Evaluation of three methodologies to estimate the VO2max in people of different ages |
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| Affiliation: | 1. Department of Industrial Design, Universidad Autónoma de Ciudad Juárez, Av. del Charro Num. 450 norte, Ciudad Juárez Chihuahua, C.P. 32310, Mexico;2. Department of Industrial and Manufacturing Engineering, Universidad Autónoma de Ciudad Juárez, Av. del Charro Num. 450 norte, Ciudad Juárez Chihuahua, C.P. 32310, Mexico;3. Department of Industrial Engineering, Instituto Tecnológico de Ciudad Juárez, Av. Tecnológico 1340, Cd. Juárez Ch., C.P. 32500, Mexico;1. Sport & Exercise Subject Group, School of Social Sciences, Business and Law, Teesside University, UK;2. A S Strength and Conditioning Limited, UK;3. Nottingham Rugby, UK;1. Department of Human Biology, University of Cape Town and Sports Science Institute of South Africa, South Africa;2. Human Performance Laboratory, Technological and Higher Education Institute of Hong Kong, Hong Kong;1. Medical Officer (Sports Medicine), Army Sports Institute, Pune 411036, India;2. Classified Specialist (Physiology), Command Hospital (Southern Command), Pune 411040, India;3. Senior Adviser (Physiology), Military Hospital Jhansi, UP, India;4. Col (Adm), Armed Forces Medical College, Pune 411040, India;5. Resident, Department of Sports Medicine, Armed Forces Medical College, Pune 411040, India;1. Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California;2. Stanford Cardiovascular Institute, Stanford, California;3. Division of Epidemiology and Research, Leuven University, Belgium;4. John Moores University, School of Sport and Exercise Sciences, Liverpool, United Kingdom |
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| Abstract: | Aging and gender are factors that affect the variation of physical work capacity. The present paper highlights the importance of the metabolism used by ergonomics to establish the appropriate limits of loads at work. This study compares the aerobic capacity of people from 20 to 71 years old split in 5 different groups. The laboratory experiment tested 33 volunteers (19 women and 14 men). A submaximal step test was used to measure the VO2 using a portable breath by breath metabolic system and a telemetric heart rate monitor. Three methods to estimate the VO2max were compared: 1) a direct measurement of VO2, 2) estimation by heart rate, and 3) a step test method using predetermined charts. Significant difference was encountered among the estimation methods as well as among the age ranges (F2,92 = 6.43, p < 0.05 y F4,92 = 7.18, p < 0.05 respectively). The method of direct measurement and the method of predetermined charts were different for the estimation of the VO2max with a confidence level of 95%. The method of predetermined charts is better adapted for males and people younger than 30 years. The estimation through non invasive heart rate apparatus was a good appraiser of the maximal oxygen consumption considering both genders and all the age groups. |
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