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Akihiko Murai

7 accepted papers

2023

Fast Inverse Kinematics Based on Pseudo-Forward Dynamics Computation: Application to Musculoskeletal Inverse Kinematics

RA-L 2023

Recently, fast and practical inverse kinematics (IK) methods for complicated human models have gained considerable interest owing to the spread of convenient motion-capture or human-augmentation technologies. Although the IK algorithms developed in robotics can also be applied to humans, they experi

Cited by 4SourceScholar
2022

Construction of a Simulator to Reproduce Changes in Running due to Motion Strategies Using Spring-Loaded Inverted Pendulum Model

IROS 2022poster

This study aims to construct a running simulator based on a motion generation and control system that enables the description of motion strategies using the spring-loaded inverted pendulum (SLIP) model. The problems of stability and robustness encountered in the running simulation with the SLIP mode…

Cited by 2SourceScholar
2021

Modeling and Simulation of Running Expansion with Trunk and Pelvic Rotation Assist Suit

ICRA 2021poster

Human running motion is a complex motion that not only based on the movement of legs but also needs the entire body to participate in. Therefore, we focused on the upper body, designed a trunk and pelvic rotation assist suit to apply an external force on the chest and pelvis for assisting the runnin…

Cited by 1SourceScholar
2018

Interspecies Retargeting of Homologous Body Posture Based on Skeletal Morphing

IROS 2018poster

The paper aims to develop a methodology of transferring the knowledge obtained from the experiments of laboratory animals to human musculoskeletal system. To achieve the goal, we propose a method for estimating the homologous posture of the mammalian skeletal system corresponding to the human body p…

Cited by 2SourceScholar
2018

Multilayered Kinodynamics Simulation for Detailed Whole-Body Motion Generation and Analysis

ICRA 2018poster

This study generates and analyzes unsafe human motions that cannot be measured experimentally in laboratories with dynamic consistency. Detailed whole-body motions are generated by a multilayered kinodynamics simulation (MLKD Sim) that uses a detailed digital whole-body human model and a simple moti…

Cited by 9SourceScholar
2018

Neurorobotic Approach to Study Huntington Disease Based on a Mouse Neuromusculoskeletal Model

IROS 2018poster

Motor functions of the biological system has been forged through 4 billion years evolution. From a neurorobotics view, it is important not only to know how well it works, but also how it fails. To quantitatively describe early onset symptoms of a neurodegenerative disease, we analyzed phenotypes of…

Cited by 3SourceScholar
2016

Anatomographic Volumetric Skin-Musculoskeletal Model and Its Kinematic Deformation With Surface-Based SSD

RA-L 2016

Conventional musculoskeletal models mainly consist of bones modeled by rigid linkages, and muscles, tendons, and ligaments modeled by ideal wires. The lack of volumetric modeling of muscle makes a representation of interaction between muscles and natural muscle pathway difficult. This difficulty res

Cited by 12SourceScholar