E. Berton - Academia.edu (original) (raw)

Papers by E. Berton

Research paper thumbnail of 565 Prognostic role of cardiopulmonary exercise indexes in patients with heart failure receiving beta-blockers

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of New directions offered by the dynamical systems approach to bimanual coordination for therapeutic intervention and research in stroke

Nonlinear dynamics, psychology, and life sciences, 2010

In the present paper, we review the main concepts of the dynamical systems approach to bimanual c... more In the present paper, we review the main concepts of the dynamical systems approach to bimanual coordination and propose applications to therapeutic intervention for functional recovery of coordinated movements in stroke. Further, we describe the behavioral alterations of discrete bimanual coordination resulting from cerebral vascular accident (CVA) lesions and speculate on the possibility of mimicking the mechanisms of CVA lesions via symmetry breaking in dynamic systems.

Research paper thumbnail of Exercise physiology in COPD

Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace / Fondazione clinica del lavoro, IRCCS [and] Istituto di clinica tisiologica e malattie apparato respiratorio, Università di Napoli, Secondo ateneo

Multiple mechanisms contribute to exercise limitation in chronic obstructive pulmonary disease (C... more Multiple mechanisms contribute to exercise limitation in chronic obstructive pulmonary disease (COPD). The ability to increase ventilation during exercise is reduced; the more advanced the disease, the more impaired the exercise tolerance is. However, factors other than ventilatory limitation play an important role in reducing the exercise capacity in COPD. Data implicating peripheral muscle atrophy and muscle weakness as cofactors have been reported in individuals with advanced disease. At this stage daily activities are curtailed to avoid exertional respiratory discomfort. Recent studies have demonstrated that the muscle aerobic capacity of stable hypoxemic COPD patients is impaired; oxygen uptake (V'O2) kinetics and 31P magnetic resonance spectroscopy studies have shown that these patients rely heavily on non-aerobic energy sources even during moderate, sustained workloads. Finally, early occurrence of metabolic acidosis has been demonstrated in patients with mild to severe C...

Research paper thumbnail of 716 Prognostic role of circulatory power in patients with idiopathic dilated cardiomiopathy

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of EMG-based estimation of muscular efforts exerted during human movements

Movement & Sport Sciences - Science & Motricité, 2012

... David Amarantini1,2, Guillaume Rao3, Luc Martin4, Violaine Cahouët4 and Eric Berton3 1 PRISSM... more ... David Amarantini1,2, Guillaume Rao3, Luc Martin4, Violaine Cahouët4 and Eric Berton3 1 PRISSMH EA 4561, Université Paul Sabatier Toulouse 3 ... is to associate numerical optimization with the use of electromyographic (EMG) signals (Cholewicki & McGill, 1994; Lloyd & Besier ...

Research paper thumbnail of Shoe drop has opposite influence on running pattern when running overground or on a treadmill

European Journal of Applied Physiology, 2014

Research paper thumbnail of Does wearing shoes affect your biomechanical efficiency?

Journal of Biomechanics, 2015

Studies involving minimalist shoes have dramatically increased this past 10 years. While a deeper... more Studies involving minimalist shoes have dramatically increased this past 10 years. While a deeper knowledge of the related modifications has ensued regarding the kinematics, electromyographic, and dynamic patterns, little is known regarding the modifications at the muscle forces and muscle fiber levels. The aim of the present study was to assess at a muscular level the modifications brought up when running barefoot, using 0mm midsole height running shoe, or using classical midsole height running shoes. An EMG-Driven model that combines the kinematics, dynamics, and electromyographic data was used to estimate the Triceps Surae (TS) muscle forces and fiber behavior during running using different footwear conditions. Despite differences at the joint level between barefoot and shod running when looking at ankle joint range of motion, or foot-ground angle at touchdown, the results showed no effect of footwear neither on the maximal muscle forces nor on the relative amount of force produced by each muscle within the TS muscle group when wearing different footwear. On the contrary, different behaviors of muscle fibers were shown with lower amplitudes of fiber lengths for the Gastrocnemii biarticular muscles when running barefoot. This particular results reveal that wearing a shoe, even with a very thin sole, could deeply modify the intricate muscle-tendon mechanics of running.

Research paper thumbnail of Does handle shape influence prehensile capabilities and muscle coordination?

Computer Methods in Biomechanics and Biomedical Engineering, 2014

Research paper thumbnail of Prognostic role of pVO2 in 2011 in an unselected Italian population with cardiac disease

Research paper thumbnail of 564 Patients affected by heart failure with peak oxygen consumption between 10-18 ml/kg/min: cardiopulmonary test offers additional parameters for a better prognostic stratification?

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of Potential effects of racket grip size on lateral epicondilalgy risks

Scandinavian Journal of Medicine & Science in Sports, 2014

Research paper thumbnail of Is Fitts’ Law Continuous in Discrete Aiming?

Research paper thumbnail of Skeletal muscle dysfunction in chronic obstructive pulmonary disease

Medicine and Science in Sports and Exercise, 2001

Research paper thumbnail of Quantification of finger joint loadings using musculoskeletal modelling clarifies mechanical risk factors of hand osteoarthritis

Medical Engineering & Physics, 2014

Research paper thumbnail of Influence of Task Constraints and Device Properties on Motor Patterns in a Realistic Control Situation

Journal of Motor Behavior, 2014

Research paper thumbnail of Influence of muscular fatigue on agonist and antagonist muscle groups moments during loaded squats

Journal of Biomechanics, 2006

Research paper thumbnail of Influence of body segments’ parameters estimation models on inverse dynamics solutions during gait

Journal of Biomechanics, 2006

Research paper thumbnail of Young girl with apical ballooning heart syndrome

International Journal of Cardiology, 2012

Research paper thumbnail of A 3-D finite element model of the foot-shoe structure during a walking cycle for shoe sole design

Research paper thumbnail of Non-invasive evaluation of gas exchange during a shuttle walking test vs. a 6-min walking test to assess exercise tolerance in COPD patients

European Journal of Applied Physiology, 2003

Walking tests, such as the &a... more Walking tests, such as the "shuttle" incremental walking test (SWT) and the 6-min walking test (6'WT), are commonly utilized in evaluating exercise intolerance in patients with chronic obstructive pulmonary disease (COPD) and the distance covered is the variable usually considered. Because lung gas exchange indexes are not measured, little is known about the physiological response elicited by different walking protocols. We compared exercise adaptation during the 6'WT and SWT in 13 male stable COPD patients [mean (SE) age: 70 (1) years; forced expiratory volume in 1 s (FEV(1)): 1.2 (0.1) l; arterial O(2) tension (PaO(2)): 72 (2) mmHg; arterial CO(2) tension (PaCO(2)): 41 (1) mmHg]. Oxygen uptake (.VO(2)), CO(2) output (.VCO(2)), minute ventilation (.V(E)), and heart rate (HR) were monitored by a portable telemetric system. During the SWT a linear response in lung gas exchange indexes was observed while, during the 6'WT, the response was exponential. During the 6'WT, .VO(2), .VCO(2), .V(E), and HR values at steady-state (SS) were significantly lower compared to SWT peak values. For SWT, distance covered correlated with .VO(2PEAK), (R=0.86, p<0.001), .VCO(2PEAK), (R=0.87, p<0.001) and .V(EPEAK) (R=0.74, p<0.01); moreover, distance and .VO(2PEAK) were significantly correlated with peak .VO(2) values obtained during cycle ergometer incremental exercise (R=0.72, p<0.01 and R=0.92, p<0.0001, respectively). For 6'WT, the distance covered did not correlate with any pertinent physiological index. The two walking protocols reveal substantial differences in pathophysiologic adaptations and provide evidence that SWT is more accurate than the 6'WT in the evaluation of maximal exercise tolerance in COPD patients.

Research paper thumbnail of 565 Prognostic role of cardiopulmonary exercise indexes in patients with heart failure receiving beta-blockers

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of New directions offered by the dynamical systems approach to bimanual coordination for therapeutic intervention and research in stroke

Nonlinear dynamics, psychology, and life sciences, 2010

In the present paper, we review the main concepts of the dynamical systems approach to bimanual c... more In the present paper, we review the main concepts of the dynamical systems approach to bimanual coordination and propose applications to therapeutic intervention for functional recovery of coordinated movements in stroke. Further, we describe the behavioral alterations of discrete bimanual coordination resulting from cerebral vascular accident (CVA) lesions and speculate on the possibility of mimicking the mechanisms of CVA lesions via symmetry breaking in dynamic systems.

Research paper thumbnail of Exercise physiology in COPD

Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace / Fondazione clinica del lavoro, IRCCS [and] Istituto di clinica tisiologica e malattie apparato respiratorio, Università di Napoli, Secondo ateneo

Multiple mechanisms contribute to exercise limitation in chronic obstructive pulmonary disease (C... more Multiple mechanisms contribute to exercise limitation in chronic obstructive pulmonary disease (COPD). The ability to increase ventilation during exercise is reduced; the more advanced the disease, the more impaired the exercise tolerance is. However, factors other than ventilatory limitation play an important role in reducing the exercise capacity in COPD. Data implicating peripheral muscle atrophy and muscle weakness as cofactors have been reported in individuals with advanced disease. At this stage daily activities are curtailed to avoid exertional respiratory discomfort. Recent studies have demonstrated that the muscle aerobic capacity of stable hypoxemic COPD patients is impaired; oxygen uptake (V'O2) kinetics and 31P magnetic resonance spectroscopy studies have shown that these patients rely heavily on non-aerobic energy sources even during moderate, sustained workloads. Finally, early occurrence of metabolic acidosis has been demonstrated in patients with mild to severe C...

Research paper thumbnail of 716 Prognostic role of circulatory power in patients with idiopathic dilated cardiomiopathy

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of EMG-based estimation of muscular efforts exerted during human movements

Movement & Sport Sciences - Science & Motricité, 2012

... David Amarantini1,2, Guillaume Rao3, Luc Martin4, Violaine Cahouët4 and Eric Berton3 1 PRISSM... more ... David Amarantini1,2, Guillaume Rao3, Luc Martin4, Violaine Cahouët4 and Eric Berton3 1 PRISSMH EA 4561, Université Paul Sabatier Toulouse 3 ... is to associate numerical optimization with the use of electromyographic (EMG) signals (Cholewicki & McGill, 1994; Lloyd & Besier ...

Research paper thumbnail of Shoe drop has opposite influence on running pattern when running overground or on a treadmill

European Journal of Applied Physiology, 2014

Research paper thumbnail of Does wearing shoes affect your biomechanical efficiency?

Journal of Biomechanics, 2015

Studies involving minimalist shoes have dramatically increased this past 10 years. While a deeper... more Studies involving minimalist shoes have dramatically increased this past 10 years. While a deeper knowledge of the related modifications has ensued regarding the kinematics, electromyographic, and dynamic patterns, little is known regarding the modifications at the muscle forces and muscle fiber levels. The aim of the present study was to assess at a muscular level the modifications brought up when running barefoot, using 0mm midsole height running shoe, or using classical midsole height running shoes. An EMG-Driven model that combines the kinematics, dynamics, and electromyographic data was used to estimate the Triceps Surae (TS) muscle forces and fiber behavior during running using different footwear conditions. Despite differences at the joint level between barefoot and shod running when looking at ankle joint range of motion, or foot-ground angle at touchdown, the results showed no effect of footwear neither on the maximal muscle forces nor on the relative amount of force produced by each muscle within the TS muscle group when wearing different footwear. On the contrary, different behaviors of muscle fibers were shown with lower amplitudes of fiber lengths for the Gastrocnemii biarticular muscles when running barefoot. This particular results reveal that wearing a shoe, even with a very thin sole, could deeply modify the intricate muscle-tendon mechanics of running.

Research paper thumbnail of Does handle shape influence prehensile capabilities and muscle coordination?

Computer Methods in Biomechanics and Biomedical Engineering, 2014

Research paper thumbnail of Prognostic role of pVO2 in 2011 in an unselected Italian population with cardiac disease

Research paper thumbnail of 564 Patients affected by heart failure with peak oxygen consumption between 10-18 ml/kg/min: cardiopulmonary test offers additional parameters for a better prognostic stratification?

European Journal of Heart Failure Supplements, 2007

Research paper thumbnail of Potential effects of racket grip size on lateral epicondilalgy risks

Scandinavian Journal of Medicine & Science in Sports, 2014

Research paper thumbnail of Is Fitts’ Law Continuous in Discrete Aiming?

Research paper thumbnail of Skeletal muscle dysfunction in chronic obstructive pulmonary disease

Medicine and Science in Sports and Exercise, 2001

Research paper thumbnail of Quantification of finger joint loadings using musculoskeletal modelling clarifies mechanical risk factors of hand osteoarthritis

Medical Engineering & Physics, 2014

Research paper thumbnail of Influence of Task Constraints and Device Properties on Motor Patterns in a Realistic Control Situation

Journal of Motor Behavior, 2014

Research paper thumbnail of Influence of muscular fatigue on agonist and antagonist muscle groups moments during loaded squats

Journal of Biomechanics, 2006

Research paper thumbnail of Influence of body segments’ parameters estimation models on inverse dynamics solutions during gait

Journal of Biomechanics, 2006

Research paper thumbnail of Young girl with apical ballooning heart syndrome

International Journal of Cardiology, 2012

Research paper thumbnail of A 3-D finite element model of the foot-shoe structure during a walking cycle for shoe sole design

Research paper thumbnail of Non-invasive evaluation of gas exchange during a shuttle walking test vs. a 6-min walking test to assess exercise tolerance in COPD patients

European Journal of Applied Physiology, 2003

Walking tests, such as the &a... more Walking tests, such as the "shuttle" incremental walking test (SWT) and the 6-min walking test (6'WT), are commonly utilized in evaluating exercise intolerance in patients with chronic obstructive pulmonary disease (COPD) and the distance covered is the variable usually considered. Because lung gas exchange indexes are not measured, little is known about the physiological response elicited by different walking protocols. We compared exercise adaptation during the 6'WT and SWT in 13 male stable COPD patients [mean (SE) age: 70 (1) years; forced expiratory volume in 1 s (FEV(1)): 1.2 (0.1) l; arterial O(2) tension (PaO(2)): 72 (2) mmHg; arterial CO(2) tension (PaCO(2)): 41 (1) mmHg]. Oxygen uptake (.VO(2)), CO(2) output (.VCO(2)), minute ventilation (.V(E)), and heart rate (HR) were monitored by a portable telemetric system. During the SWT a linear response in lung gas exchange indexes was observed while, during the 6'WT, the response was exponential. During the 6'WT, .VO(2), .VCO(2), .V(E), and HR values at steady-state (SS) were significantly lower compared to SWT peak values. For SWT, distance covered correlated with .VO(2PEAK), (R=0.86, p<0.001), .VCO(2PEAK), (R=0.87, p<0.001) and .V(EPEAK) (R=0.74, p<0.01); moreover, distance and .VO(2PEAK) were significantly correlated with peak .VO(2) values obtained during cycle ergometer incremental exercise (R=0.72, p<0.01 and R=0.92, p<0.0001, respectively). For 6'WT, the distance covered did not correlate with any pertinent physiological index. The two walking protocols reveal substantial differences in pathophysiologic adaptations and provide evidence that SWT is more accurate than the 6'WT in the evaluation of maximal exercise tolerance in COPD patients.