Sinusoidal Optic Flow Perturbations Reduce Transient but Not Continuous Postural Stability: A Virtual Reality-Based Study

Ketterer, Jakob; Ringhof, Steffen; Gehring, Dominic; Gollhofer, Albert

doi:10.3389/fphys.2022.803185

Cited by 6 publications

(2 citation statements)

References 55 publications

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“…This means that it enables training under conflicting sensorimotor stimulation that creates additional demands on sensory reweighting and balance control. The results of the study [26] allow us to recommend the use of VR to assess adaptation to balance changes.…”

Section: Sensory Integration Study For Posture and Balance Controlmentioning

confidence: 90%

Sensory integration research: priority scientific directions based on the analysis of Web of Science Core Collection resources

Podrihalo,

Jagiello,

Xiaohong

et al. 2023

PES

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Background and Study Aim. Monitoring the condition of athletes is one of the leading tasks in sports science. Predicting success and skill growth is an integral part of monitoring. The fulfillment of this task requires the use of modern methods and the sensory integration analysis occupies an important place. The purpose of this article is to analyze publications on sensory integration and identify priority research areas in this field. Material and Methods. The bibliometric database Web of Science Core Collection (WoS) was analyzed. 388 sources that met the search criteria for 2013-2023 were selected for primary analysis. Bibliometric methods were used for processing the obtained information. The program VOSviewer 1.6.18 was used for keyword analysis and direct citation analysis with the construction of bibliometric maps, visualization of cluster density, and weight – citations. Results. The leading publication categories in WoS were Neurosciences, Sport Sciences, Psychology, Psychology Experimental, Physiology, Rehabilitation. The distribution of publications by years was fairly evenly. Most publications were related to Germany and the USA. The most frequent institutions were German Sport University Cologne, Universidade de Sao Paulo, Shanghai University of Sport, Institute National de la Sante et de la Recherche Medicale Inserm, University of Freiburg. The most cited authors were identified. The constructed bibliometric maps allowed us to identify the leading thematic areas of research and current research directions in the field. The two most important clusters were identified. The largest cluster reflects research on balance and posture and the use of special exercises for rehabilitation in different population groups. The second cluster includes the most significant keyword in the whole map – "sensorimotor integration". The works reflect studies of sensorimotor integration, the study of movement features, and coordination and control of movement at different levels. Conclusions. The conducted bibliometric analysis of publications confirms the relevance of sensorimotor integration. A stable interest in this problem has been determined. Research in this area has neurophysiological, sports-recreational, and medical-rehabilitation directions. Neurophysiological research is aimed at analyzing balance and equilibrium and the application of various tests and functional samples. The sport context studies sensory integration in different sports. Recreational publications have investigated sensory integration as a criterion of health. The therapeutic and rehabilitation focus explores the use of sensory integration as a criterion for treatment and rehabilitation. A characteristic feature is the intersection of these directions. There is a lack of studies devoted to sensory integration in sport dancing. There is a lack of studies aimed at studying the psychophysiological state. These types of research should be assessed as relevant.

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Section: Sensory Integration Study For Posture and Balance Controlmentioning

confidence: 90%

Sensory integration research: priority scientific directions based on the analysis of Web of Science Core Collection resources

Podrihalo,

Jagiello,

Xiaohong

et al. 2023

PES

View full text Add to dashboard Cite

show abstract

“…Therefore, the proposed method introduces a dynamic sine perturbation strategy to improve the position update formula of the discoverer. The discoverer can traverse all points on the sine function, that is, the entire unit circle, transforming the search problem in space into a search for circles (Ketterer et al, 2022). At the same time, the golden ratio coefficient is introduced in the search process to achieve a more flexible search step size for discoverers, balancing the needs of global search in the early stage and local search in the later stage.…”

Section: Improved Squirrel Search Algorithmmentioning

confidence: 99%

A Fault Recovery Method for Distribution Networks With Distributed Power Sources Based on 5G Smart Terminal

Guo,

Tuxun

2024

International Journal of Swarm Intelligence Research

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Firstly, a smart terminal is designed based on 5G communication technology, which is embedded with various protection measurement devices to form a 5G smart terminal. A distributed control model for the distribution network is constructed based on 5G smart terminals, and an objective function is designed taking into account factors such as restoring important loads, surplus power supply in the distribution network, network losses, and the number of switch actions. Finally, the Sparrow Search Algorithm (SSA) is improved using elite reverse learning strategy and dynamic sine perturbation strategy, and it is used to solve the objective function. Based on the IEEE33 distribution network node system, experimental tests are conducted, and the results show that the average delay of 5G smart terminals is about 30ms. Taking 14:00 as an example, the proposed method achieves network loss, number of switch actions, recovered important load power, and power supply surplus of 46.39 kW, 3 times, 185.65 kW, 240.28 kW, respectively. The fault recovery effect of the distribution network is ideal.

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Effects of balance training with visual input manipulations on balance performance and sensory integration in healthy young adults: a randomized controlled trial

Ketterer,

Gollhofer,

Ringhof

et al. 2024

Sci Rep

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Although balance training can improve balance across various populations, the underlying mechanisms, such as how balance training may alter sensory integration, remain unclear. This study examined the effects of balance training with visual input manipulations provided by virtual reality versus conventional balance training on measures of postural sway and sensory integration during balance control. Twenty-two healthy young adults were randomly allocated into a balance training group (BT) or a balance training with virtual reality group (BT + VR). The BT received traditional balance training, while the BT + VR additionally received visual manipulations during the 4-week balance training to elicit sensory conflicts. Static balance was measured in the form of center of pressure (COP) sway speed in trained (eyes open) and untrained (eyes closed) balance conditions. A model-based analysis quantified the sensory integration and feedback characteristics of the balance control mechanism. Herein, the visual weight quantifies the contribution of visual orientation information to balance while the proportional and derivative feedback loop-gains correct for deviations from the desired angular position and angular velocity, respectively. Significant main time effects were observed for the visual sensory contribution to balance (p = 0.002, $$\:{\eta\:}_{p}^{2}$$ = 0.41) and for the derivative feedback loop-gain (p = 0.011, $$\:{\eta\:}_{p}^{2}$$ = 0.29). Significant group-by-time interactions were observed for COP sway speed in the untrained task (p = 0.023, $$\:{\eta\:}_{p}^{2}$$ = 0.23) in favor of BT + VR and in the proportional feedback loop-gain, with reductions only in the BT + VR group (p = 0.043, $$\:{\eta\:}_{p}^{2}$$ = 0.2). BT + VR resulted in larger performance improvements compared with traditional BT in untrained tasks, most likely due to reduced reliance on visual information. This suggests that the systematic modulation of sensory inputs leads to enhanced capacity for motor adaptation in balance training.

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Sinusoidal Optic Flow Perturbations Reduce Transient but Not Continuous Postural Stability: A Virtual Reality-Based Study

Cited by 6 publications

References 55 publications

Sensory integration research: priority scientific directions based on the analysis of Web of Science Core Collection resources

Sensory integration research: priority scientific directions based on the analysis of Web of Science Core Collection resources

A Fault Recovery Method for Distribution Networks With Distributed Power Sources Based on 5G Smart Terminal

Effects of balance training with visual input manipulations on balance performance and sensory integration in healthy young adults: a randomized controlled trial

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