Prediction of cardiorespiratory fitness from self-reported data in elderly

Abstract

-Cardiorespiratory fitness (CRF) is associated with several health outcomes. Some non-exercise equations are available for CRF estimation. However, little is known about the validation of these equations among elderly. The aim of this study was to exam the validity of non-exercise equations with self-reported information in elderly. Participants (n= 93) aged 60 to 91 years measured CRF using maximal cardiopulmonary exercise test. Five non-exercise equations were selected. Data included in the equations (age, sex, weight, height, body mass index, physical activity and smoking) were self-reported. Coefficient of determination (R 2 ) of linear regressions with laboratory-measured VO 2 peak ranged from 0.04 to 0.64. The Bland-Altman plots showed higher agreement between achieved and predicted CRF obtained by Jackson and colleagues, and Wier and colleagues equations. On the other hand, the other equations showed lower agreement and overestimation. Our findings provide evidences that two non-exercise equations, previously developed, could be used on the prediction of CRF among elderly.

Fuerza muscular inspiratoria dinámica y aptitud cardiorrespiratoria en función de edad y sexo

“…En cuanto a la aptitud cardiorrespiratoria, y más concretamente al consumo de oxígeno máximo, variable multifactorial y como tal afectada por los cambios en diferentes sistemas, frecuentemente se considera como un indicador importante de esa capacidad funcional 8 , además de ser un predictor de mortalidad independientemente de la raza y el sexo 9,10 . Además, la aptitud cardiorrespiratoria se relaciona de forma inversa con enfermedades cardiovasculares o situaciones crónicas que pueden afectar al AM sano 9 , y de forma directa con la fuerza y la flexibilidad 8 . Como ocurre con la masa muscular y la fuerza, su pérdida es mayor en los hombres ya que parten de valores más elevados 10 .…”