Increased Variability in Lower Limb Muscle Activation Is Observed with Increasing Walking Speed in Fall-Risk Older Adults
Yongnam Park, Youngsook Bae, Li-Wei Chou, Jiunn-Horng Kang, Krisna Piravej, Karen Sui Geok Chua · 2024
Read Increased Variability in Lower Limb Muscle Activation Is Observed with Increasing Walking Speed in Fall-Risk Older Adults by Yongnam Park, Youngsook Bae, Li-Wei Chou, Jiunn-Horng Kang, Krisna Piravej, Karen Sui Geok Chua (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11676664.txt.
Description
Yongnam Park and co-authors measure leg muscle patterns in older adults at fall risk in a 2024 study. Three hundred one walkers crossed a lab at their own pace and at set slower and faster speeds while sensors read four leg muscles. The question was whether trouble shows in muscle strength or in its steadiness.
Fall risk walkers fired their calf muscle less and varied every muscle's firing more, even at a comfortable pace. Speeding up widened the variability gap further, while raw activity changed little. The authors argue that steadiness, not strength, is the signal to train: fall prevention should target consistent muscle control as pace changes. The finding reframes screening toward variability measures.
Catalog record
| CREATOR | Yongnam Park, Youngsook Bae, Li-Wei Chou, Jiunn-Horng Kang, Krisna Piravej, Karen Sui Geok Chua |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 29 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |