Franck Quaine

Franck Quaine
Grenoble Institute of Technology | Grenoble INP · GIPSA-lab of Images, Signal, Speech and Automatics

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85
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Introduction
Skills and Expertise

Publications

Publications (85)
Chapter
Full-text available
This paper focuses on finger force magnitude analysis during stiffness discrimination task. In the frame of their Study and research work MS students from the Université Grenoble Alpes specially designed an experimental bench allowing to simulate a pseudo-haptic spring. Then, a series of stiffness discrimination tests between reals springs and a ps...
Article
Full-text available
Surface electromyography (sEMG) is a non-invasive method, which may be used in France by health practitioners without medical degree, such as physiotherapists, who are taught in Institutes of physiotherapy. However, very few hours are devoted to sEMG teaching in physiotherapist educational programs, especially in a form of practical work. In order...
Chapter
With the increase in life expectancy, some new information and communication technologies become poorly adapted to elderly, especially with devices of small size as smartphones for example. In order to predict and improve the accessibility of people with limited forearm motor capacity the paper deals with the study of interaction modalities based o...
Chapter
Muscle-computer interfaces (MCIs) based on surface electromyography (EMG) pattern recognition have been developed based on two consecutive components: feature extraction and classification algorithms. Many features and classifiers are proposed and evaluated, which yield the high classification accuracy and the high number of discriminated motions u...
Conference Paper
Full-text available
L'objectif de cette étude est d'étudier les effets de la fatigue des muscles cervicaux sur la raideur musculo-tendineuse du segment tête-cou en flexion. Dix sujets ont réalisé quatre détentes rapides du segment tête-cou en flexion à des niveaux de force sous-maximaux avant et après un protocole de fatigue des muscles cervicaux. Les résultats n'ont...
Article
The extensor mechanism of the finger is a structure transmitting the forces from several muscles to the finger joints. Force transmission in the extensor mechanism is usually modeled by equations with constant coefficients which are determined experimentally only for finger extension posture. However, the coefficient values change with finger flexi...
Article
Full-text available
Today disassembly operations play a very important role during the initial design phase of industrial products considering the role played by these operations throughout the Product Life-Cycle (PLC). Current simulation platforms do not offer the necessary information and versatility required for a complete disassembly process simulation, including...
Conference Paper
Interference or a crosstalk from nearby muscles is a classic problem in surface electromyographic recordings. Most studies of crosstalk diminution have only focused on blind source separation techniques and spatial filtering of simulated signals. The aim of this study was to perform an extraction of the activity of index and little finger extensor...
Conference Paper
Full-text available
Biomechanical modeling of force transmission in fingers is important for surgical treatment planning. In recent years, there has been an increasing interest in extensor mechanism (EM) modeling, which plays an important role in both extension and flexion of the fingers. It consists of tendons transmitting active forces and retention apparatus (or l...
Article
The probability density function (pdf) of an electromyography (EMG) signal provides useful information for choosing an appropriate feature extraction technique. The pdf is influenced by many factors, including the level of contraction force, muscle type, and noise. In this paper, we investigated the pdfs of noisy EMG signals artificially contaminat...
Article
Full-text available
Aim The aim of this study is to determine if the fatigue of cervical muscles has a significant influence on the head-neck segment musculo-tendinous stiffness. Methods Ten men (aged 21.2 ± 1.9 years) performed four quick-release trials of flexion at 30 and 50% MVC before and after the induction of muscular fatigue on cervical flexors. Electromyogra...
Conference Paper
Blind source separation (BSS) was performed to reduce the crosstalk in the surface electromyografic signals (SEMG) for the muscle force estimation applications. A convolutive mixture model was employed to separate the SEMG signals from two finger extensor muscles using a frequency-domain approach. It was assumed that the tension of each muscle vari...
Research
Full-text available
High radial nerve palsy induces the loss of extension in the thumb, fingers and wrist. Tendon transfer surgery uses remained active flexor muscles to restore these lost functions by rerouting the tendon paths. The aim of this study was to investigate how the fingertip forces change following a tendon transfer surgery when performing a finger pressi...
Conference Paper
Full-text available
A linear relationship between the probability density function (PDF) of surface electromyography (EMG) signal and the level of contraction force has been found in many previous investigations. However, only few muscles have been studies while differences between muscles in anatomical and physiological properties are ackowledged. Therefore, the purp...
Article
This paper demonstrates the utility of a differencing technique to transform surface EMG signals measured during both static and dynamic contractions such that they become more stationary. The technique was evaluated by three stationarity tests consisting of the variation of two statistical properties, i.e., mean and standard deviation, and the rev...
Conference Paper
Full-text available
The head-neck musculo-tendinous stiffness is a crucial component of head stabilization. The aim of this study is to apply a method of quantification of the musculo-tendinous stiffness, commonly used on single joints corporal segments, to the head-neck segment. Twenty-four quick-releases (twelve in flexion and twelve in extension) were realized at d...
Chapter
Full-text available
Muscle-computer interfaces (MCIs) based on surface electromyography (EMG) pattern recognition have been developed based on two consecutive components: feature extraction and classification algorithms. Many features and classifiers are proposed and evaluated, which yield the high classification accuracy and the high number of discriminated motions u...
Article
In pattern recognition-based myoelectric control, high accuracy for multiple discriminated motions is presented in most of related literature. However, there is a gap between the classification accuracy and the usability of practical applications of myoelectric control, especially the effect of long-term usage. This paper proposes and investigates...
Article
Full-text available
To develop an advanced muscle–computer interface (MCI) based on surface electromyography (EMG) signal, the amplitude estimations of muscle activities, i.e., root mean square (RMS) and mean absolute value (MAV) are widely used as a convenient and accurate input for a recognition system. Their classification performance is comparable to advanced and...
Conference Paper
Full-text available
In order to analyze surface electromyography (EMG) signals, it is necessary to use techniques based on time (temporal) domain or frequency (spectral) domain. However, these techniques are based on the mathematical assumption of signal stationarity. On the other hand, EMG signal stationarity varies depending on analysis window size and contraction t...
Conference Paper
Full-text available
A recent study proposes to model the head-neck segment as a single-joint system with a changeable geometry [1]. This model based on kinematics and optimization procedure provides the location of the resultant centre of rotation of the head-neck during movement. Different applications of quick-releases (QR) with this model were performed for flexion...
Article
High classification accuracy has been achieved for muscle–computer interfaces (MCIs) based on surface electromyography (EMG) recognition in many recent works with an increasing number of discriminated movements. However, there are many limitations to use these interfaces in the real-world contexts. One of the major problems is compatibility. Design...
Conference Paper
To develop an advanced muscle-computer interface (MCI) based on surface electromyography (EMG) signal, a suitable signal processing and classification technique has a key role to play, particularly the selection of EMG features. Two sufficient and well-known methods to extract signal amplitude are root mean square (RMS) and mean absolute value (MAV...
Article
Human muscle activity can be assessed with surface electromyography (SEMG). Depending on electrode location and size, the recording volume under the sensor is likely to measure electrical potentials emanating from muscles other than the muscle of interest. This crosstalk issue makes interpretation of SEMG data difficult. The purpose of this paper w...
Article
Full-text available
Despite the multi-linked architecture of the cervical spine, all previous studies that have made estimations of mechanical properties of the neck have considered the head-neck segment as a rigid link, with a fixed center of rotation at C7. The aim of this study was to consider the head-neck segment as a changeable geometry system for locating the r...
Article
This document is a preliminary version of the working report concerning the work packages 5.3 and 5.4 of the project VolHand 09 VTT 14, that are in charge to the Gipsa-Lab. In this working report, authors introduce the general architecture used to simulate the Electronic Power Steering (EPS) system. In this rst part, the models, the controller and...
Article
Full-text available
This study aimed at testing the pertinence of mimicking motor control theories in biomechanical models as a strategic direction for improving the understanding of muscle involvement. The theory of “minimization of the secondary moments of the hand” was added to an initial biomechanical model and was tested for several anatomic hand configurations (...
Conference Paper
The typical architecture of an Electric Power Assistance Steering (EPAS) system includes a static map to provide the correct amplification to the driver's exerted torque. In literature, it is generally known as booster curve. This paper concerns the study of the amplification criteria, that are commonly used to these booster curves. The basic conce...
Article
According to the document ANR 09 VTT VOLHAND Doc B, presented on October 2011, the research team in Gipsa-Lab is involved into the task 5.2 (T5.2) for the design of the the amplification curves that can be adapted to disabled people. The typical architecture of an Electric Power Assistance Steering (EPAS) system includes a static map to provide the...
Article
There is general consensus that the minimization of the secondary torque of the hand provides a universal model for explaining the force sharing patterns among the fingers. Since biomechanical secondary axes of the hand are unchanged in extension, it appears relevant to validate this model for finger extension forces. Fifteen subjects performed fle...
Conference Paper
Full-text available
The aim of this study is to apply quick-release (QR) method in order to quantify evolution of head-neck segment musculo-tendinous stiffness (S) according to induction of fatigue on cervical muscles. Eleven healthy subjects with no history of neck pain volunteered. Head kinematics during QR before and under muscular fatigue, necessary to calculate S...
Article
This document is a working report concerning the Task 5.1 of the project VolHand 09 VTT 14. This task is competence of the GipsaLab. This report presents several aspects of modelling, observation and control towards a new generation of Electrical Power Steering(EPS) systems. In particular authors design an observer to estimate the driver's applied...
Article
This document is a working report concerning the Task 5.1 of the project VolHand 09 VTT 14. This task is competence of the GipsaLab. This report presents several aspects of modelling, observation and control towards a new generation of Electrical Power Steering(EPS) systems. In particular authors design an optimal control to reject oscillations of...
Article
Full-text available
During rock-climbing, fingers grasp holds of various shapes with high force intensities. To ideally place the fingertips on the holds, the thumb is sometimes positioned on the nail of the index finger. This allows using the thumb as an additional actuator by exerting a supplementary force in the same direction as the index, middle, ring and little...
Conference Paper
Full-text available
This study was designed to assess musculo-tendinous stiffness of the head-neck segment in response to quick-release in flexion and extension. Musculo-tendinous stiffness of the neck was calculated using analysis of head kinematics with optimization procedure during the first 30 ms after the acceleration peak following the release at different exert...
Article
During the application of fingertip forces with simultaneous flexion of the four fingers, namely index, middle, ring, and little fingers, a stable force sharing among fingers is adopted. Several studies have hypothesized that this stable force sharing is established to minimize unnecessary rotational moments (different from the main flexion moments...
Article
Full-text available
Finger pulley injury is a common incident observed during sport-climbing. The total rupture of one or several pulleys is highly debilitating and requires surgical reconstruction and/or rehabilitation programs. Literature reports show that fingers are not equally exposed to this injury. The ring and middle fingers are usually injured while the index...
Article
Un des problèmes majeurs rencontrés lors d'un transfert tendineux de la main concerne le réglage de la tension et de la course du transfert. Le tendon est suturé à son effecteur sous tension permettant une correction optimale de la fonction réanimée. Le succès du transfert tendineux repose sur les concepts éminemment biomécaniques de force/moment m...
Article
Determining tendon tensions of the finger muscles is crucial for the understanding and the rehabilitation of hand pathologies. Since no direct measurement is possible for a large number of finger muscle tendons, biomechanical modelling presents an alternative solution to indirectly evaluate these forces. However, the main problem is that the number...
Article
This study examined situations where handles were used as additional postural supports. It aimed at determining the amplitude of centre of pressure (COP) shifts when considering or not the vertical handles reaction force. Eight healthy male subjects (24+/-6 years, body mass 65+/-5kg and height 175+/-7cm) voluntarily took part in the experiment. Sub...
Article
Full-text available
The satellite navigation system GPS has gradually gained a usability that was never expected during ist design 30 years ago. Similar statements can also be made for other central elements of modern navigation technology like gyroscopes and accelerometers as well as microprocessors for synchronizing and processing sensor signals. GPS receivers and o...
Article
Full-text available
The aim of this study was to characterize forearm muscle fatigue identified by the decrease in electromyogram median frequency and/or fingertip force during intermittent exercise. Nine elite climbers (international competitive level, USA 5.14a on sight) and ten non-climbers were instructed to maintain a fingertip force of 80% of their maximal volun...
Article
A mathematical model proposed by Hume et al., 1991. Journal of Hand Surgery-American Volume 16, 722-730 for the determination of the forces acting on the A2 and A4 pulley was used. The parameters necessary for this determination include the angle of flexion, the positioning of the pulley with respect to the centre of rotation in the proximal interp...
Article
The present work displayed the first quantitative data of forces acting on tendons and pulleys during specific sport-climbing grip techniques. A three-dimensional static biomechanical model was used to estimate finger muscle tendon and pulley forces during the "slope" and the "crimp" grip. In the slope grip the finger joints are flexed, and in the...
Chapter
Full-text available
In order to determine the forces acting on the A2 and A4 pulley a mathematical model proposed by (1991) was used. The parameters necessary for this determination include the angle of flexion, the positioning of the pulley with respect to the center of rotation in the PIP joint, the relative mismatch between bone and tendon width at the location of...
Article
The aim of this study was to characterize forearm muscle fatigue identified by the decrease in electromyogram median frequency and/or fingertip force during intermittent exercise. Nine elite climbers (international competitive level, USA 5.14a on sight) and ten non-climbers were instructed to maintain a fingertip force of 80% of their maximal volun...
Article
This study investigates the effect of simulated sport climbing finger grips on the resultant four fingertip force and the rate of fatigue of finger flexor muscles. Six elite sport climbers sat on a chair with the right forearm placed in a handgrip dynamometer modified so that only the fingertips applied direct force. They were asked to perform thre...
Article
We studied the anticipatory postural adjustments (APAs) associated with a voluntary rocking on heels movement performed in a self-paced manner. Ground reaction forces and the EMG activity of the leg muscles were recorded. Such a movement shifted the centre of gravity (CG) backwards, due to APAs on the lower limbs. It is generally assumed that APAs...
Article
This study examined the influence of the addition of handles on postural adjustments associated to a rocking on heels movement. Upper and lower limb muscle EMG activities were recorded and the forces applied to the handles and beneath the feet were measured. Without handles, the anticipatory activation of the Gastrocnemius Medialis displaced the CO...
Article
The present series of experiments were conducted to access the surface EMG frequency parameters during repeated fingertip isometric contractions to determine if they can be used as a fatigue index under specific grip used in rock climbing. Electromyograms of the finger flexors and extensors were characterised in ten elite climbers and ten non-climb...
Article
To study the forces applied by each finger in different joint postures simulating rock climbing gripping postures. Subjects in sitting posture applied fingertip forces perpendicular to horizontal force sensors in three different finger postures. Data provided by the literature indicate that middle and ring finger are commonly injured. However, no q...
Article
This study analyses the reaction forces and variations of rock climbing in vertical and overhanging positions. Subjects voluntarily released their right foot and regained equilibrium. In the overhanging position the quadrupedal state was characterised by a significant involvement of the arms to prevent fall. Moreover, the horizontal forces applied...
Article
Full-text available
The authors' goal was to identify the control mechanisms used by long jumpers (N = 6) to precisely position their foot at the board. In addition to the intertrial method usually used in previous research, an original method based on a trial-by-trial analysis was also implemented. If the approach to the board in long jumping encompasses two distinct...
Article
One of the main objectives of the experiment reported in this article was to analyze the arrangement of the forces applied to the holds accompanying a voluntary right foot release in the hanging rock climber. The three dimensional reaction forces applied to the holds were measured using four holds equipped with strain gauges. The force arrangement...
Article
This study reports on rock climbers biomechanical adjustments following a leg release from a quadrupedal vertical initial stance. Six climbers of international level have been studied. They were asked to maintain a quadrupedal posture on artificial holds equipped with strain gauges and then to release their right foot. The results show that all the...
Article
This paper describes three-dimensional force data collected during postural shifts performed by individuals simulating rock climbing skills. Starting from a quadrupedal vertical posture, six expert climbers had to release their right footholds and maintain the posture for a few seconds. The analysis of the vertical and the horizontal forces (latera...