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| Bianchim,M.S.; Sperandio,E.F.; Martinhão,G.S.; Matheus,A.C.; Lauria,V.T.; da Silva,R.P.; Spadari,R.C.; Gagliardi,A.R.T.; Arantes,R.L.; Romiti,M.; Dourado,V.Z.. |
| The autonomic nervous system maintains homeostasis, which is the state of balance in the body. That balance can be determined simply and noninvasively by evaluating heart rate variability (HRV). However, independently of autonomic control of the heart, HRV can be influenced by other factors, such as respiratory parameters. Little is known about the relationship between HRV and spirometric indices. In this study, our objective was to determine whether HRV correlates with spirometric indices in adults without cardiopulmonary disease, considering the main confounders (e.g., smoking and physical inactivity). In a sample of 119 asymptomatic adults (age 20-80 years), we evaluated forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). We... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Autonomic nervous system; Spirometry; Smoking. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000300702 |
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| Sperandio,E.F.; Arantes,R.L.; Matheus,A.C.; Silva,R.P.; Lauria,V.T.; Romiti,M.; Gagliardi,A.R.T.; Dourado,V.Z.. |
| The 6-minute walk test (6MWT) is a simple field test that is widely used in clinical settings to assess functional exercise capacity. However, studies with healthy subjects are scarce. We hypothesized that the 6MWT might be useful to assess exercise capacity in healthy subjects. The purpose of this study was to evaluate 6MWT intensity in middle-aged and older adults, as well as to develop a simple equation to predict oxygen uptake ( V ˙ O 2) from the 6-min walk distance (6MWD). Eighty-six participants, 40 men and 46 women, 40-74 years of age and with a mean body mass index of 28±6 kg/m2, performed the 6MWT according to American Thoracic Society guidelines. Physiological responses were evaluated during the 6MWT using a K4b2 Cosmed telemetry gas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Exercise; Walking; Gas exchange. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000400349 |
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