Papers
26
Total Citations
213
H-Index
9
About
Hiroaki Hirai is a robotics and neuroscience researcher whose work bridges human motor control, musculoskeletal robotics, and rehabilitation engineering. His research centers on three interconnected themes: bio-inspired robot control using pneumatic artificial muscles, muscle synergy-based motor coordination, and human-robot interaction for rehabilitation applications. Hirai's most influential contribution is his development of the agonist-antagonist muscle-pair (A-A) control framework, introduced across multiple publications beginning around 2011–2012, which drew directly from human neuromuscular organization to govern robotic joint systems driven by pneumatic artificial muscles. This work, accumulating over 40 citations, has provided a principled bridge between biological motor principles and practical robotic actuator design. Complementing this, his investigations into muscle synergies during locomotion and upper-limb movement addressed the longstanding redundancy problem in motor control, extracting simplified coordination patterns from EMG data to inform humanoid robot design. On the rehabilitation side, Hirai contributed to the MIT-Skywalker project, evaluating saddle-seat body-weight support combined with functional electrical stimulation for gait recovery after neurological injury. His earlier work on dynamical role division further demonstrated how efficient human-robot coordination can emerge organically through physical interaction. With nearly 150 total citations, Hirai's portfolio reflects a consistent commitment to translating neuroscientific insights into functional robotic and clinical systems.
Research Focus
Key Achievements
Top Papers
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- 3MIT-Skywalker: Evaluating comfort of bicycle/saddle seat17 citations · 2017
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