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Title:Stand up to excite the spine : neuromuscular, autonomic, and cardiometabolic responses during motor imagery in standing vs. sitting posture
Authors:Grosprêtre, Sidney (Author)
Marušič, Uroš (Author)
Gimenez, Philippe (Author)
Ennequin, Gael (Author)
Mourot, Laurent (Author)
Isacco, Laurie (Author)
Language:English
Tipology:1.01 - Original Scientific Article
Organisation:Logo ZRS Koper - Science and Research Centre Koper
Abstract:Motor imagery (MI) for health and performance strategies has gained interest in recent decades. Nevertheless, there are still no studies that have comprehensively investigated the physiological responses during MI, and no one questions the influence of low-level contraction on these responses. Thus, the aim of the present study was to investigate the neuromuscular, autonomic nervous system (ANS), and cardiometabolic changes associated with an acute bout of MI practice in sitting and standing condition. Twelve young healthy males (26.3 % 4.4 years) participated in two experimental sessions (control vs. MI) consisting of two postural conditions (sitting vs. standing). ANS, hemodynamic and respiratory parameters, body sway parameters, and electromyography activity were continuously recorded, while neuromuscular parameters were recorded on the right triceps surae muscles before and after performing the postural conditions. While MI showed no effect on ANS, the standing posture increased the indices of sympathetic system activity and decreased those of the parasympathetic system (p < 0.05). Moreover, MI during standing induced greater spinal excitability compared to sitting posture (p < 0.05), which was accompanied with greater oxygen consumption, energy expenditure, ventilation, and lower cardiac output (p < 0.05). Asking individuals to perform MI of an isometric contraction while standing allows them to mentally focus on the motor command, not challenge balance, and produce specific cardiometabolic responses. Therefore, these results provide further evidence of posture and MI-related modulation of spinal excitability with additional autonomic and cardiometabolic responses in healthy young men.
Keywords:heart rate, oxygen uptake, VO2, H-reflex, elektromyography
Year of publishing:2021
COBISS_ID:86554115 Link is opened in a new window
UDC:796.012.1:612
ISSN on article:1664-042X
DOI:10.3389/fphys.2021.762452 Link is opened in a new window
Note:Nasl. z nasl. zaslona; Soavtorji: Uros Marusic, Philippe Gimenez, Gael Ennequin, Laurent Mourot, Laurie Isacco; Opis vira z dne 25. 11. 2021;
Views:266
Downloads:172
Files:.pdf PDF - Presentation file, download (1,82 MB)
URL URL - Source URL, visit https://www.frontiersin.org/articles/10.3389/fphys.2021.762452/full
 
Journal:Front. physiol.
Frontiers Research Foundation
 
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Rights:© 2021 Grosprêtre, Marusic, Gimenez, Ennequin, Mourot and Isacco
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:23.11.2021

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