bagnara; Thomas Alexander; Riccardo Tartaglia; Sara Albolino. Springer Verlag, 2019. p. 786-790 (Advances in Intelligent Systems and Computing; Vol. 819).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The Influence of Information Acquisition Strategies on Foot Proprioception and Obstacle Avoidance Pattern in People with Low Vision
AU - Uno, Tadashi
AU - Loh, Ping Yeap
AU - Muraki, Satoshi
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The purpose of this study was to understand the influence of various information acquisition strategies on foot proprioception and obstacle avoidance in people with low vision. Ten adult males (41.0 ± 7.1 years) with pigmentary retinal degeneration were recruited for this study. Participants acquired obstacle information (obstacle height: 4 cm and 15 cm) through three different strategies, namely, front (A), downward (B), and tactile (C). Subsequently, the participants performed two different tasks; Task 1: After identification of the obstacles, the participants reproduced the obstacle height by lifting their foot while standing still (10 times). Task 2: Following the acquisition of the obstacle information through conditions B and C, participants performed obstacle step-over from a standing position. In task 1, condition B showed significantly higher toe-rise and coefficient of variance in toe-rise (p < 0.05) than in conditions A and C, which both displayed similar toe-rise. Likewise, in task 2, the highest points of the leading and trailing feet while stepping over the obstacle were significantly higher (p < 0.05) in condition B than in condition C. Additionally, the coefficient of effort in condition B was significantly larger (p < 0.05) than that of condition C. These results suggest that differences in information acquisition strategies have an impact on the foot trajectory during obstacle step-over. Out of the three methods used in this study, information acquisition through the tactile sense may be the best obstacle avoidance feedback method for people with low vision.
AB - The purpose of this study was to understand the influence of various information acquisition strategies on foot proprioception and obstacle avoidance in people with low vision. Ten adult males (41.0 ± 7.1 years) with pigmentary retinal degeneration were recruited for this study. Participants acquired obstacle information (obstacle height: 4 cm and 15 cm) through three different strategies, namely, front (A), downward (B), and tactile (C). Subsequently, the participants performed two different tasks; Task 1: After identification of the obstacles, the participants reproduced the obstacle height by lifting their foot while standing still (10 times). Task 2: Following the acquisition of the obstacle information through conditions B and C, participants performed obstacle step-over from a standing position. In task 1, condition B showed significantly higher toe-rise and coefficient of variance in toe-rise (p < 0.05) than in conditions A and C, which both displayed similar toe-rise. Likewise, in task 2, the highest points of the leading and trailing feet while stepping over the obstacle were significantly higher (p < 0.05) in condition B than in condition C. Additionally, the coefficient of effort in condition B was significantly larger (p < 0.05) than that of condition C. These results suggest that differences in information acquisition strategies have an impact on the foot trajectory during obstacle step-over. Out of the three methods used in this study, information acquisition through the tactile sense may be the best obstacle avoidance feedback method for people with low vision.
UR - http://www.scopus.com/inward/record.url?scp=85051777974&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051777974&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-96089-0_86
DO - 10.1007/978-3-319-96089-0_86
M3 - Conference contribution
AN - SCOPUS:85051777974
SN - 9783319960883
T3 - Advances in Intelligent Systems and Computing
SP - 786
EP - 790
BT - Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume II
A2 - Fujita, Yushi
A2 - Bagnara, Sebastiano
A2 - Alexander, Thomas
A2 - Tartaglia, Riccardo
A2 - Albolino, Sara
PB - Springer Verlag
ER -