کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
551280 872821 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of three methodologies to estimate the VO2max in people of different ages
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر تعامل انسان و کامپیوتر
پیش نمایش صفحه اول مقاله
Evaluation of three methodologies to estimate the VO2max in people of different ages
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ergonomics - Volume 42, Issue 1, December 2010, Pages 162–168
نویسندگان
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