Volume 17 (2023)
Volume 16 (2022)
Volume 15 (2021)
Volume 14 (2020)
Volume 13 (2019)
Volume 12 (2018)
Volume 11 (2017)
Volume 10 (2016)
Volume 9 (2015)
Volume 8 (2014)
Volume 7 (2013)
Volume 6 (2012)
Volume 5 (2011)
Volume 4 (2010)
Volume 3 (2009)
Volume 2 (2008)
Volume 1 (2007)
Volume -2 (2005)
Volume -1 (2004)
Musculoskeletal Systems Modeling
A new approach in dynamic analysis of human 3D gait in the presence of sliding mode controller

Hossein Rostami Barooji; Abdolreza Ohadi; Farzad Towhidkhah

Volume 17, Issue 2 , September 2023, , Pages 120-130

  Despite the extensive progress in the field of biomechanics of human gait, a suitable gait model with the ability to simulate the control system of the human brain has not yet been presented, especially in 3D mode. The importance of the issue increases when the simulation of human walking is one of the ...  Read More

Musculoskeletal Systems Modeling
The Effect of Pedaling Rate and Resistance against Pedaling in Feasible Pedaling Places on Leg Muscles and Joints Behaviors in Ergometer: A Parametric Study

Elham Hazrati; Mahmoud Reza Azghani

Volume 11, Issue 1 , May 2017, , Pages 19-28

  Pedaling is one of the common physical activities for muscles strengthening. Pedaling performance is affected by various factors. The purpose of this study is investigating the effect of pedaling rate and resistance moment against pedaling in the feasible pedaling places (kinematics view) on the muscles ...  Read More

Musculoskeletal Systems Modeling
Evaluation of the role of cervical multifidus muscle in differnet shoulder joint activities

Sharareh Kian-Bostanabad; Mahmoud Reza Azghani; Leila Rahnama

Volume 9, Issue 3 , December 2015, , Pages 283-291

  Cervical multifidus muscle is one of the neck extensor muscles that plays an important role in the neck stability. By observing the different behaviors for this muscle during the six shoulder activities in previous study, it was modeled within the software and the effect of its action on the different ...  Read More

Rehabilitation Engineering
Classification of elderly subjects to fallers and non-fallers using a novel set of features extracted from gait frieze pattern

Ziba Gandomkar; Fariba Bahrami

Volume 7, Issue 1 , June 2013, , Pages 21-37

  Changes in gait pattern are early symptoms in many disorders such as balance and control problems resulted in fall among elderlies. This paper aims at proposing a new set of features extracted from Gait Frieze Pattern (GFP) in order to classify seniors to fallers and non-fallers. For indicating the effectiveness ...  Read More

Rehabilitation Engineering
Design, Analysis and Function Simulation of a Simple and Effective Driving Mechanism for Gait Trainer

Mohammad Salehi Amini; Siavash Kazemirad; Saman Mohammadi; Roya Narimani; Farzam Farahmand

Volume 7, Issue 2 , June 2013, , Pages 121-132

  The purpose of this study was to design, analyze and evaluate an effective low-cost driving mechanism for gait trainer. The crank-rocker mechanism was favored for reproducing the path of foot during gait cycle, considering the type of motion and design parameters such as adjustability for different anthropometries, ...  Read More

Gait Analysis
Nonlinear analysis of dynamic lumbar stability during repetitive trunk flexion extension at symmetric and asymmetric directions

Samane Moeini Sedeh; Navid Arjmand; Mohammad Ali Sanjari; Hamid Reza Mokhtarinia; Morteza Asgari; Mohammad Parnianpour

Volume 7, Issue 4 , June 2013, , Pages 333-340

  Stability is important to prevent falling during occupational and daily living activities. Control parameters such as direction of motion and external load can affect stability pattern. The purpose of this paper was to evaluate the effect of the mentioned control parameters on stability. Time series ...  Read More

Neuro-Muscular Engineering
Adaptive Neuro-Fuzzy Sliding Mode control of Walking Using Intramuscular Electrical Stimulation in Rat Model

Abed Khorasani; Abbas Erfanian Omidvar

Volume 5, Issue 3 , June 2011, , Pages 245-255

  During the last decade, functional neuromuscular stimulation (FNS) has been proposed as a potential technique for restoring motor function in paralyzed limbs. A major challenge to restoring a desired functional limb movement through the use of intramuscular stimulation is the development of a robust ...  Read More

Spinal Biomechanics
Experimental Measurement and Numerical Modeling of Spine Alignment of the Lateral Sleep Position and Determining the Optimal Stiffness of Mattress Elements for Male Subjects

Karim Leilnahari; Nasser Fatouraee; Mohammad Saleh Ganjavian

Volume 5, Issue 2 , June 2011, , Pages 161-170

  Ergonomic factors have a direct influence on the quality of spine support during sleep. Previous studies have shown that a mattress with a homogeneous stiffness can not necessarily maintain the natural spinal alignment. Using mattresses with components of different stiffness could be considered as a ...  Read More

Neuro-Muscular Engineering
Employing muscular and stability synergies to perform a desired task

Amir Hosein Eskandari; Ehsan Sedaghat Nejad; Seyed Javad Mousavi; Mohsen Asghari; Mohammad Parnianpour

Volume 5, Issue 3 , June 2011, , Pages 257-273

  Selection of muscle activation pattern to reach a specific goal by considering the complexities of neuromuscular system and the way it overcomes these complications, is of researchers􀂶interest in motor control. One proposed solutionfor resolving thesecomplexities is the concept of simple module (synergies) ...  Read More

Power Law: Relation Between Geometry And Kinematics In Skilled Drawing Movements

Saeed Rashidi; Seyed Mohammad Reza Hashemi Golpayegani; Ali Fallah; Farzad Towhidkhah

Volume 4, Issue 1 , June 2010, , Pages 33-44

  In drawing movements, the constraints imposed on the trajectory geometry properties and kinematics are known with two laws: 2/3 power law and isochrony phenomenon. In this paper experiments have been designed to study the relation between two empirical laws in straight and curved patterns of drawing ...  Read More

Rehabilitation Engineering
A Biomechanical Comparison Of Postural Control Mechanisms Between Healthy Adults And Below Knee Amputees During Voluntary Arm Movements

Robabe Vatanparast; Hossein Karimi; Fariba Bahrami; Roya Narimani

Volume 3, Issue 3 , June 2009, , Pages 171-178

  CNS applies Anticipatory Postural Adjustments (APA) strategy to reject or minimize perturbation during different voluntary movements. The postural control mechanisms associated with voluntary arm movement (rapid arm rising) in below knee amputees (BKA) was investigated and the results were compared with ...  Read More

Gait Analysis
Analytical And Experimental Investigation Of Human Balance Recovery In Response To Oscillations Of The Base Of Support In The Frontal Plane

Mohsen Sadeghi Mehr; Davoud Naderi; Nader Farahpour; Saeed Davoud Abadi Farahani

Volume 3, Issue 3 , June 2009, , Pages 179-187

  The present study was devoted to determine the standing human body reactions to perturbation of a base plate in the frontal plane, in order to preserve its stability. A base plate with sinusoidal fluctuation was designed and built and then markers were mounted on the specified locations on it and the ...  Read More

Rehabilitation Engineering
Evaluation of Dynamical Structure of Postural Balance Control System During Quiet Standing in Normal and C.V.A Subjects

Hamed Ghomashchi; Ali Esteki; Ali Motie Nasrabadi

Volume 2, Issue 2 , June 2008, , Pages 95-107

  In this study, the underlying dynamics of postural control system during quiet standing were investigated. Single-subject (SS) analysis was used as the statistical technique to compare the results. Center of pressure (COP) trajectories of 21 trials of a standing healthy subject and 24 trials of a cerebrovascular ...  Read More

Biomechanical Motor Control / Motor Control of Human Movement
How Does CNS Address the Kinetic Redundancy in Lumbar Spine? Three Dimensional Isometric Exertions With 18 Hill Muscle Fascicles at L4/L5 Level of Lumbar Region

Ehsan Rashedi; Mohammad Reza Nassajian; Bahman Nasseroleslami; Mohammad Parnianpour

Volume 2, Issue 2 , June 2008, , Pages 109-122

  Human motor system is organized for execution of various motor tasks in different and flexible ways. This is mainly achieved by the way that CNS uses the redundancy in musculoskeletal system. The kinetic redundancy in human musculoskeletal systems is a significant property by which CNS achieves many ...  Read More

Speech processing
A Novel Model for Investigation of the Jaw Movement During Speech

Ayoub Daliri; Farzad Towhidkhah; Shahriar Gharibzadeh; Yaser Shekofteh

Volume 2, Issue 2 , June 2008, , Pages 123-129

  Speech production is one of the most complicated physiological systems including different subsystems. These subsystems must work together in a synchronous manner. One of the important sub-systems is the jaw. Although different models have suggested for jaw, no suitable model has been proposed yet to ...  Read More

Rehabilitation Engineering
Using Synergy to Control the Reaching Movement Neuroprosthesis: Muscle Synergy or Kinematic Synergy

Ali Maleki; Ali Fallah

Volume 2, Issue 2 , June 2008, , Pages 131-140

  Patients with spinal cord injury in C5/C6 levels are capable of controlling the voluntary movements of the shoulder joints, but some muscles involved in the movement of the elbow joint are paralyzed in these patients. By using FES as well as an appropriate stimulation of the paralyzed muscles, the patients ...  Read More

Rehabilitation Engineering
Clinical Assessment of Force Plate for Predicting the Intensity of Disorder and Limit differential Diagnoses in Steppage Gait

Nima Jamshidi; Mostafa Rostami; Siamak Najarian; Mohammad Bagher Menhaj; Mohammad Saadatnia; Firouz Salami

Volume 2, Issue 1 , June 2008, , Pages 57-64

  In this research the kinematics parameters derived from ground reaction forces were evaluated to limit the differential diagnoses and measure the degree of disabilities during the walking among neuropathic subjects. 25 neuropathic subjects affected by drop foot and 20 normal subjects were enrolled in ...  Read More

Neuro-Muscular Engineering
An Adaptive Fuzzy Control with Hierarchical Structure for Controlling the Knee-joint angle by using Functional Electrical Stimulation

Hamid Reza Kobravi; Abbas Erfanian Omidvar

Volume 2, Issue 4 , June 2008, , Pages 335-349

  In this paper an adaptive robust fuzzy controller based on sliding mode control (SMC) approach is proposed to control the knee joint position using quadriceps electrical stimulation and it has been tested on three subjects. The proposed method is based on SMC. The main advantage of SMC derives from the ...  Read More

Neuro-Muscular Engineering
Neural Network Modeling Of Electrically Stimulated Muscle Under Non-Isometric Conditions

Abbas Erfanian Omidvar

Volume -2, Issue 1 , July 2005, , Pages 81-92

  This paper is concerned with developing a force-generating model of electrically stimulated muscle under non-isometric condition. Hill-based muscle models have been the most popular structure. This type of muscle model was constructed as a combination of different independent blocks (i.e., activation ...  Read More

Neuro-Muscular Engineering
Sensitivity Analysis Of Muscle Activation-Joint Position Using Computer Simulation Of A Model For The Thumb And Index Finger

Ali Esteki

Volume -1, Issue 1 , June 2004, , Pages 15-23

  Computer simulation of a three dimensional model of the thumb and index finger was used to perform a sensitivity analysis of each joint position to individual muscle activation level. The results were used to study the effect of each muscle on hand posture and select specific muscles to get a desired ...  Read More