Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men
Abstract Aim: To contrast the acute effects of whole-body electromyostimulation (WB-EMS) with sham associated with dynamic exercises on cardiovascular, ventilatory, metabolic, and autonomic responses in men with obesity and controls. Methods: A randomized cross-over and double-blind trial with nin...
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista (UNESP)
2021-11-01
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| Series: | Motriz: Revista de Educacao Fisica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000100600&tlng=en |
| _version_ | 1818009142946693120 |
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| author | Gabriela Cassemiliano Paula Angélica Ricci Soraia Pilon Jürgensen Bianca Cristina Domingos Audrey Borghi-Silva |
| author_facet | Gabriela Cassemiliano Paula Angélica Ricci Soraia Pilon Jürgensen Bianca Cristina Domingos Audrey Borghi-Silva |
| author_sort | Gabriela Cassemiliano |
| collection | DOAJ |
| description | Abstract Aim: To contrast the acute effects of whole-body electromyostimulation (WB-EMS) with sham associated with dynamic exercises on cardiovascular, ventilatory, metabolic, and autonomic responses in men with obesity and controls. Methods: A randomized cross-over and double-blind trial with nine eutrophic (23.6 years; 23 ± 1.4 kg/m2) and ten men with obesity (26 ± 4 years; 38 ± 7 kg/m2), who were randomized to receive WB-EMS-Sham or Sham-WB-EMS with 30 min of rest between protocols. WB-EMS protocol (Miha Bodytec®) was applied at the motor level, frequency = 85 Hz, pulse duration = 350 μs, cycle on = 6′; cycle off = 4′. Sham group performed the same exercises with the electric current turned off. Throughout both protocols, subjects executed two dynamic exercises of 5 minutes each (step-up and step down associated with shoulder flexion, and lunge exercise associated with elbow flexion) in the same order. R-R intervals and breath-by-breath respiratory gases analysis were collected during the protocols. Heart rate variability (HRV) indexes were obtained using linear and nonlinear analysis. The level of statistical significance was set at p < 0.05. Results: Regarding both exercises, participants with obesity presented reduced oxygen uptake, higher ventilation, respiratory rate, blood pressure, and Borg scores (p < 0.05) when contrasted with controls, as expected. However, no significant differences were found for HRV indexes between groups (p > 0.05). In addition, WB-EMS did not increase oxygen uptake or altered autonomic modulation when contrasted with sham in both groups (p < 0.05). Conclusion: Obesity has a negative impact on symptoms and functional capacity. However, WB-EMS did not acutely enhance oxygen uptake or HRV during exercise in a population with obesity. |
| first_indexed | 2024-04-14T05:38:20Z |
| format | Article |
| id | doaj.art-3ffa6049dffc4594a5ea4cba94346efa |
| institution | Directory Open Access Journal |
| issn | 1980-6574 |
| language | English |
| last_indexed | 2024-04-14T05:38:20Z |
| publishDate | 2021-11-01 |
| publisher | Universidade Estadual Paulista (UNESP) |
| record_format | Article |
| series | Motriz: Revista de Educacao Fisica |
| spelling | doaj.art-3ffa6049dffc4594a5ea4cba94346efa2022-12-22T02:09:32ZengUniversidade Estadual Paulista (UNESP)Motriz: Revista de Educacao Fisica1980-65742021-11-012810.1590/s1980-65742022008921Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic menGabriela Cassemilianohttps://orcid.org/0000-0001-9856-7037Paula Angélica Riccihttps://orcid.org/0000-0001-6629-7933Soraia Pilon Jürgensenhttps://orcid.org/0000-0002-9526-2315Bianca Cristina Domingoshttps://orcid.org/0000-0002-0943-2411Audrey Borghi-Silvahttps://orcid.org/0000-0002-3891-6941Abstract Aim: To contrast the acute effects of whole-body electromyostimulation (WB-EMS) with sham associated with dynamic exercises on cardiovascular, ventilatory, metabolic, and autonomic responses in men with obesity and controls. Methods: A randomized cross-over and double-blind trial with nine eutrophic (23.6 years; 23 ± 1.4 kg/m2) and ten men with obesity (26 ± 4 years; 38 ± 7 kg/m2), who were randomized to receive WB-EMS-Sham or Sham-WB-EMS with 30 min of rest between protocols. WB-EMS protocol (Miha Bodytec®) was applied at the motor level, frequency = 85 Hz, pulse duration = 350 μs, cycle on = 6′; cycle off = 4′. Sham group performed the same exercises with the electric current turned off. Throughout both protocols, subjects executed two dynamic exercises of 5 minutes each (step-up and step down associated with shoulder flexion, and lunge exercise associated with elbow flexion) in the same order. R-R intervals and breath-by-breath respiratory gases analysis were collected during the protocols. Heart rate variability (HRV) indexes were obtained using linear and nonlinear analysis. The level of statistical significance was set at p < 0.05. Results: Regarding both exercises, participants with obesity presented reduced oxygen uptake, higher ventilation, respiratory rate, blood pressure, and Borg scores (p < 0.05) when contrasted with controls, as expected. However, no significant differences were found for HRV indexes between groups (p > 0.05). In addition, WB-EMS did not increase oxygen uptake or altered autonomic modulation when contrasted with sham in both groups (p < 0.05). Conclusion: Obesity has a negative impact on symptoms and functional capacity. However, WB-EMS did not acutely enhance oxygen uptake or HRV during exercise in a population with obesity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000100600&tlng=enobesitywhole-body electromyostimulationheart rate variabilityoxygen uptakefunctional capacity |
| spellingShingle | Gabriela Cassemiliano Paula Angélica Ricci Soraia Pilon Jürgensen Bianca Cristina Domingos Audrey Borghi-Silva Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men Motriz: Revista de Educacao Fisica obesity whole-body electromyostimulation heart rate variability oxygen uptake functional capacity |
| title | Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| title_full | Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| title_fullStr | Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| title_full_unstemmed | Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| title_short | Acute whole-body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| title_sort | acute whole body electromyostimulation associated with dynamic exercises did not alter cardiac autonomic modulation and oxygen uptake in obese and eutrophic men |
| topic | obesity whole-body electromyostimulation heart rate variability oxygen uptake functional capacity |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742022000100600&tlng=en |
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