ESTIMATION OF VO2MAX FROM A ONE-MILE TRACK WALK, GENDER, AGE, AND BODY-WEIGHT

  • 1 June 1987
    • journal article
    • research article
    • Vol. 19  (3) , 253-259
Abstract
The purpose of this investigation was to explore an alternative field test to estimate maximal oxgen consumption (.ovrhdot.VO2max) using a one-mile walk test. .ovrhdot.VO2max was determined in 343 healthy adult (males = 165, females = 178) subjects 30 to 69 yr using a treadmill protocol (mean .+-. SD: .ovrhdot.VO2max = 37.0 .+-. 10.7 ml .cntdot. kg-1 .cntdot. min-1). Each subject performed a minimum of two, one-mile track walks as fast as possible. The two fastest walks (T1, T2) with elapsed times within 30 s were used for subsequent analyses. Heart rates were monitored continuously and recorded every one-quarter mile. Multiple regression analysis (best sub-sets) to estimate .ovrhdot.VO2max (l .cntdot. min-1) yielded the following predictor variables: tract walk-1 time (T1); fourth quarter heart rate for track walk-1 (HR 1-4); age (yr); weight (1b); and sex (1 = male, 0 = female). The best equation (N = 174) was: .ovrhdot.VO2max = 6.9652 + (0.0091*WT) - (0.0257*AGE) + (0.5955*SEX) - (0.2240*T1) - (0.0115*HR 1-4); r = 0.93, SEE = 0.325 l .cntdot. min-1. Comparing observed and estimated .ovrhdot.VO2max values in a cross-validation group (N = 169) resulted in r = 0.92, SEE = 0.355 l .cntdot. min-1. Generalized and sex-specific equations to estimate .ovrhdot.VO2max (ml .cntdot. kg-1 .cntdot. min-1) were also generated. The accuracy of estimation as expressed by SEE was similar among the equations. The results indicate that this one-link walk test protocol provides a valid sub-maximum assessment for .ovrhdot.VO2max estimation.

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