- •Submaximal exercise–based equations predicted directly measured maximal oxygen uptake (o2max) with a moderate to strong correlation strength (r range, 0.4–0.9).
- •Three of the 4 most accurate equations, determined by the highest Pearson product moment and no significant difference between predicted and measured o2max, were derived from stepping-based submaximal exercise tests.
- •Selection should be guided by a number of factors and not just the accuracy of the equation.
To evaluate and discuss the accuracy of submaximal exercise–based equations to predict maximum oxygen uptake (o2max), validated using direct gas analysis, in older apparently healthy adults.
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.
Studies were included if they used at least 1 submaximal exercise–based variable in the prediction, the actual 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 o2max value or a directional significant difference between the measured and predicted o2max values. No limits were placed on year of publication, but only full-text, published articles in the English language were included.
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.
Submaximal equations predicted directly measured o2max with a moderate to strong correlation strength (r range, 0.4–0.9). Predicted 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 (R2=0.9, not significant between predicted and measured o2max).
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.
List of abbreviations:V˙o2 (oxygen uptake), V˙o2max (maximum oxygen uptake), Vo2peak (peak oxygen uptake)
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- The association between cardiorespiratory fitness and cardiovascular risk may be modulated by known cardiovascular risk factors.Am Heart J. 2015; 169: 916-923.e1
- Potential for primary prevention of Alzheimer's disease: an analysis of population-based data.Lancet Neurol. 2014; 13: 788-794
- Cardiorespiratory fitness as a quantitative predictor of all-cause mortality and cardiovascular events in healthy men and women: a meta-analysis.JAMA. 2009; 301: 2024-2035
- Longitudinal study of determinants of dependence in an elderly population.J Am Geriatr Soc. 2004; 52: 1632-1638
- ACSM's guidelines for exercise testing and prescription.8th ed. Lippincott Williams & Wilkins, Philadelphia2011
- Assessment of functional capacity in clinical and research settings: a scientific statement from the American Heart Association Committee on Exercise, Rehabilitation, and Prevention of the Council on Clinical Cardiology and the Council on Cardiovascular Nursing.Circulation. 2007; 116: 329-343
- The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration.BMJ. 2009; 339: b2700
- A systematic review of methods to predict maximal oxygen uptake from submaximal, open circuit spirometry in healthy adults.J Sci Med Sport. 2015; 18: 183-188
- A systematic review and meta-analysis of submaximal exercise-based equations to predict maximal oxygen uptake in young people.Pediatr Exerc Sci. 2014; 26: 342-357
- Quality assessment tool for quantitative studies.Effective Public Health Practice Project, McMaster University, Toronto2003 (Available at: http://www.ephpp.ca/index.html. Accessed August 10, 2013)
- Health benefits of cycling: a systematic review.Scand J Med Sci Sports. 2011; 21: 496-509
- Chapter 8: assessing risk of bias in included studies in Cochrane handbook for systematic reviews of interventions. Version 220.127.116.111 (Available at: www.cochrane-handbook.org. Accessed August 12, 2013)
- A self-paced step test to predict aerobic fitness in older adults in the primary care clinic.J Am Geriatr Soc. 2001; 49: 632-638
- Validation of the Rockport Fitness Walking Test in females 65 years and older.Res Q Exerc Sport. 1992; 63: 322-327
- Maximal aerobic power versus performance in two aerobic endurance tests among young and old adults.Gerontology. 2011; 57: 502-512
- Accuracy of VO2max prediction equations in older adults.Med Sci Sports Exerc. 2003; 35: 145-149
- Validation of a 1-mile walk test in elderly women.J Aging Phys Act. 1993; 1: 13-21
- Validity of a VO2max prediction equation of the 2-km walk test in female seniors.Int J Sports Med. 2005; 26: 453-456
- A perceptually-regulated exercise test predicts peak oxygen uptake in older active adults.J Aging Phys Act. 2015; 23: 205-211
- Cross-validation of the recumbent stepper submaximal exercise test to predict peak oxygen uptake in older adults.Phys Ther. 2014; 94: 722-729
- “Tailored” submaximal step test for VO2max prediction in healthy older adults.J Aging Phys Act. 2014; 22: 261-268
Effective Public Health Practice Project quality assessment tool for quantitative studies. Available at: http://www.ephpp.ca/tools.html. Accessed August 10, 2013.
- Recumbent stepper submaximal exercise test to predict peak oxygen uptake.Med Sci Sports Exerc. 2012; 44: 1539-1544
- Longitudinal modeling of the relationship between age and maximal heart rate.Med Sci Sports Exerc. 2007; 39: 822-829
- A nomogram for calculation of aerobic capacity (physical fitness) from pulse rate during sub-maximal work.J Appl Physiol. 1954; 7: 218-221
- Age-predicted maximal heart rate revisited.J Am Coll Cardiol. 2001; 37: 153-156
- Maximal aerobic capacity testing of older adults: a critical review.J Gerontol A Biol Sci Med Sci. 2005; 60: 57-66
- Oxygen uptake during maximal treadmill and bicycle exercise.J Appl Physiol. 1969; 26: 31-37
- Cardiac output during submaximal and maximal treadmill and bicycle exercise.J Appl Physiol. 1970; 29: 82-86
- A comparison of maximum oxygen uptake determination by bicycle ergometry at various pedaling frequencies and by treadmill running at various speeds.Eur J Appl Physiol Occup Physiol. 1976; 35: 191-200
- Accelerated longitudinal decline of aerobic capacity in healthy older adults.Circulation. 2005; 112: 674-682
- Epidemiology of osteoarthritis and associated comorbidities.PMR. 2012; 4: S10-S19
Published online: October 22, 2015
A.E.S. was funded by Alzheimer's Australia while conducting this study.
© 2016 by the American Congress of Rehabilitation Medicine