Cardiorespiratory Responses to Downhill Versus Uphill Running in Endurance Athletes

Research Quarterly for Exercise and Sport
Marcel LemireStéphane P Dufour

Abstract

Mountain running races are becoming increasingly popular, although our understanding of the particular physiology associated with downhill running (DR) in trained athletes remains scarce. This study explored the cardiorespiratory responses to high-slope constant velocity uphill running (UR) and DR. Eight endurance athletes performed a maximal incremental test and 2 15-min running bouts (UR, +15%, or DR, -15%) at the same running velocity (8.5 ± 0.4 km·h-1). Oxygen uptake ([Formula: see text]O2), heart rate (HR), and ventilation rates ([Formula: see text]E) were continuously recorded, and blood lactate (bLa) was measured before and after each trial. Downhill running induced a more superficial [Formula: see text]E pattern featuring reduced tidal volume (p < .05, ES = 6.05) but similar respiratory frequency (p > .05, ES = 0.68) despite lower [Formula: see text]E (p < .05, ES = 5.46), [Formula: see text]O2 (p < .05, ES = 12.68), HR (p < .05, ES = 6.42), and bLa (p < .05, ES = 1.70). A negative slow component was observed during DR for [Formula: see text]O2 (p < .05, ES = 1.72) and HR (p < .05, ES = 0.80). These results emphasize the cardiorespiratory responses to DR and highlight the need for cautious interpretation of [Formula: se...Continue Reading

References

Feb 1, 1990·Medicine and Science in Sports and Exercise·J M Pivarnik, N W Sherman
Feb 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·D H Wasserman, B J Whipp
Sep 1, 1995·Medicine and Science in Sports and Exercise·E T HowleyH G Welch
Jan 1, 1996·Archives of Physiology and Biochemistry·V L BillatJ P Koralsztein
Dec 1, 1996·Journal of Applied Physiology·B J WhippF C Cobb
Aug 24, 2000·Journal of Applied Physiology·H CarterJ H Doust
Aug 17, 2002·Journal of Applied Physiology·Alberto E MinettiGuido Ferretti
Sep 19, 2002·Applied Ergonomics·Arthur T JohnsonNischom Silverman
Nov 19, 2002·European Journal of Applied Physiology·Jamie S M PringleAndrew M Jones
Feb 6, 2003·Medicine and Science in Sports and Exercise·Veronique BillatJean Pierre Koralsztein
Oct 30, 2004·Medicine and Science in Sports and Exercise·Stephane P DufourRuddy Richard
Dec 13, 2006·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Stéphane P DufourRuddy Richard
Mar 18, 2008·Respiratory Physiology & Neurobiology·Andrew M JonesKevin G Thompson
Aug 6, 2010·The International Journal of the History of Sport·Martin D HoffmanGary Wang
Aug 2, 2011·Journal of Physiological Anthropology·Daijiro AbeShigemitsu Niihata
Apr 1, 2012·Comprehensive Physiology·David C Poole, Andrew M Jones
Aug 2, 2014·Respiratory Physiology & Neurobiology·J B LechauveR Richard
Apr 28, 2016·The Journal of Physiological Sciences : JPS·Setsuro TsukadaMasahiko Izumizaki

❮ Previous
Next ❯

Citations

Dec 10, 2019·Medicine and Science in Sports and Exercise·Marcel LemireStéphane P Dufour
Oct 11, 2020·Sports Medicine·Bastien BontempsJulien Louis
Nov 17, 2020·Journal of Sports Sciences·Marcel LemireStéphane P Dufour
Feb 3, 2021·The Journal of Sports Medicine and Physical Fitness·Jefferson F Coelho Rodrigues JrMario N Sevílio Jr
Jul 11, 2020·Journal of Science and Medicine in Sport·Marcel LemireStéphane P Dufour
Aug 29, 2021·Sensors·Eric HarbourHermann Schwameder

❮ Previous
Next ❯

Software Mentioned

Statistica

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.

© 2022 Meta ULC. All rights reserved