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Vigouroux N, Campo E, Vella F, Caroux L, Sacher M, Istrate D, Lompre N, Gorce P, Jacquier-Bret J, Pinede N, Serpa A, Van den Bossche A. Multimodal Observation Method of Digital Accessibility for Elderly People. Ing Rech Biomed 2021. [DOI: 10.1016/j.irbm.2020.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2
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Affiliation(s)
- T. Dhieb
- REGIM-Lab.: Research Groups in Intelligent Machines, University of Sfax, Sfax, Tunisia
| | - N. Rezzoug
- AUCTUS Team, INRIA Bordeaux, Université de Toulon, Toulon, France
| | - H. Boubaker
- REGIM-Lab.: Research Groups in Intelligent Machines, University of Sfax, Sfax, Tunisia
| | - P. Gorce
- AUCTUS Team, INRIA Bordeaux, Université de Toulon, Toulon, France
| | - A. M. Alimi
- REGIM-Lab.: Research Groups in Intelligent Machines, University of Sfax, Sfax, Tunisia
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Ben Mansour K, Gorce P, Rezzoug N. The effect of regular walking with poles on the gait of elderly. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1714993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - P. Gorce
- Université de Toulon, La Garde Cedex, France
| | - N. Rezzoug
- Université de Toulon, La Garde Cedex, France
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Pickard JK, Rezzoug N, Gorce P, Daney D. Redundancy tubes: modelling individual and group range-of-motions along a path. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1714237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- J. K. Pickard
- Inria Bordeaux Sud-Ouest – Auctus Team, Talence, France
| | - N. Rezzoug
- University of Toulon (External Members of Auctus Team), Toulon, France
| | - P. Gorce
- University of Toulon (External Members of Auctus Team), Toulon, France
| | - D. Daney
- Inria Bordeaux Sud-Ouest – Auctus Team, Talence, France
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Rezzoug N, Gorce P. Relationship between jerk at the L3/L4 intervertebral level and COP mean velocity in bipedal and unipedal standing conditions. Comput Methods Biomech Biomed Engin 2015; 18:2040-2041. [DOI: 10.1080/10255842.2015.1069612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- N. Rezzoug
- HandiBio EA4322, Université de Toulon, La Garde Cedex, France
| | - P. Gorce
- HandiBio EA4322, Université de Toulon, La Garde Cedex, France
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Affiliation(s)
- K Ben Mansour
- a HandiBio EA4322 , Université de Toulon , La Garde Cedex , France
| | - N Rezzoug
- a HandiBio EA4322 , Université de Toulon , La Garde Cedex , France
| | - P Gorce
- a HandiBio EA4322 , Université de Toulon , La Garde Cedex , France
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Jacquier-Bret J, Gorce P, Motti LG, Vigouroux N. Biomechanical analysis of interaction strategies using touchscreen: preliminary study. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:86-7. [PMID: 25074177 DOI: 10.1080/10255842.2014.931152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- J Jacquier-Bret
- a Laboratoire HandiBio, EA 4322, Université de Toulon, Avenue de l'Université, 83957 La Garde Cedex , France
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Affiliation(s)
- A Rouis
- a HandiBio EA 4322 , Université de Toulon , BP 20132, 83957 , La Garde , France
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Ben Mansour K, Rezzoug N, Jacquier-Bret J, Gorce P. Validation of a low-cost wearable accelerometer for temporal gait parameter quantification. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:160-1. [PMID: 25074214 DOI: 10.1080/10255842.2014.931623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- K Ben Mansour
- a HandiBio EA4322 , Université de Toulon, HandiBio EA4322 , 83957 , La Garde Cedex , France
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Chauvineau V, Hardy E, Copello M, Rezzoug N, Louis N, Gorce P, Queruel P. Burned hand: Is there a relationship between cutaneous sensory loss and functional ability? Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chauvineau V, Hardy E, Copello M, Rezzoug N, Louis N, Gorce P, Queruel P. Main brûlée : y a-t-il une influence des troubles sensitifs cutanés sur la préhension ? Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Affiliation(s)
- C Hansen
- Univ Paris-Sud, URCIAMS - Motor Control & Perception Team, F-91405 Orsay, France.
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Hansen C, Rezzoug N, Gorce P, Venture G, Isableu B. Rotation axes in overarm throwing. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:70-1. [DOI: 10.1080/10255842.2013.815963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rezzoug N, Hernandez V, Jacquier-Bret J, Gorce P. Comparison between model-based and measured force polytopes: towards isometric force capacity evaluation. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:172-4. [DOI: 10.1080/10255842.2013.815972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ben Mansour K, Rezzoug N, Gorce P. Accelerometric signal during gait: cut-off frequency as a function of movement speed and sensor location. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:68-9. [DOI: 10.1080/10255842.2013.815962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rezzoug N, Jacquier-Bret J, Gorce P. Joint intra-individual variability simulation based on UCM hypothesis. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:75-7. [DOI: 10.1080/10255842.2013.815970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Louis N, Gorce P. Evaluation of wheelchair user's upper limb kinematics during throwing activities: a preliminary study. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:116-7. [DOI: 10.1080/10255842.2013.815841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Jacquier-Bret J, Rezzoug N, Gorce P. Effect of spinal cord injury at C6–C7 on global upper-limb coordination during grasping: Manipulability approach. Ing Rech Biomed 2013. [DOI: 10.1016/j.irbm.2012.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rezzoug N, Jacquier-Bret J, Hernandez V, Gorce P. Biomechanical versus robotic indices to assess isometric force generation capabilities. Comput Methods Biomech Biomed Engin 2012; 15 Suppl 1:153-5. [DOI: 10.1080/10255842.2012.713717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gorce P, Louis N. Wheelchair propulsion kinematics in beginners and expert users: influence of wheelchair settings. Clin Biomech (Bristol, Avon) 2012; 27:7-15. [PMID: 21840091 DOI: 10.1016/j.clinbiomech.2011.07.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 06/07/2011] [Accepted: 07/19/2011] [Indexed: 02/07/2023]
Abstract
BACKGROUND Biomechanical studies have linked the handrim wheelchair propulsion with a prevalence of upper limb musculoskeletal disorders. The purpose of this study was to examine the influence of the wheelchair settings on upper limb kinematics during wheelchair propulsion. Recordings were made under various wheelchair configuration conditions to understand the effect of wheelchair settings on kinematics parameters such shoulder, elbow and wrist angles. METHODS Ten experts and ten beginners' subjects propelled an experimental wheelchair on a roller ergometer system at a comfortable speed. Twelve wheelchair configurations were tested. Kinematics were recorded for each configuration. Based on the hand position relatively to the handrim, the main kinematic parameters of wheelchair propulsion were investigated on the whole propulsion cycle and a key event such as handrim contact and release. FINDINGS Compared to the beginner subjects, all the experts' subjects generally present higher joint amplitude and propulsion speeds. Seat height and antero-posterior axle position influence usage of the hand-rim, timing parameters and configurations of upper limb joints. Results seem to confirm that low and backward seat position allow a greater efficiency. Nevertheless, according that proximity of joint limit is a well known factor of musculoskeletal disorders, our results let us think that too low and backward seat position, increasing joints positions and amplitudes, could increase the risk of upper limb injuries in relation with manual wheelchair propulsion. INTERPRETATION Kinematic differences highlight that future studies on wheelchair propulsion should only be done with impaired experienced subjects. Furthermore, this study provides indications on how wheelchair settings can be used for upper limb injury prevention.
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Affiliation(s)
- P Gorce
- Université du Sud-Toulon-Var, La garde cedex, France.
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Debril JF, Pudlo P, Simoneau E, Pradon D, Dessery Y, Gorce P, Lepoutre FX. Influence of body segment masses on articular efforts computation for lateral transfer movement of a paraplegic individual. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.595202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Rezzoug N, Jacquier-Bret J, Gorce P. A method for estimating three-dimensional human arm movement with two electromagnetic sensors. Comput Methods Biomech Biomed Engin 2011; 13:663-8. [PMID: 21153971 DOI: 10.1080/10255840903405652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Measurement of upper-limb movements is important in various domains. In this article, an upper-limb three-dimensional movement recording technique is proposed based on only two electromagnetic sensors. Two joints are considered with a total of seven degrees of freedom (DoF; three translations and four rotations). The chosen sequence of joint rotations is compliant with ISB recommendations: the shoulder is modelled with a ball and socket joint with three DoF and the elbow with a one DoF revolute joint. This article is focused on the procedure used to calibrate and sense the upper-limb movements from the raw data coming from the flock of birds sensors. The principle of the method is to define the centre of the wrist, elbow and shoulder joints in the frame of the adequate sensor. This operation is done by performing calibration gestures. Results are proposed and commented.
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Affiliation(s)
- N Rezzoug
- Universite du Sud Toulon-Var, Handibio, La Garde, France
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Reghem E, Pouydebat E, Gorce P, Bels V. A biomechanics comparison of grasping in locomotion and feeding with the mouse lemur (Microcebus murinus, Primate): a study case. Comput Methods Biomech Biomed Engin 2010; 13:121-33. [DOI: 10.1080/10255842.2010.495593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jacquier-Bret J, Rezzoug N, Gorce P. Manipulability of the upper limb during grasping. Comput Methods Biomech Biomed Engin 2010. [DOI: 10.1080/10255842.2010.493729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pouydebat E, Reghem E, Mestre-Frances N, Gorce P. Validation of a prosimian model for the study of the grasping disorders in Parkinson's disease: a preliminary report. Comput Methods Biomech Biomed Engin 2010. [DOI: 10.1080/10255842.2010.495584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jacquier-Bret J, Rezzoug N, Vallier JM, Tournebise H, Gorce P. Reach to grasp kinematics and EMG analysis of C6 quadriplegic subjects. Annu Int Conf IEEE Eng Med Biol Soc 2010; 2009:5934-7. [PMID: 19965061 DOI: 10.1109/iembs.2009.5334747] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of the present study was to assess the kinematics and the muscular activity of the upper limb of subjects suffering from a spinal cord injury (SCI) at the C6 level during a grasping task. Data were compared to a control group composed of able-bodied subjects. The electrical activity of six major upper limb muscles and 3D motion of the arm were recorded. Results showed higher relative muscular solicitation for C6 patients especially for deltoïdus posterior and the pectoralis major and modifications of the range of motion of the corresponding joint angles. It appeared that, for C6 SCI subjects, the role of shoulder complex is highly relevant to initiate and control upper extremity movement, and so is important for their autonomy. Such data may be used to help clinician in decision making, e.g. for reconstructive surgery by musculotendinous transfer.
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Affiliation(s)
- J Jacquier-Bret
- HandiBio laboratory (EA 4322), Université du Sud-Toulon-Var, Avenue de léUniversité BP 20132, 83957 La Garde CEDEX, France.
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Pouydebat E, Reghem E, Gorce P, Bels V. Influence of the Task on Hand Preference: Individual Differences among Gorillas (Gorilla gorilla gorilla). Folia Primatol (Basel) 2010; 81:273-81. [DOI: 10.1159/000322552] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 11/04/2010] [Indexed: 11/19/2022]
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Abstract
Several statements by Pouydebat et al. (2008) do not adequately represent views of authors cited, in part because they reflect confusion in the literature about terminology regarding precision gripping. We address these problems, by tracing definitions of precision grips through the literature on manipulative behaviour and identifying the grip that is central to the Pouydebat et al. (2008) study. This allows us to offer a clarification of the statements by Pouydebat et al. (2008) regarding the sequence of appearance of human grip capabilities and possible morphological correlates to these capabilities in extant species.
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Affiliation(s)
- M W Marzke
- School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287-2402, USA.
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Louis N, Gorce P. Upper limb muscle forces during a simple reach-to-grasp movement: a comparative study. Med Biol Eng Comput 2009; 47:1173-9. [PMID: 19784682 DOI: 10.1007/s11517-009-0530-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Accepted: 09/02/2009] [Indexed: 11/30/2022]
Abstract
Muscle force knowledge during reaching is an important research field and tools development for measuring those forces is a challenging task, especially for clinical routines. The purpose of this study was, during a simple reach-to-grasp movement, to compare forces estimation from a Hill-type model and from the EMG-to-Force Processing (EFP) method. Ten healthy male volunteers were tested. Surface EMG signals were recorded from deltoid scapular, deltoid clavicular, triceps brachii, and biceps brachii. Ten repeated measures of right upper limb kinematics had been recorded. Three reaching distances were tested: 20, 30, and 40 cm. Muscle activations were calculated and forces were estimated by the two methods. Correlations and low RMS error found between the two methods indicate that EFP is a good way to estimate muscle forces for this kind of movement. This knowledge is essential in order to integrate these forces in reaching models developed nowadays in robotic, rehabilitation, and ergonomics field of research.
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Affiliation(s)
- N Louis
- Laboratoire Handibio, EA 4322, Université du Sud-Toulon-Var, Avenue de l'université, BP 20132, 83957, La Garde Cedex, France.
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Roux M, Baly L, Gorce P. Effects of the walking speed on the foot movements within a shoe during the stance phase. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903093961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Pouydebat E, Gorce P, Bels V. Do adults or young chimpanzees and humans have similar abilities to grasp objects? Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903093425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Geronomi M, Gorce P. Compensatory trunk flexion in elderly reach-to-grasp movement. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903080869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Debril JF, Pudlo P, Gorce P, Lepoutre F. Experimental platform to assess the sitting pivot transfer movements. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903077279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Louis N, Gorce P. Wheelchair kinematics simulation for upper limb musculoskeletal disorder prevention. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903091452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jacquier-Bret J, Rezzoug N, Vallier J, Tournebise H, Gorce P. How do C6–C7 quadriplegic subjects compensate for motor deficiency during reach-to-grasp? Kinematics and EMG analysis. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903091338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Geronimi M, Pouydebat E, Gorce P. Nintendo Wii Fit Board used like a tool in biomechanical studies? Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903080877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Isableu B, Rezzoug N, Mallet G, Gorce P, Pagano C. Axes of rotation in the non-visual control of unconstrained 3D multijoint movements. Comput Methods Biomech Biomed Engin 2009. [DOI: 10.1080/10255840903081230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jacquier-Bret J, Rezzoug N, Gorce P. Synergies during reach-to-grasp: a comparative study between healthy and C6-C7 quadriplegic subjects. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2008:5366-9. [PMID: 19163930 DOI: 10.1109/iembs.2008.4650427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Analysis of functional capacities modifications after spinal cord injuries may have an interest in clinical rehabilitation programs. In this framework, this study is focused on the analysis of motor synergies i.e. how the upper-limb degrees of freedom (DOFS) are organized when considering C6-C7 quadriplegic subjects performing a reaching task. A previous work has shown that sharing patterns between DOFS are preserved. Using the uncontrolled manifold hypothesis (UCM), we investigate the second aspect of motor synergies i.e. how performance is allowed to show both stability against perturbations and flexibility to solve concurrent tasks. This procedure allows to evaluate the stabilization of a specific and selective performance variable through the variability of joint angles. In the present study, the wrist 3D path was considered and the variability of its trajectory is decomposed into two parts: one which does not affect the value of this performance variable (goal equivalent variance or GEV) and one which does (non goal equivalent variance or NGEV). Results showed that quadriplegic subjects present the same variance decomposition than healthy subjects suggesting that, despite the motor deficiency, flexibility is still allowed during movement execution.
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Affiliation(s)
- J Jacquier-Bret
- HandiBio laboratory (EA 4332), Université du Sud-Toulon-Var, Avenue de l'Université BP 20132, 83957 La Garde Cedex, France. jacquier@ univ-tln.fr
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Bonnefoy A, Louis N, Gorce P. Muscle activation during a reach-to-grasp movement in sitting position: influence of the distance. J Electromyogr Kinesiol 2008; 19:269-75. [PMID: 18585929 DOI: 10.1016/j.jelekin.2008.04.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 04/11/2008] [Accepted: 04/11/2008] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to examine the influence of the reach distance on the muscle activation during a reach-to-grasp movement in the sitting position. Ten healthy male volunteers were tested. Surface EMG were recorded for the deltoid scapular, the deltoid clavicular, the triceps brachii, the biceps brachii and the brachioradialis. These muscles have been selected for their contribution to the cylindrical palmar prehension motion in the sagittal plane. Three distances have been tested: 20, 30 and 40 cm. For each distance, ten repeated measures have been recorded. From this in vivo data, the repeatability of the protocol has been tested. For this, relative (ICC) and absolute (SEM) reliabilities are determined in order to evaluate the intra operator repeatability of this protocol. It appears that the ICC values obtained are between 0.78 and 0.99 in all the conditions (15 conditions corresponding to three distances and five muscles). The intra operator repeatability is thus confirmed. From these surface EMG recordings the muscle activations have been calculated as the iEMG value. It appears that the muscle activation is greater with increased distances. The results contribute to the identification of the levels of muscle activation amplitude during a simple reach-to-grasp movement that is common in prehension research. This knowledge is essential in order to calculate the muscle forces and to integrate these forces in the prehension models developed nowadays in the robotic, rehabilitation, ergonomics field of research.
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Affiliation(s)
- A Bonnefoy
- Université du Sud - Toulon Var, Laboratoire Handibio, Avenue de l'université, BP20132, 83957 La Garde Cedex, France.
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42
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Decoufour N, Pudlo P, Barbier F, Gorce P. Variations in expert rower coordination when rate increases on ergometer concept2®. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802296541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Geronimi M, Gorce P. Comparative angular variations between adult and elderly in prehension movement with obstacle. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802297150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Jacquier-Bret J, Rezzoug N, Gorce P. Reach-to-grasp: a comparative study between C6-C7 quadriplegic and healthy subjects. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802296434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Debril JF, Pudlo P, Gorce P, Lepoutre F. Joint moment determination for ergonomic simulation of reaching movement: PID controllers contribution. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802296574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Pedreño-Molina JL, Guerrero-González A, Calabozo-Moran J, López-Coronado J, Gorce P. A Neural Tactile Architecture Applied to Real-time Stiffness Estimation for a Large Scale of Robotic Grasping Systems. J INTELL ROBOT SYST 2007. [DOI: 10.1007/s10846-006-9040-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Jacquier-Bret J, Rezzoug N, Gorce P. Effect of spatial constraints on the underlying joint coordination during reach-to-grasp movements: UCM analysis. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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48
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Debril JF, Pudlo P, Gorce P, Thevenon A, Lepoutre FX. Assessment of the human articular efforts during an automobile vehicle accessibility movement. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701479354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Decoufour N, Pudlo P, Barbier F, Gorce P. Upper limb modelling for rowing movement: sterno-clavicular joint contribution. Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701478653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Roux M, Gorce P, Baly L. Could ground reaction forces be used to evaluate the stability of the shoe during locomotion? Comput Methods Biomech Biomed Engin 2007. [DOI: 10.1080/10255840701478786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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