Differential effects of concentric and eccentric contractions on the primary motor cortex in healthy young and elderly participants
This study is the first to investigate cortical activity during eccentric lower limb contractions in older adults. The results suggest that eccentric contractions induce greater cortical activation compared to concentric, even in older adults who generally exhibit reduced cortical activity. These findings support the potential of eccentric as an effective intervention to improve motor function and muscle strength in older adults.
Authors
- Julien Lagarde (ORCID: https://orcid.org/0000-0002-2018-261X)
- Alain Varray (ORCID: https://orcid.org/0000-0003-3876-1211)
- Simon Pla (ORCID: https://orcid.org/0000-0001-7117-5420)
- Marion Desachy (ORCID: https://orcid.org/0000-0002-2787-2410)
- Nelly Héraud
Institutions
- Université de Montpellier (FR)
- IMT Mines Alès (FR)
- EuroMov Digital Health in Motion
- Clariant (Switzerland) (CH)
Publication Details
- Journal
- Frontiers in Aging Neuroscience
- Published
- 2025-06-06
- DOI
- https://doi.org/10.3389/fnagi.2025.1553277
- Primary Topic
- Muscle activation and electromyography studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Association Nationale de la Recherche et de la Technologie