Age-related differences in muscle co-activation during locomotion andtheir relationship with gait speed: a pilot study

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/474366.do
DOI
10.1186/s12877-017-0417-4
Title
Age-related differences in muscle co-activation during locomotion andtheir relationship with gait speed: a pilot study
Description
This study was supported by an NRF grant funded by the government ofKorea (MSIP) (NRF-2014R1A2A1A01005128) and the Clinical Medical ResearchCenter at Samsung Medical Center (PHO0141081).
abstract
Background: Muscle co-activation plays an important role in enhancing joint stability for movement regulation during motor learning activities. In normal aging, greater muscle co-activation is induced during gait in elderly adults. This study investigated age-related changes in muscle co-activation and spatio-temporal parameters during gait and identified the relationship between muscle co-activation and gait speed.
Methods: A total of 46 adult volunteers participated in this study in three age groups (15 young adults [8 males, 7 females; age, 24.27 +/- 2.71], 15 middle-aged adults [8 males, 7 females; age, 53.71 +/- 2.52], and 16 elderly adults [7 males, 9 females; age, 76.88 +/- 3.48]). All participants underwent locomotion analysis using a Three-dimensional motion analysis system and 12-channel dynamic electromyography.
Results: The elderly adults showed significantly higher co-activation than the young and middle-aged adults during gait (p < 0.05). In contrast, elderly adults showed significantly lower trunk co-activation than the young and middle-aged adults (p < 0.05). Muscle co-activation was significantly correlated with gait speed by aging. Muscle co-activation of the trunk showed a significant positive correlation with gait speed based on age. However, muscle co-activation of the lower extremity showed a significant negative correlation with gait speed based on age.
Conclusion: This finding demonstrated that less muscle co-activation of the trunk was related to locomotive instability in elderly adults. Therefore, clarification of the relationship between trunk co-activation and locomotor instability will be helpful for developing optimal rehabilitation of elderly people to prevent fall.
provenance
Made available in Cube on 2018-09-28T10:44:10Z (GMT). No. of bitstreams: 0
language
English
author
Lee, Hwang-Jae
Chang, Won Hyuk
Choi, Byung-Ok
Ryu, Gyu-Ha
Kim, Yun-Hee
accessioned
2018-09-28T10:44:10Z
available
2018-09-28T10:44:10Z
issued
2017
citation
BMC GERIATRICS(17)
issn
1471-2318
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/474366.do
Funder
미래창조과학부
Funding Program
개인연구지원
Project ID
1711037401
Jurisdiction
Rep.of Korea
Project Name
Investigation for Individualized Noninvasive Neuromodulation in Neurorehabilitation of Brain Disease
rights
openAccess
subject
Aging
Co-activation
Electromyography
Gait speed
Stability
Locomotion
type
article


Files in This Item

There are no attached files.