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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:ID Grosprêtre, Sidney (Author)
ID Marušič, Uroš (Author)
ID Gimenez, Philippe (Author)
ID Ennequin, Gael (Author)
ID Mourot, Laurent (Author)
ID Isacco, Laurie (Author)
Files:.pdf PDF - Presentation file, download (1,82 MB)
MD5: 98355D5440B2C2C8D47BC0E28F1AC51C
URL URL - Source URL, visit
URL URL - Source URL, visit
Typology:1.01 - Original Scientific Article
Organization: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
Publication status in journal:Published
Article version:Publisher's version of article
Year of publishing:2021
Number of pages:str. 1-19
Numbering:Vol. 12, art. 762452
PID:20.500.12556/DiRROS-14639 New window
ISSN on article:1664-042X
DOI:10.3389/fphys.2021.762452 New window
COBISS.SI-ID:86554115 New window
Copyright:© 2021 Grosprêtre, Marusic, Gimenez, Ennequin, Mourot and Isacco
Note:Nasl. z nasl. zaslona; Soavtorji: Uros Marusic, Philippe Gimenez, Gael Ennequin, Laurent Mourot, Laurie Isacco; Opis vira z dne 25. 11. 2021;
Publication date in DiRROS:29.11.2021
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Record is a part of a journal

Title:Frontiers in physiology
Shortened title:Front. physiol.
Publisher:Frontiers Research Foundation
COBISS.SI-ID:1218939 New window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
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

Secondary language

Keywords:telesna aktivnost, srčni utrip, poraba kisika, VO2, pritisk, H-refleks, elektromiografija