User profiles for Tunc Akbas

Tunc Akbas

University of Texas at Austin
Verified email at utexas.edu
Cited by 271

[HTML][HTML] Rectus femoris hyperreflexia contributes to Stiff-Knee gait after stroke

T Akbas, K Kim, K Doyle, K Manella, R Lee… - … of neuroengineering and …, 2020 - Springer
Background Stiff-Knee gait (SKG) after stroke is often accompanied by decreased knee
flexion angle during the swing phase. The decreased knee flexion has been hypothesized to …

[HTML][HTML] Neuromusculoskeletal simulation reveals abnormal rectus femoris-gluteus medius coupling in post-stroke gait

T Akbas, RR Neptune, J Sulzer - Frontiers in neurology, 2019 - frontiersin.org
Post-stroke gait is often accompanied by muscle impairments that result in adaptations such
as hip circumduction to compensate for lack of knee flexion. Our previous work robotically …

Hip circumduction is not a compensation for reduced knee flexion angle during gait

T Akbas, S Prajapati, D Ziemnicki, P Tamma… - Journal of …, 2019 - Elsevier
It has long been held that hip abduction compensates for reduced swing-phase knee flexion
angle, especially in those after stroke. However, there are other compensatory motions such …

A hinge-free, non-restrictive, lightweight tethered exosuit for knee extension assistance during walking

EJ Park, T Akbas, A Eckert-Erdheim… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
In individuals with motor impairments such as those post-stroke or with cerebral palsy, the
function of the knee extensors may be affected during walking, resulting in decreased mobility. …

Modulation of Achilles tendon force with load carriage and exosuit assistance

DG Schmitz, RW Nuckols, S Lee, T Akbas… - Science Robotics, 2022 - science.org
Exosuits have the potential to assist locomotion in both healthy and pathological populations,
but the effect of exosuit assistance on the underlying muscle-tendon tissue loading is not …

[HTML][HTML] Self-modulation of rectus femoris reflex excitability in humans

K Kim, T Akbas, R Lee, K Manella, J Sulzer - Scientific Reports, 2023 - nature.com
Hyperreflexia is common after neurological injury such as stroke, yet clinical interventions
have had mixed success. Our previous research has shown that hyperreflexia of the rectus …

Zero moment point based pace reference generation for quadruped robots via preview control

T Akbas, SE Eskimez, S Ozel, OK Adak… - 2012 12th IEEE …, 2012 - ieeexplore.ieee.org
Legged robots have significant advantages over other types of mobile robots when task at
hand requires the robot to overcome obstacles. This paper presents a reference trajectory …

A soft inflatable wearable robot for hip abductor assistance: Design and preliminary assessment

HD Yang, M Cooper, T Akbas… - 2020 8th IEEE RAS …, 2020 - ieeexplore.ieee.org
In this paper, we present the design, characterization and preliminary testing of a soft inflatable
wearable device that can apply assistance in parallel with a wearer's abductor muscles. …

Bipedal robot walking control on inclined planes by fuzzy reference trajectory modification

U Seven, T Akbas, KC Fidan, K Erbatur - Soft Computing, 2012 - Springer
The two-legged humanoid structure has advantages for an assistive robot in the human
living and working environment. However, the control of bipedal walk is a challenge. Walking …

Sensitivity comparison of inertial to optical motion capture during gait: implications for tracking recovery

J Lee, SY Shin, G Ghorpade, T Akbas… - 2019 IEEE 16th …, 2019 - ieeexplore.ieee.org
Wearable sensors provide a foundation for development of wearable robotic technology to
be used in clinical applications. Inertial motion capture (IMC) has emerged as a viable …