Do Older Adults and Those Recovered from Low Back Injury Share Common Muscle Activation Adaptations?
Saved in:
| Title: | Do Older Adults and Those Recovered from Low Back Injury Share Common Muscle Activation Adaptations? |
|---|---|
| Authors: | Quirk, D. Adam, Hubley-Kozey, Cheryl L. |
| Source: | Journal of Motor Behavior. 2019, Vol. 51 Issue 2, p222-238. 17p. 1 Diagram, 6 Charts, 4 Graphs. |
| Subjects: | Older people, Lumbar pain, Electromyography, Aging, Musculoskeletal system, Torso physiology, Skeletal muscle physiology, Physiological adaptation, Back injuries, Comparative studies, Research methodology, Medical cooperation, Research, Evaluation research, Case-control method |
| Abstract: | Theoretical models suggest trunk muscle activation compensates for spinal systems impairments. The purpose of this study was to determine if two populations (older adults and those recovered from a lower back injury (rLBI)) with spinal system impairments have similar muscle activation patterns to each other, but differ from controls. Trunk electromyograms collected from 12 older adults, 16 rLBI, and 19 controls during two dynamic tasks showed that older adults and rLBI had higher activation amplitudes, sustained temporal and more synergistic activation relative to controls. However, differences found between older adults and rLBI suggest that spinal system impairments differed between groups or that recent pain (rLBI) uniquely influenced muscle activation. This sheds light on our understanding of the relationship between spinal system impairments and muscle activation. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Motor Behavior is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Theoretical models suggest trunk muscle activation compensates for spinal systems impairments. The purpose of this study was to determine if two populations (older adults and those recovered from a lower back injury (rLBI)) with spinal system impairments have similar muscle activation patterns to each other, but differ from controls. Trunk electromyograms collected from 12 older adults, 16 rLBI, and 19 controls during two dynamic tasks showed that older adults and rLBI had higher activation amplitudes, sustained temporal and more synergistic activation relative to controls. However, differences found between older adults and rLBI suggest that spinal system impairments differed between groups or that recent pain (rLBI) uniquely influenced muscle activation. This sheds light on our understanding of the relationship between spinal system impairments and muscle activation. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 00222895 |
| DOI: | 10.1080/00222895.2018.1458280 |
