Two Indian Families with Quadrupedal Locomotion Resembling Uner Tan Syndrome: A Video Document
Sign Up to like & getrecommendations! Published in 2017 at "Movement Disorders Clinical Practice"
DOI: 10.1002/mdc3.12380
Abstract: Almost a decade ago, Uner Tan discovered and described a novel genetic syndrome characterized by habitual quadrupedalism, impaired intelligence, primitive language, and no conscious intelligence. The cases described by him had quadrupedal locomotion (Q/L) using… read more here.
Keywords: tan syndrome; locomotion; quadrupedal locomotion; uner tan ... See more keywords
Control of fore- and hindlimb movements and their coordination during quadrupedal locomotion across speeds in adult spinal cats.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of neurotrauma"
DOI: 10.1089/neu.2022.0042
Abstract: Coordinating the four limbs is critical for terrestrial mammalian locomotion. Thoracic spinal transection abolishes neural communication between the brain and spinal networks controlling hindlimb/leg movements. Several studies have shown that animal models of spinal transection… read more here.
Keywords: locomotion; coordination; spinal transection; quadrupedal locomotion ... See more keywords
Robust Stabilization of Periodic Gaits for Quadrupedal Locomotion via QP-Based Virtual Constraint Controllers
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2021.3133198
Abstract: This letter develops, theoretically justifies, and experimentally implements an optimization-based nonlinear control methodology for stabilizing quadrupedal locomotion. This framework utilizes virtual constraints and control Lyapunov functions (CLFs) in the context of quadratic programs (QPs) to… read more here.
Keywords: stabilization periodic; periodic gaits; quadrupedal locomotion; robust stabilization ... See more keywords
Momentum-Aware Trajectory Optimization and Control for Agile Quadrupedal Locomotion
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Robotics and Automation Letters"
DOI: 10.1109/lra.2022.3185374
Abstract: In this letter, we present a versatile hierarchical offline planning algorithm, along with an online control pipeline for agile quadrupedal locomotion. Our offline planner alternates between optimizing centroidal dynamics for a reduced-order model and whole-body… read more here.
Keywords: agile quadrupedal; trajectory optimization; control; optimization ... See more keywords
Learning quadrupedal locomotion on deformable terrain
Sign Up to like & getrecommendations! Published in 2023 at "Science Robotics"
DOI: 10.1126/scirobotics.ade2256
Abstract: Simulation-based reinforcement learning approaches are leading the next innovations in legged robot control. However, the resulting control policies are still not applicable on soft and deformable terrains, especially at high speed. The primary reason is… read more here.
Keywords: locomotion; deformable terrains; reinforcement learning; terrain ... See more keywords
Spatiotemporal Characteristics of Quadrupedal Locomotion in Vespertilionid Bats
Sign Up to like & getrecommendations! Published in 2019 at "Biology Bulletin"
DOI: 10.1134/s1062359018090054
Abstract: Abstract—Chiroptera is the order of the only mammals to have acquired flapping flight. Their musculoskeletal system is significantly reorganized. In addition, their four-legged locomotion is fundamentally different from that in typical mammals. The most up-to-date… read more here.
Keywords: characteristics quadrupedal; spatiotemporal characteristics; locomotion vespertilionid; quadrupedal locomotion ... See more keywords