Handrail support interference in cardiac autonomic modulation adjustments in young adults during maximal exercise testing

Autor: Anderson Zampier Ulbrich, Amanda Archeleiga Guedes, Giovanna Lima de Oliveira, Vanessa Ferrari da Fonseca, Fernanda Panacioni, Taís Capucho Santos, Adriana Hernandez Marques, Aurenzo Gonçalves Mocelin, Renata Labronici Bertin, Beatriz Augusta Pozzolo
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
ISSN: 2045-2322
DOI: 10.1038/s41598-020-68155-3
Popis: The aim of this study was to investigate whether the use of handrail support during maximal exercise treadmill testing (ETT) would interfere in cardiac autonomic modulation kinetics when compared to not using handrail support. The hypothesis of overestimation in cardiac autonomic dynamics when the ETT is performed using handrail was tested. Thirty-five undergraduates (21.08 ± 2.98 years old) of both sexes, volunteered to undertake two ETT under the Ellestad protocol, in non-consecutive days. The first test (T1) was performed with handrail support and, after 7 days, the second test was performed (T2) without the support. Autonomic function was measured by heart rate variability (HRV) during both tests and resting. Estimated value of peak oxygen uptake (VO2) was 22.4% (p 2 persisted longer in T1 stages than in T2 and was verified in early stages (S2 and S3) of both ETTs. Our findings suggest that parasympathetic influences on HR were slightly prolonged during ETT when subjects hold onto the treadmill.
Databáze: OpenAIRE
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