Blood Lactate Response to the CF (Canadian Forces) EXPRES Test
Abstract
This study evaluated the blood lactate (LA) response to stepping exercise, specifically the Canadian Aerobic Fitness Test (CAFT). It also compared the ability of lactate and heart rate at a given stage of the step test to predict maximal aerobic power (VO2(max)). Sixty-nine male and female CF personnel between the ages of 30 and 50 years participated in this study. The LA concentration after each stage of the CAFT was measured in all subjects by sampling blood from the finger-tip. Eighteen of these male subjects also had their VO2(max) measured directly during a maximal treadmill run. The analysis of the data showed that the step test significantly raised LA in both the male and female subject (p<.05). When the LA and heart rate measures at stage four of the step tests were compared for their ability to predict treadmill VO2(max), LA was the better predictor. The correlation between lactate and VO2max was -0.33, while between heart rate and VO2(max) it was -0.02. These preliminary results suggest that lactate measured during the CAFT is at least as good and perhaps a better predictor of VO2(max) than heart rate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1988
- Accession Number
- ADA203697
Entities
People
- D. G. Bell
- I. Jacobs
- M. F. Kavanagh
Organizations
- DRDC Toronto