ArticleScientific reports2017
Intermittent muscle activity in the feedback loop of postural control system during natural quiet standing.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Trial
- Effect of Dual-task Standing on prefrontal-motor Cortex Activation and postural-related Muscle Activity between Young and Older Adults.Brain topography · 2025Article
- Analysis of Connectivity in Electromyography Signals to Examine Neural Correlations in the Activation of Lower Leg Muscles for Postural Stability: A Pilot Study.Bioengineering (Basel, Switzerland) · 2025Article
- Right-left sEMG burst synchronization of the lumbar erector spinae muscles of seated violin players.Scientific reports · 2024Article
- How the brain can be trained to achieve an intermittent control strategy for stabilizing quiet stance by means of reinforcement learning.Biological cybernetics · 2024Article
- Assessing the influence of cognitive response conflict on balance control: an event-related approach using response-aligned force-plate time series data.Psychological research · 2023Article
- Vertical ground reaction force oscillation during standing on hard and compliant surfaces: The "postural rhythm".Frontiers in neurology · 2022Article
- Intra- and Intermuscular Coherence and Body Acceleration Control in Older Adults during Bipedal Stance.Geriatrics (Basel, Switzerland) · 2021Article
- State-space intermittent feedback stabilization of a dual balancing task.Scientific reports · 2020Article
- Surface EMG in Clinical Assessment and Neurorehabilitation: Barriers Limiting Its Use.Frontiers in neurology · 2020Article
- Article
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Authors and funding
3 authors.
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Abstract
The origin of continual body oscillation during quiet standing is a neural-muscular-skeletal closed feedback loop system that includes insufficient joint stiffness and a time delay. Thus, muscle activity and joint oscillations are nonlinear during quiet standing, making it difficult to demonstrate the muscular-skeletal relationship experimentally. Here we experimentally revealed this relationship using intermittent control theory, in which non-actuation works to stabilize the skeletal system towards equilibrium. We found that leg muscles were activated/inactivated when the state point was located in the opposite/same direction as the direction of anatomical action, which was associated with joint torque actuating the body towards equilibrium. The derivative values of stability index defined in the phase space approximately 200 ms before muscle inactivation were also larger than those before activation for some muscles. These results indicate that bipedal standing might be achieved by monitoring the rate of change of stability/instability components and generating joint torque to stabilize the body. In conclusion, muscles are likely to activate in an event-driven manner during quiet standing and a possible metric for on/off switching is SI dot, and our methodology of EMG processing could allows us to extract such event-driven intermittent muscle activities.
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