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Lactate threshold as determined by c...

Stiebler, Douglas J.

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Lactate threshold as determined by continuous ramp versus constant resistance exercise tests.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Lactate threshold as determined by continuous ramp versus constant resistance exercise tests./
Author:	Stiebler, Douglas J.
Description:	83 p.
Notes:	Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0221.
Contained By:	Dissertation Abstracts International67-01B.
Subject:	Health Sciences, Recreation. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3201653
ISBN:	054249437X

Lactate threshold as determined by continuous ramp versus constant resistance exercise tests.
Stiebler, Douglas J.

Lactate threshold as determined by continuous ramp versus constant resistance exercise tests. - 83 p.

Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0221.

Thesis (Ph.D.)--The University of New Mexico, 2005.

The anaerobic threshold (AT) has been considered as the level of exercise that exceeds oxygen delivery and exhausts oxygen stores (Wasserman, 1973). To avoid associating the threshold with a sudden deficit of oxygen in exercising muscle, this study uses the terminology of metabolic threshold (MT), which is defined as a state of equilibrium, above which ATP demands are increasingly met by anaerobic processes.

ISBN: 054249437XSubjects--Topical Terms:

1018003
Health Sciences, Recreation.

Lactate threshold as determined by continuous ramp versus constant resistance exercise tests.
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100 1 $a Stiebler, Douglas J. $3 1906442
245 1 0 $a Lactate threshold as determined by continuous ramp versus constant resistance exercise tests.
300 $a 83 p.
500 $a Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0221.
500 $a Adviser: Suzanne M. Schneider.
502 $a Thesis (Ph.D.)--The University of New Mexico, 2005.
520 $a The anaerobic threshold (AT) has been considered as the level of exercise that exceeds oxygen delivery and exhausts oxygen stores (Wasserman, 1973). To avoid associating the threshold with a sudden deficit of oxygen in exercising muscle, this study uses the terminology of metabolic threshold (MT), which is defined as a state of equilibrium, above which ATP demands are increasingly met by anaerobic processes.
520 $a The MT has been determined during incremental exercise tests by measuring changes in blood lactate concentrations and ventilation during incremental exercise. When blood lactate is measured, the test determines lactate threshold (LT) and when ventilation is used, the ventilatory threshold (VT) is measured. These tests are invasive and/ or expensive. These thresholds, which are meant to be indicative of the level of maximal steady state exercise, are measured during incremental exercise tests. Hagberg & Coyle (1983) questioned the validity of predicting steady state responses from an incremental exercise protocol during which cardiovascular, metabolic and respiratory responses are continually changing and a continuous increase in the O2 deficit is occurring. With a progressive incremental exercise test, steady state transport into and out of blood will not be established (Svedahl & MacIntosh, 2003). The maximal lactate steady state (MLSS) test measures the MT during steady state conditions; however, it too is an invasive and expensive test that is time intensive. A noninvasive and inexpensive method to estimate the threshold would have considerable application to sports and athletic training (Robergs & Roberts, 1997). The purposes of this study were (1) to develop a non-invasive, inexpensive protocol that could be used to determine MT, (2) to compare LT and VT, and (3) to test the observation that athletes can exercise for at least 10-min above the MT.
520 $a There was no significant difference between the measures of MT (LT, VT, or LTmax). All subjects were able to complete 10-min of CR exercise at a resistance greater than the resistance at MT. For all subjects, LTmax was 10 watts below the resistance at FAIL. It was concluded that (1) LTmax measures MT, (2) athletes are able to exercise for 10-min at an intensity greater than the MT, and (3) the LTmax protocol is a non-invasive, inexpensive method to measure MT. (Abstract shortened by UMI.)
590 $a School code: 0142.
650 4 $a Health Sciences, Recreation. $3 1018003
650 4 $a Biology, Animal Physiology. $3 1017835
690 $a 0575
690 $a 0433
710 2 0 $a The University of New Mexico. $3 1018024
773 0 $t Dissertation Abstracts International $g 67-01B.
790 1 0 $a Schneider, Suzanne M., $e advisor
790 $a 0142
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3201653