Accession Number:

ADA239494

Title:

Blood Lactate Response to the CF Express Step Test

Descriptive Note:

Final rept.,

Corporate Author:

DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)

Personal Author(s):

Report Date:

1991-06-18

Pagination or Media Count:

18.0

Abstract:

The Canadian Forces CF personnel have their fitness measured by the EXPRESS test. This test includes measures of strength, muscular endurance, aerobic power and body composition. Of the performance measures i.e., strength, muscular endurance and aerobic power, the first two are measured directly while the last is predicted or estimated from heart rate HR response to stepping activity. As a result of the prediction or estimate, error is introduced into the measure of aerobic power. The inaccuracies of the prediction could have adverse career action associated with it. The purpose of this study was to see if blood lactate could be used to more accurately predict maximal aerobic power. Two-hundred and thirty five 235 CF male and female personnel performed the step-test procedures used to predicted maximal aerobic power. In addition to having their heart rates determined during the test, blood was sampled from a finger tip and analyzed for lactate LA. A sub-sample of this population n156 also had their aerobic power measured directly during a maximal run performed on a treadmill. The HR and LA values measured during stage 5 of the stepping activity were compared in their ability to predict or estimate the aerobic power measured from the running performance. For the male subjects, LA predicted aerobic power better than HR whereas, for the females, the prediction of aerobic power from LA and HR was similar.

Subject Categories:

  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE