PMID: 9183808May 1, 1997Paper

Reliability of using the D-max method to define physiological responses to incremental exercise testing

Physiological Measurement
S Zhou, S B Weston

Abstract

The purpose of this study was to examine the reliability of using a mathematical method, D-max, to define blood lactate kinetics in response to an incremental exercise test, and to compare the physiological responses corresponding to the workload at D-max with those at the traditional 4 mmol l-1 lactate threshold and ventilatory thresholds. Ten male endurance trained athletes, with an average (+/- SD) age of 25.6 +/- 8.2 years and maximal oxygen consumption of 64.0 +/- 1.7 ml kg-1 min-1, performed an incremental cycling test on two occasions separated by four weeks. The expired gas was analysed on-line and plasma lactate concentration was analysed for each workload and at exhaustion. The lactate response to exercise was represented by a third-order polynomial regression curve. The D-max was defined as the point on the regression curve that yields the maximal distance to the straight line formed by the two end points of the curve. The results demonstrated a high test-retest reliability (intraclass correlation coefficients 0.77-0.93, p < 0.01) in oxygen consumption, heart rate and exercise intensity at both D-max point and exhaustion. No significant differences were found in the mean values of the variables between the two tests....Continue Reading

References

Sep 1, 1979·European Journal of Applied Physiology and Occupational Physiology·W KindermannJ Keul
Oct 1, 1976·Journal of Applied Physiology·J A DavisP Kurtz
Oct 1, 1992·International Journal of Sports Medicine·B ChengM Hesselink
May 1, 1988·Sports Medicine·M L Walsh, E W Banister
May 1, 1987·Journal of Applied Physiology·R L HughsonG D Swanson
Feb 1, 1985·International Journal of Sports Medicine·T M McLellan
Jun 1, 1985·Journal of Applied Physiology·L B GladdenB A Stamford
Jun 1, 1985·International Journal of Sports Medicine·H HeckW Hollmann
Dec 1, 1985·Journal of Applied Physiology·W L BeaverB J Whipp
Aug 1, 1973·Journal of Applied Physiology·K WassermanW L Beaver
Feb 1, 1984·The American Review of Respiratory Disease·K Wasserman
Jan 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·J SimonR B Case
Jan 1, 1982·Medicine and Science in Sports and Exercise·V L KatchP Freedson
Aug 1, 1981·International Journal of Sports Medicine·H StegmannA Schnabel
Apr 1, 1993·International Journal of Sports Medicine·A UrhausenW Kindermann
Jan 1, 1996·European Journal of Applied Physiology and Occupational Physiology·K MeyerH Roskamm

❮ Previous
Next ❯

Citations

Nov 13, 2001·Journal of Science and Medicine in Sport·S B Weston, T J Gabbett
Sep 16, 2016·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Júlio César Camargo AlvesFabiana Andrade Machado
Sep 9, 2004·Medicine and Science in Sports and Exercise·Tanya CrampBarbara J Meyer
Apr 5, 2001·Sports Medicine·W G HopkinsJ A Hawley
Dec 15, 2004·Medicine and Science in Sports and Exercise·Markus AmannCarl Foster
Aug 31, 2018·Journal of Strength and Conditioning Research·Duncan G BradburyPaul S R Goods
Aug 2, 2017·BMJ Open Sport & Exercise Medicine·Ricardo William MuotriFrancisco Lotufo Neto
May 21, 2009·Sports Medicine·Oliver FaudeTim Meyer
Dec 17, 2011·International Journal of Sports Physiology and Performance·Mariana F M OliveiraCamila C Greco
Jan 31, 2014·Journal of Strength and Conditioning Research·Thiago Oliveira BorgesAaron J Coutts
Nov 26, 2019·Journal of Strength and Conditioning Research·Ronald L SnarrPhilip Bishop
Jan 29, 2021·International Journal of Sports Medicine·Ioannis S Nikitakis, Argyris G Toubekis

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme
Keith Baar
Journal of Strength and Conditioning Research
Thiago Fernando LourençoDenise Vaz Macedo
Journal of Sports Sciences
Luciene F AzevedoLuciana D N J de Matos
© 2021 Meta ULC. All rights reserved