Brain Functional Connectivity Is Different during Voluntary Concentric and Eccentric Muscle Contraction

Brain Functional Connectivity Is Different during Voluntary Concentric and Eccentric Muscle Contraction

Previous studies report greater activation in the cortical motor network in controlling eccentric contraction (EC) than concentric contraction (CC) of human skeletal muscles despite lower activation level of the muscle associated with EC. It is unknown, however, whether the strength of functional coupling between the primary motor cortex (M1) and other involved areas in the brain differs as vol...

Concentric and Eccentric: Muscle Contraction or Exercise?

1 Faculty of Medicine and Surgery, University of “Tor Vergata” Rome (Italy). 2 SPO Sport Performance Optimization Lab, CNMSS, Tunis (Tunisia) 3 UR CIAMS – Motor Control and Perception Group, Sport Sciences Department, Université Paris-Sud, Orsay (France). 4 School of Exercise and Sport Science, University of Verona (Italy). 5 Orthopaedic and Sports Medicine Hospital, Doha (Qatar). Authors subm...

Concentric and eccentric: muscle contraction or exercise? New perspective.

1 Sport Science, University e-Campus, Novedrate, Italy 2 Tunisian Research Laboratory “Sports Performance Optimization”, National Center of Medicine and Science in Sport, Tunis, Tunisia 3 Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar 4 Department of Medical Sciences, Sports Physiology Lab, University of Cagliari, Italy 5 Cen...

Evoked H-reflex and V-wave responses during maximal isometric, concentric, and eccentric muscle contraction.

This study was designed to investigate the modulations of H-reflex and V-wave responses during passive and maximal active dynamic actions. Experiments were performed on 16 healthy males [age: 24 +/- 4 (SD) yr]. Maximal H-reflexes (Hmax) and M-waves (MmaxR) were evoked at the same muscle length during passive isometric, shortening and lengthening actions and during maximal voluntary isometric, c...

Functional Significance of Force Fluctuation During Voluntary Muscle Contraction