Article

OBJECTIVE: To evaluate and discuss the accuracy of submaximal exercise-based
equations to predict maximum oxygen uptake (V o2max), validated using direct gas
analysis, in older apparently healthy adults.
DATA SOURCES: Studies were
identified by searching 5 electronic databases and manually scanning reference
lists of included articles from the respective inception of each database through April 2015. STUDY SELECTION: Studies were included if they used at least 1
submaximal exercise-based variable in the prediction, the actual V o2max was
directly measured using a gas analysis device, and if participants were
apparently healthy older adults (mean age >/=65y). Eligible studies were required
to report at least 1 validity statistic (eg, Pearson product-moment correlation
[r]) and either a predicted and measured V o2max value or a directional
significant difference between the measured and predicted V o2max values. No
limits were placed on year of publication, but only full-text, published articles
in the English language were included. DATA EXTRACTION: Nine articles and 13
equations were retained from the systematic search strategy. If the same
prediction equation was used across multiple trials, data from the most accurate
trial were reported. DATA SYNTHESIS: Submaximal equations predicted directly
measured V o2max with a moderate to strong correlation strength (r range,
0.4-0.9). Predicted V o2max significantly differed from directly measured in 2 of
the 13 equations. The preferred mode of ergometry was walking or running (7
equations); a stepping protocol was the most accurate (R(2)=0.9, not significant
between predicted and measured V o2max). CONCLUSIONS: Factors to consider when
choosing a submaximal exercise-based equation are the accuracy of the equation,
the population tested, the mode of ergometry, the equipment availability, and the
time needed to conduct familiarization sessions.
CI - Copyright (c) 2016 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS