Results 31 to 40 of about 855,316 (304)

Online identification and nonlinear control of the electrically stimulated quadriceps muscle [PDF]

open access: yes, 2005
A new approach for estimating nonlinear models of the electrically stimulated quadriceps muscle group under nonisometric conditions is investigated. The model can be used for designing controlled neuro-prostheses. In order to identify the muscle dynamics
Ferchland, E.   +6 more
core   +1 more source

3D-Posture Recognition Using Joint Angle Representation [PDF]

open access: yes, 2014
This paper presents an approach for action recognition performed by human using the joint angles from skeleton information. Unlike classical approaches that focus on the body silhouette, our approach uses body joint angles estimated directly from time-series skeleton sequences captured by depth sensor.
Al Alwani, Adnan   +4 more
openaire   +2 more sources

A machine learning approach for saddle height classification in cycling

open access: yesFrontiers in Sports and Active Living
BackgroundSaddle height is an important factor in bike fitting because it correlates with cycling efficiency and the risk of injuries. Conventional approaches use anthropometric parameters and joint angles as references to calculate the optimal saddle ...
Fangbo Bing   +4 more
doaj   +1 more source

Rubber Hand Illusion Affects Joint Angle Perception

open access: yesPLoS ONE, 2014
The Rubber Hand Illusion (RHI) is a well-established experimental paradigm. It has been shown that the RHI can affect hand location estimates, arm and hand motion towards goals, the subjective visual appearance of the own hand, and the feeling of body ownership.
Butz, Martin V.   +2 more
openaire   +5 more sources

Fusimotor Control of Spindle Sensitivity Regulates Central and Peripheral Coding of Joint Angles

open access: yesFrontiers in Computational Neuroscience, 2012
Proprioceptive afferents from muscle spindles encode information about peripheral joint movements for the central nervous system (CNS). The sensitivity of muscle spindle is nonlinearly dependent on the activation of gamma (γ) motoneurons in the spinal ...
Ning eLan, Ning eLan, Xin eHe
doaj   +1 more source

A Generalized Framework on Beamformer Design and CSI Acquisition for Single-Carrier Massive MIMO Systems in Millimeter Wave Channels [PDF]

open access: yes, 2016
In this paper, we establish a general framework on the reduced dimensional channel state information (CSI) estimation and pre-beamformer design for frequency-selective massive multiple-input multiple-output MIMO systems employing single-carrier (SC ...
Ayanoglu, Ender, Guvensen, Gokhan M.
core   +2 more sources

A Framework for Analytical Validation of Inertial-Sensor-Based Knee Kinematics Using a Six-Degrees-of-Freedom Joint Simulator

open access: yesSensors, 2022
The success of kinematic analysis that relies on inertial measurement units (IMUs) heavily depends on the performance of the underlying algorithms. Quantifying the level of uncertainty associated with the models and approximations implemented within ...
Ariana Ortigas Vásquez   +5 more
doaj   +1 more source

Low-level finite state control of knee joint in paraplegic standing [PDF]

open access: yes, 1992
Low-level finite state (locked-unlocked) control is compared with open-loop stimulation of the knee extensor muscles in functional electrical stimulation (FES) induced paraplegic standing.
Boom, H.B.K.   +5 more
core   +3 more sources

Nonlinear joint angle control for artificially stimulated muscle [PDF]

open access: yesIEEE Transactions on Biomedical Engineering, 1992
Designs of both open- and closed-loop controllers of electrically stimulated muscle that explicitly depend on a nonlinear mathematical model of muscle input-output properties are presented and evaluated. The muscle model consists of three factors: a muscle activation dynamics factor, an angle-torque relationship factor, and an angular velocity torque ...
Veltink, Petrus H.   +3 more
openaire   +3 more sources

Body-Worn IMU-Based Human Hip and Knee Kinematics Estimation during Treadmill Walking

open access: yesSensors, 2022
Traditionally, inertial measurement unit (IMU)-based human joint angle estimation techniques are evaluated for general human motion where human joints explore all of their degrees of freedom.
Timothy McGrath, Leia Stirling
doaj   +1 more source

Home - About - Disclaimer - Privacy