Introduction:

Various research has used field tests to establish cardiorespiratory fitness from VO.max obtained; however, under high altitude conditions there may be variations that influence the behavior of this variable untrained and untrained healthy subjects.

Objective:

The objective of this study was to compare the VO.max obtained by means of two field tests: Cooper Run Test and Shuttle Run Test 20 meters (CRT and SRT-20m) and the values obtained by ergospirometry in trained university students above 2600 masl.

Method:

Descriptive cross-sectional study;30 trained subjects (8 women 22 men) participated, with ± an average age of 19.0 to 2.2 years for women and 20.1 ± to 2.1 years for men. A one-way variance analysis was applied; a post hoc analysis was subsequently performed with the Games-Howell procedure which is most powerful in small samples (p<0.01).

Results:

No significant differences were founding the VO.max mean for SRT-20m and the direct method, however, with respect to the CRT, differences were presented (p <0.01), reflecting the higher accuracy of the SRT-20m test to estimate the VO.max in the sample evaluated.

Conclusions:

Our results suggested that SRT-20m predicted VO.max closely to data reported in ergospirometry in both men and women living at high altitude. Additional research with larger sample sizes is warranted. MÉD.UIS.2021;34(1): 19-26.

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