Nonexercise Equations for Cardiorespiratory Fitness in Older Adults using Body Roundness Index and Waist Circumference.

ABSTRACT:

Introduction

Cardiorespiratory fitness (CRF), quantified by oxygen consumption at maximal exercise (VO_2max), is an important indicator of general health status with aging and related chronic diseases. CRF prediction equations may be an acceptable form of estimating associated health risks when VO_2max cannot be measured. The purpose of this study was to describe new CRF prediction equations that utilize waist circumference (WC) and body roundness index (BRI) to improve CRF estimation in inactive older adults.

Methods

Secondary cross-sectional analyses of baseline data from two randomized controlled trials (Exercise Effects on Brain Health and Learning from Minutes to Months [EXTEND], n = 113; Effects of a Bicycling Intervention on Cognitive Skills

SUBMITTER: Chappell H 

PROVIDER: S-EPMC12721680 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature