Autonomic response of older women to the submaximal effort in the six-minute walk test: a cross-sectional study
DOI:
https://doi.org/10.1590/1809-2950/20026529042022ENKeywords:
Walk Test, Aged, Aging, Autonomic Nervous System, Cardiovascular SystemAbstract
This cross-sectional study aimed to evaluate
the autonomic response of older women in the six-minute
walk test. In total, 32 women aged 60 years or older without
a diagnosed health problem were evaluated during the sixminute walk test. To monitor the autonomic response, the
following variables were considered: heart rate, systolic and
diastolic blood pressure, respiratory rate, and perceived
exertion. These variables were compared during rest,
effort, and recovery. This study also sought a correlation
between autonomic function variables and performance
in the test and perceived exertion. Results showed that the
effort made by older women in the six-minute walk test
induces an autonomic response resulting in increased heart
rate and systolic and diastolic blood pressure; however,
the respiratory rate remained unchanged during the test.
Diastolic blood pressure remained high during recovery.
No correlation was found neither between perceived
exertion and cardiovascular physiological response nor
between distance covered and variation of the autonomic
response or level of physical conditioning. Therefore,
the effort spent in the six-minute walk test promotes
an autonomic response in older women, increasing
cardiovascular stress without increasing ventilation.
In this context, the Borg scale was not representative of
cardiovascular stress during the test.
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Copyright (c) 2022 Ana Letícia dos Santos Lourenço, João Victor Pereira Barbosa, Marcilene Glay Viana Pessoa, Marylia Santos Pereira, Adrielle Silva de Oliveira, Luciana Cost Melo
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