Article
Biotechnology & Applied Microbiology
Miriam Niemeier, Manon Jeschke, Volker Duerr
Summary: The study showed that in insects with disrupted neural information transfer through one connective, temporal inter-leg coordination was significantly reduced, but compensatory changes in spatial coordination occurred if they experienced naturalistic load distribution. While mechanical load transfer could not compensate for lesion-induced effects on temporal inter-leg coordination, significant shifts in touch-down and lift-off positions among legs were observed in free walking insects with disrupted neural information transfer.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Manon K. Schweinfurth, Dylan B. Baldridge, Kyle Finnerty, Josep Call, Gunther K. Knoblich
Summary: Humans, like many other animals, live in groups and coordinate actions with others in social settings. Chimpanzees also spontaneously synchronize their actions with conspecifics while walking together, and this coordination is influenced by social relationships within the group.
Article
Biology
Chanwoo Chun, Tirthabir Biswas, Vikas Bhandawat
Summary: The changes in walking speed in Drosophila are mainly characterized by the modified tripod gait, which only changes marginally with speed. The stiffness of the spring is mainly mediated by the change in tripod shape rather than individual leg stiffness. The variations in kinematics among insects can be explained by the effect of tripod shape on mechanics, and the ARSLIP model can effectively capture these variations.
Article
Zoology
Jasmine A. Nirody
Summary: Studies have found that Drosophila's leg coordination patterns vary smoothly with walking speed, unlike vertebrates. The spectrum of Drosophila's stepping patterns includes all canonical coordination patterns observed during forward walking in insects. Comparative analysis reveals shared functional and morphological features among panarthropods.
INTEGRATIVE AND COMPARATIVE BIOLOGY
(2021)
Article
Psychology, Multidisciplinary
Cenyi Wang, Guodong Wang, Aming Lu, Ying Zhao
Summary: The study utilized a dual-task paradigm to investigate the effects of attentional control on gait and inter-joint coordination, revealing significant differences in performance between the High Attentional Control (HAC) group and the Low Attentional Control (LAC) group. This suggests that the ability of young adults to maintain gait control and modulate inter-joint coordination patterns in response to gait disturbances is influenced by their level of attentional control.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Engineering, Biomedical
Tal Krasovsky, Or Koren, Benedetta Heimler, Noam Galor, Sharon Hassin-Baer, Gabi Zeilig, Meir Plotnik
Summary: This study presents a new algorithm for predicting freezing of gait (FOG) in Parkinson's Disease (PD) based on altered interlimb coordination. The algorithm uses two inertial movement sensors and a wavelet coherence algorithm. Results show that this method can effectively differentiate between FOG and voluntary stops, with high prediction accuracy.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Robotics
Yuchen Wang, Mitsuhiro Hayashibe, Dai Owaki
Summary: Extracting motion information from videos is crucial for understanding the generation mechanisms of animal behavior. This study proposes a method for predicting the whole-body velocity and direction of insect walking using leg joint angles, employing LSTM and HLSTM models.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Article
Biophysics
Gregor Kuntze, Shane Esau, Leticia Janzen, Laura Brunton, Kate Nuique, Elizabeth Condliffe, Carolyn Emery
Summary: This study found an association between the severity of thigh-shank coordination deficits and increasing metabolic demands of walking in youth with CP. CRP may be a clinically useful predictor of metabolic demands in CP walking.
JOURNAL OF BIOMECHANICS
(2021)
Article
Orthopedics
Chi-Wen Lung, Ben-Yi Liau, Joseph A. Peters, Li He, Runnell Townsend, Yih-Kuen Jan
Summary: This study found that brisk walking and slow running speeds cause an increase in muscle fatigue compared to slow walking speed, and the increased muscle fatigue is significantly related to a higher plantar pressure. Walking speed significantly affected leg muscle fatigue, while walking duration did not have a significant impact.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Engineering, Electrical & Electronic
Daniel Alshamaa, Racha Soubra, Aly Chkeir
Summary: This study proposes a radar sensor system for evaluating gait speed in walking tests automatically, involving three phases: automatic distinction of different sections in the test, signal processing to evaluate gait speed, and segmentation of each walk into different zones. The system is automated, efficient, and does not require acceleration and deceleration zones compared to traditional techniques.
IEEE SENSORS JOURNAL
(2021)
Review
Orthopedics
Simone Dorsch, Louise Ada, Tiffany Sorial, Emma Fanayan
Summary: This review found a strong relationship between muscle strength of the affected leg and walking speed after stroke, with little variability across individual muscle groups. However, the level of walking disability does affect this relationship, with more disabled individuals showing a stronger correlation between muscle strength and walking speed.
Article
Computer Science, Artificial Intelligence
Dai Owaki, Shun-ya Horikiri, Jun Nishii, Akio Ishiguro
Summary: This study attempted to improve adaptability and achieve systematic decentralised control for bipedal walking robots by applying the "Tegotae" approach in the design of CPG controllers. The two-dimensional bipedal walking model designed using Tegotae functions performed well in simulations, demonstrating excellent adaptability to various terrains.
FRONTIERS IN NEUROROBOTICS
(2021)
Article
Biochemical Research Methods
Malte Schilling, Holk J. Cruse
Summary: Decentralized control has been successfully applied to the neuroWalknet architecture, allowing for various walking behaviors in insects. Intraleg studies on individual leg function and reflexes fit with the global structure of neuroWalknet. The holistic approach of neuroWalknet provides emergent properties and predictions for biological experiments.
PLOS COMPUTATIONAL BIOLOGY
(2023)
Article
Neurosciences
Yujin Kwon, Lillian K. Chilton, Hoon Kim, Jason R. Franz
Summary: Understanding the effects of prolonged walking on leg muscle activity and vulnerability to balance perturbations is important for developing strategies to reduce walking-related fatigue and maintain independent mobility. This study found that walking for 30 minutes at a comfortable speed led to neuromuscular adaptations indicative of muscle fatigue and an increased susceptibility to balance perturbations. These findings could inform the development of fatigue monitoring systems and walking assistive devices.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2023)
Article
Neurosciences
J. E. M. Scanlon, N. S. J. Jacobsen, M. C. Maack, S. Debener
Summary: Interpersonal behavioral synchrony refers to the temporal coordination of action between individuals. This study used mobile EEG technology to investigate synchronization during gait. The results showed that step synchronization was significantly higher when participants tried to synchronize their steps with the experimenter compared to natural walking. Additionally, alpha-mu and beta rhythms in specific brain regions were suppressed during walking synchrony. The natural and blocked conditions did not show significant differences in behavior or spectral analysis. These findings suggest that intentional synchronization involves systems associated with social interaction and the central motor system.
Article
Zoology
Andy Sombke, Anja E. Klann, Elisabeth Lipke, Harald Wolf
ZOOLOGICAL LETTERS
(2019)
Article
Behavioral Sciences
Sarah Pfeffer, Verena Wahl, Harald Wolf
Article
Biology
Johanna Tross, Harald Wolf, Sarah Elisabeth Pfeffer
Summary: This study analyzed the locomotion characteristics of Cataglyphis bicolor ants and compared them with allometrically similar species, revealing differences in walking speeds among ants of different body sizes. Surprisingly, ants tended to show similar overall locomotion strategies at low walking speeds but significant differences were observed at high walking speeds, especially between C. albicans and C. bicolor.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Biology
Johanna Tross, Harald Wolf, Torben Stemme, Sarah Elisabeth Pfeffer
Summary: This study analyzed the locomotion of the pseudoscorpion Chelifer cancroides during different walking behaviors. The results showed that the pseudoscorpion adopts a stable and coordinated alternating tetrapod gait during forward and backward walking, but no fixed leg coordination during upside-down walking. The highest speeds were observed during backward locomotion, while forward walking had lower speeds.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Biology
Johanna Tross, Harald Wolf, Sarah Elisabeth Pfeffer
Summary: This study investigates the locomotion behavior of different worker subcastes and males in Camponotus fellah ants. The results show that body size and shape have varying effects on locomotion behavior, with minor workers exhibiting the highest relative velocities and males having lower walking speeds.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Food Science & Technology
Hannah Flach, Kristina Geiss, Kim-Andre Lohse, Manuel Feickert, Petra Dietmann, Sarah Pfeffer, Michael Kuehl, Susanne J. Kuehl
Summary: There is growing concern over the harmful effects of pesticides, particularly neonicotinoids like thiacloprid (THD), on natural waters. A study was conducted to investigate the potential impacts of THD on amphibian embryogenesis, as leaching can introduce THD into aquatic environments. The results showed that THD exposure led to negative effects on the embryonic development of X. laevis, including reduced body length, mobility, and impaired cranial and cardiac development. These findings underscore the importance of strict monitoring and regulation of THD levels and applications.
FOOD AND CHEMICAL TOXICOLOGY
(2023)
Review
Behavioral Sciences
Sarah Pfeffer, Harald Wolf