ArticleFrontiers in aging neuroscience2022
Corticospinal drive is associated with temporal walking adaptation in both healthy young and older adults.
Article in Frontiers in aging neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Gait speed-related changes in electrocortical activity in younger and older adults.Journal of neurophysiology · 2025Article
- Exploring age-related differences in the relationship between spatial and temporal contributions to step length asymmetry during split-belt adaptation.Experimental brain research · 2024Article
- Reduced corticospinal drive and inflexible temporal adaptation during visually guided walking in older adults.Journal of neurophysiology · 2023Article
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Authors and funding
2 authors.
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Abstract
Healthy aging is associated with reduced corticospinal drive to leg muscles during walking. Older adults also exhibit slower or reduced gait adaptation compared to young adults. The objective of this study was to determine age-related changes in the contribution of corticospinal drive to ankle muscles during walking adaptation. Electromyography (EMG) from the tibialis anterior (TA), soleus (SOL), medial, and lateral gastrocnemius (MGAS, LGAS) were recorded from 20 healthy young adults and 19 healthy older adults while they adapted walking on a split-belt treadmill. We quantified EMG-EMG coherence in the beta-gamma (15-45 Hz) and alpha-band (8-15 Hz) frequencies. Young adults demonstrated higher coherence in both the beta-gamma band coherence and alpha band coherence, although effect sizes were greater in the beta-gamma frequency. The results showed that slow leg TA-TA coherence in the beta-gamma band was the strongest predictor of early adaptation in double support time. In contrast, early adaptation in step length symmetry was predicted by age group alone. These findings suggest an important role of corticospinal drive in adapting interlimb timing during walking in both young and older adults.
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