Date of Award

Spring 2008

Document Type

Thesis

Degree Name

Master of Science in Education (MSEd)

Department

Human Movement Sciences

Program/Concentration

Physical Education

Committee Director

David P. Swain

Committee Member

Sheri R. Colberg-Ochs

Committee Member

Robert J. Spina

Call Number for Print

Special Collections LD4331.E44 W37 2008

Abstract

The purpose of the current study was to establish and then validate a treadmill protocol to predict VO2max based on VO2Reserve.

Methods

A treadmill protocol was developed to elicit approximately 60-70% of heart rate reserve (HRR) in the fifth and sixth minutes of the final stage. The protocol involved walking on a treadmill at 3.0 mph, with grade increasing by 1 % each minute until 50% HRR was reached. Then, an additional 5 minutes of walking at the final grade was performed. A study population of 60 volunteers (30 male; 30 female), considered low risk by ACSM guidelines, performed the protocol, and then performed an incremental test in which treadmill speed was increased, so that actual VO2max could be measured. To estimate VO2max from the sub-maximal portion of the protocol, maximal workload was estimated by dividing the workload of the 6-min stage by the %HRR attained, and then VO2max was estimated using the ACSM metabolic equation for treadmill walking.

Results

A regression performed on actual VO2max vs. the estimated VO2max showed an r-value of 0.75 and an SEE of 6.94 ml·min-1·kg-1 (p < 0.001). The mean values for actual and estimated VO2max were 42.6 ± 10.4 and 43.3 ± 8.5 ml·min-1·kg-1.

Conclusions

This new method of estimating VO2max utilizing a submaximal treadmill protocol did not over-or underestimate VO2max and was found to be highly valid, attaining similar r-values to previous research. This easily reproducible method of estimating VO2max is valid in apparently healthy 18-44 year old men and women.

Rights

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DOI

10.25777/q97c-t571

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