ArticleJournal of neurophysiology2014
Body stability and muscle and motor cortex activity during walking with wide stance.
Article in Journal of neurophysiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Posture and support geometry, rather than body size, dictate lateral dynamic stability in walking mammalian quadrupeds.bioRxiv : the preprint server for biology · 2026Article
- Role of forelimb morphology in muscle sensorimotor functions during locomotion in the cat.The Journal of physiology · 2025Article
- ROLE OF FORELIMB MORPHOLOGY IN MUSCLE SENSORIMOTOR FUNCTIONS DURING LOCOMOTION IN THE CAT.bioRxiv : the preprint server for biology · 2024Article
- Activity of cat premotor cortex neurons during visually guided stepping.Journal of neurophysiology · 2023Article
- Neuromechanical Strategies for Obstacle Negotiation during Overground Locomotion following Incomplete Spinal Cord Injury in Adult Cats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Article
- Spinal sensorimotor circuits play a prominent role in hindlimb locomotor recovery after staggered thoracic lateral hemisections but cannot restore posture and interlimb coordination during quadrupedal locomotion in adult cats.bioRxiv : the preprint server for biology · 2023Article
- Signals from posterior parietal area 5 to motor cortex during locomotion.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Electrical Stimulation of Distal Tibial Nerve During Stance Phase of Walking May Reverse Effects of Unilateral Paw Pad Anesthesia in the Cat.Motor control · 2023Article
- Modulation of the gait pattern during split-belt locomotion after lateral spinal cord hemisection in adult cats.Journal of neurophysiology · 2022Article
- Control of Forelimb and Hindlimb Movements and Their Coordination during Quadrupedal Locomotion across Speeds in Adult Spinal Cats.Journal of neurotrauma · 2022Article
- Neuronal activity reorganization in motor cortex for successful locomotion after a lesion in the ventrolateral thalamus.Journal of neurophysiology · 2022Article
- Competing Models of Work in Quadrupedal Walking: Center of Mass Work is Insufficient to Explain Stereotypical Gait.Frontiers in bioengineering and biotechnology · 2022Article
- Emergence of Extreme Paw Accelerations During Cat Paw Shaking: Interactions of Spinal Central Pattern Generator, Hindlimb Mechanics and Muscle Length-Depended Feedback.Frontiers in integrative neuroscience · 2022Article
- State- and Condition-Dependent Modulation of the Hindlimb Locomotor Pattern in Intact and Spinal Cats Across Speeds.Frontiers in systems neuroscience · 2022Article
- Control of Mammalian Locomotion by Somatosensory Feedback.Comprehensive Physiology · 2021Article
- Common and distinct muscle synergies during level and slope locomotion in the cat.Journal of neurophysiology · 2021Article
- Amble Gait EEG Points at Complementary Cortical Networks Underlying Stereotypic Multi-Limb Co-ordination.Frontiers in human neuroscience · 2021Article
- Contribution of the ventrolateral thalamus to the locomotion-related activity of motor cortex.Journal of neurophysiology · 2020Article
- Frontal plane dynamics of the centre of mass during quadrupedal locomotion on a split-belt treadmill.Journal of the Royal Society, Interface · 2020Article
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Authors and funding
5 authors.
Funding
Abstract
Biomechanical and neural mechanisms of balance control during walking are still poorly understood. In this study, we examined the body dynamic stability, activity of limb muscles, and activity of motor cortex neurons [primarily pyramidal tract neurons (PTNs)] in the cat during unconstrained walking and walking with a wide base of support (wide-stance walking). By recording three-dimensional full-body kinematics we found for the first time that during unconstrained walking the cat is dynamically unstable in the forward direction during stride phases when only two diagonal limbs support the body. In contrast to standing, an increased lateral between-paw distance during walking dramatically decreased the cat's body dynamic stability in double-support phases and prompted the cat to spend more time in three-legged support phases. Muscles contributing to abduction-adduction actions had higher activity during stance, while flexor muscles had higher activity during swing of wide-stance walking. The overwhelming majority of neurons in layer V of the motor cortex, 82% and 83% in the forelimb and hindlimb representation areas, respectively, were active differently during wide-stance walking compared with unconstrained condition, most often by having a different depth of stride-related frequency modulation along with a different mean discharge rate and/or preferred activity phase. Upon transition from unconstrained to wide-stance walking, proximal limb-related neuronal groups subtly but statistically significantly shifted their activity toward the swing phase, the stride phase where most of body instability occurs during this task. The data suggest that the motor cortex participates in maintenance of body dynamic stability during locomotion.
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