Works (14)

Updated: August 7th, 2023 21:16

2023 journal article

Concurrent and Continuous Prediction of Finger Kinetics and Kinematics via Motoneuron Activities

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 70(6), 1911–1920.

By: R. Roy*, Y. Zheng*, D. Kamper* & X. Hu*

author keywords: Neural decoding; hand function; isometric force; dynamic movement
MeSH headings : Kinetics; Biomechanical Phenomena; Fingers / physiology; Hand; Electromyography / methods; Motor Neurons / physiology; Movement; Muscle, Skeletal / physiology
TL;DR: A continuous neural decoding approach that can concurrently predict fingertip forces and joint angles of multiple fingers in real-time can enable intuitive interactions with assistive robotic hands, and allow the performance of dexterous hand skills involving both force control tasks and dynamic movement control tasks. (via Semantic Scholar)
Source: Web Of Science
Added: July 31, 2023

2021 journal article

Automatic Detection of Contracting Muscle Regions via the Deformation Field of Transverse Ultrasound Images: A Feasibility Study

ANNALS OF BIOMEDICAL ENGINEERING, 49(1), 354–366.

By: Y. Zheng n, H. Shin n, D. Kamper n & X. Hu n

author keywords: Transverse ultrasound imaging; Muscle contraction; Muscle function; Finger muscle; Deformation estimation
MeSH headings : Algorithms; Electromyography; Feasibility Studies; Finger Joint / diagnostic imaging; Finger Joint / physiology; Humans; Male; Muscle Contraction; Muscle, Skeletal / diagnostic imaging; Muscle, Skeletal / physiology; Ultrasonography
TL;DR: A novel framework was developed to detect contracting muscle regions based on the deformation field of transverse ultrasound images that can automatically detect the regions of contracting muscle, and could potentially serve as a tool to assess the functions of a group of muscles concurrently. (via Semantic Scholar)
Source: Web Of Science
Added: July 27, 2020

2021 journal article

Concurrent Prediction of Finger Forces Based on Source Separation and Classification of Neuron Discharge Information

INTERNATIONAL JOURNAL OF NEURAL SYSTEMS, 31(06).

By: Y. Zheng n & X. Hu n

author keywords: Neurosignal processing; finger force prediction; hand function; motor unit; neural interface
MeSH headings : Electromyography; Fingers; Humans; Motor Neurons / physiology; Muscle, Skeletal
TL;DR: This work developed a neural decoding technique that allowed continuous and concurrent prediction of forces of different fingers based on spinal motoneuron firing information, and demonstrated the possibility of classifying motoneurons for different fingers, which significantly alleviated the cross-talk issue of EMG recordings from neighboring hand muscles. (via Semantic Scholar)
Source: Web Of Science
Added: June 14, 2021

2021 article

Estimation of Joint Kinematics and Fingertip Forces using Motoneuron Firing Activities: A Preliminary Report

2021 10TH INTERNATIONAL IEEE/EMBS CONFERENCE ON NEURAL ENGINEERING (NER), pp. 1035–1038.

By: F. Xu*, Y. Zheng* & X. Hu*

TL;DR: A novel decoding method that used finger-specific motoneuron firing frequency to estimate joint kinematics and fingertip forces and showed that the MU firing based approach led to smaller prediction errors for both joint angles and forces compared with the conventional EMG amplitude based method. (via Semantic Scholar)
Source: Web Of Science
Added: August 16, 2021

2020 journal article

Elicited upper limb motions through transcutaneous cervical spinal cord stimulation

JOURNAL OF NEURAL ENGINEERING, 17(3).

By: Y. Zheng* & X. Hu*

author keywords: transcutaneous electrical stimulation; spinal cord stimulation; upper extremity kinematics; arm function; hand function
MeSH headings : Hand; Humans; Muscle, Skeletal; Range of Motion, Articular; Spinal Cord; Spinal Cord Stimulation; Upper Extremity
TL;DR: The results revealed that distal and proximal joint movements can be elicited either independently or synergistically, and the feasibility of the spinal cord stimulation technique in eliciting functional movements of the upper limb was demonstrated. (via Semantic Scholar)
Source: Web Of Science
Added: June 29, 2020

2020 journal article

Muscle activation pattern elicited through transcutaneous stimulation near the cervical spinal cord

JOURNAL OF NEURAL ENGINEERING, 17(1).

By: Y. Zheng n & X. Hu*

author keywords: transcutaneous electrical stimulation; spinal cord; hand function; arm function; muscle activation
MeSH headings : Adult; Arm / innervation; Arm / physiology; Cervical Cord / physiology; Electromyography / methods; Humans; Male; Muscle Contraction / physiology; Muscle, Skeletal / innervation; Muscle, Skeletal / physiology; Transcutaneous Electric Nerve Stimulation / methods; Young Adult
TL;DR: The tsCSC approach can improve the muscle activation pattern during electrical stimulation with a possible involvement of the spinal and supraspinal pathways, which can facilitate applications on rehabilitation/assistance of individuals with impaired motor function. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: Web Of Science
Added: June 22, 2020

2019 journal article

Elicited Finger and Wrist Extension Through Transcutaneous Radial Nerve Stimulation

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 27(9), 1875–1882.

By: Y. Zheng n & X. Hu n

author keywords: Transcutaneous electrical nerve stimulation; radial nerve stimulation; hand function; hand opening; wrist extension
MeSH headings : Adult; Biomechanical Phenomena; Elbow; Electromyography; Female; Fingers / physiology; H-Reflex / physiology; Hand; Healthy Volunteers; Humans; Male; Motor Neurons / physiology; Muscle Fatigue; Muscle Fibers, Skeletal / physiology; Radial Nerve / physiology; Transcutaneous Electric Nerve Stimulation / methods; Wrist / physiology; Young Adult
TL;DR: This paper investigated the feasibility of eliciting various hand opening and wrist extension movement patterns through a transcutaneous electrical stimulation array, which targeted the proximal segment of the radial nerve bundle proximal to the elbow. (via Semantic Scholar)
Source: Web Of Science
Added: October 7, 2019

2019 journal article

Estimating asymmetric information effects in health care with uninsurable costs

INTERNATIONAL JOURNAL OF HEALTH ECONOMICS AND MANAGEMENT, 19(1), 79–98.

By: Y. Zheng*, T. Vukina n & X. Zheng n

author keywords: Moral hazard; Adverse selection; Health insurance; Transaction costs; C14; D82; I11
TL;DR: A structural approach is used to separately estimate moral hazard and adverse selection effects in health care utilization using hospital invoices data and indicates statistically significant and economically meaningful moral hazard in the population of patients with non life-threatening diagnoses. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: March 25, 2019

2019 journal article

Interference Removal From Electromyography Based on Independent Component Analysis

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 27(5), 887–894.

By: Y. Zheng n & X. Hu n

author keywords: Biosignal processing; independent component analysis; motion artifacts; noise reduction; power line noise
MeSH headings : Adult; Algorithms; Artifacts; Electromyography / methods; Electromyography / statistics & numerical data; Female; Fingers / innervation; Fingers / physiology; Hand / innervation; Hand / physiology; Humans; Male; Motor Neurons / physiology; Muscle Fibers, Skeletal / physiology; Muscle, Skeletal / physiology; Principal Component Analysis; Signal Processing, Computer-Assisted; Signal-To-Noise Ratio; Young Adult
TL;DR: The method showed a minimal distortion of the denoised EMG amplitude and frequency and a higher yield of decomposed motor units and can benefit macro level EMG analysis and micro level motor unit analysis. (via Semantic Scholar)
Source: Web Of Science
Added: May 28, 2019

2019 journal article

Paramagnon drag in high thermoelectric figure of merit Li-doped MnTe

SCIENCE ADVANCES, 5(9).

By: Y. Zheng*, T. Lu*, M. Polash n, M. Rasoulianboroujeni n, N. Liu*, M. Manley*, Y. Deng*, P. Sun* ...

Contributors: Y. Zheng*, Y. Zheng, T. Lu*, T. Lu, M. Polash n, M. Polash, M. Rasoulianboroujeni n, M. Rasoulianboroujeni ...

TL;DR: An optimally doped material having a thermoelectric figure of merit ZT > 1 at T > ~900 K, the first material with a technologically meaningful thermoelectedric energy conversion efficiency from a spin-caloritronic effect. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: November 4, 2019

2019 journal article

Real-time isometric finger extension force estimation based on motor unit discharge information

JOURNAL OF NEURAL ENGINEERING, 16(6).

By: Y. Zheng n & X. Hu*

author keywords: hand function; finger force estimation; isometric contraction; neural interface; motor unit firing
MeSH headings : Adult; Computer Systems; Electromyography / instrumentation; Electromyography / methods; Female; Fingers / physiology; Humans; Isometric Contraction / physiology; Male; Motor Neurons / physiology; Recruitment, Neurophysiological / physiology; Young Adult
TL;DR: The neural-drive method on real-time finger force estimation was more accurate over time compared with the conventional EMG-amplitude method during prolonged muscle contractions, and can potentially offer a more accurate and robust neural interface technique for reliable neural-machine interactions based on MU pool discharge information. (via Semantic Scholar)
Source: Web Of Science
Added: January 6, 2020

2018 journal article

Improved muscle activation using proximal nerve stimulation with subthreshold current pulses at kilohertz-frequency

JOURNAL OF NEURAL ENGINEERING, 15(4).

By: Y. Zheng n & X. Hu n

author keywords: transcutaneous electrical nerve stimulation; electromyography; motor unit action potential; subthreshold stimulation; kilohertz-frequency
MeSH headings : Action Potentials / physiology; Adult; Electromyography / methods; Female; Humans; Male; Median Nerve / physiology; Muscle Contraction / physiology; Muscle, Skeletal / innervation; Muscle, Skeletal / physiology; Transcutaneous Electric Nerve Stimulation / methods; Ulnar Nerve / physiology; Young Adult
TL;DR: The findings indicated that different nerve fibers were recruited asynchronously through summations of different numbers of subthreshold depolarizations in the HF mode, which was capable of activating the nerve fibers in a less synchronized way, which is more similar to the physiological activation pattern. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2018 journal article

Muscle Fatigue Post-stroke Elicited From Kilohertz-Frequency Subthreshold Nerve Stimulation

FRONTIERS IN NEUROLOGY, 9.

By: Y. Zheng n, H. Shin n & X. Hu n

author keywords: transcutaneous electrical nerve stimulation; electromyography; muscle fatigue; stroke; kilohertz-frequency
TL;DR: The results indicated that the HF nerve stimulation technique can reduce muscle fatigue in stroke survivors by maintaining a higher efficiency of muscle activations compared with the LF stimulation. (via Semantic Scholar)
Source: Web Of Science
Added: December 17, 2018

2018 journal article

Reduced muscle fatigue using kilohertz-frequency subthreshold stimulation of the proximal nerve

JOURNAL OF NEURAL ENGINEERING, 15(6).

By: Y. Zheng n & X. Hu n

author keywords: transcutaneous electrical nerve stimulation; finger function; electromyography; muscle fatigue; kilohertz frequency; functional electrical stimulation
MeSH headings : Adult; Electric Stimulation / methods; Electromyography; Female; Fingers / physiology; Healthy Volunteers; Humans; Male; Median Nerve / physiology; Motor Neurons / physiology; Muscle Fatigue / physiology; Muscle Fibers, Skeletal / physiology; Peripheral Nerves / physiology; Transcutaneous Electric Nerve Stimulation; Ulnar Nerve / physiology; Young Adult
TL;DR: The findings revealed that the subthreshold kilohertz nerve stimulation can induce temporally and spatially dispersed activation of different motor units with more efficient activation patterns and can potentially reduce muscle fatigue. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: Web Of Science
Added: October 16, 2018

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