PMID: 8964751Mar 1, 1996Paper

Contribution of phosphocreatine and aerobic metabolism to energy supply during repeated sprint exercise

Journal of Applied Physiology
G C BogdanisH K Lakomy

Abstract

This study examined the contribution of phosphocreatine (PCr) and aerobic metabolism during repeated bouts of sprint exercise. Eight male subjects performed two cycle ergometer sprints separated by 4 min of recovery during two separate main trials. Sprint 1 lasted 30 s during both main trials, whereas sprint 2 lasted either 10 or 30 s. Muscle biopsies were obtained at rest, immediately after the first 30-s sprint, after 3.8 min of recovery, and after the second 10- and 30-s sprints. At the end of sprint 1, PCr was 16.9 +/- 1.4% of the resting value, and muscle pH dropped to 6.69 +/- 0.02. After 3.8 min of recovery, muscle pH remained unchanged (6.80 +/- 0.03), but PCr was resynthesized to 78.7 +/- 3.3% of the resting value. PCr during sprint 2 was almost completely utilized in the first 10 s and remained unchanged thereafter. High correlations were found between the percentage of PCr resynthesis and the percentage recovery of power output and pedaling speed during the initial 10 s of sprint 2 (r = 0.84, P < 0.05 and r = 0.91, P < 0.01). The anaerobic ATP turnover, as calculated from changes in ATP, PCr, and lactate, was 235 +/- 9 mmol/kg dry muscle during the first sprint but was decreased to 139 +/- 7 mmol/kg dry muscle during...Continue Reading

Citations

Jun 17, 2004·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·Cecilia DoradoJosé A L Calbet
Dec 15, 2004·Medicine and Science in Sports and Exercise·Les AnsleyTimothy D Noakes
Jan 18, 2005·Sports Medicine·Alberto Mendez-Villanueva, David Bishop
Oct 1, 2005·Journal of Sports Sciences·Mike Price, Karl Halabi
Jan 6, 2006·Chronobiology International·Sébastien RacinaisOlivier Hue
Apr 14, 2006·European Journal of Applied Physiology·David Bishop, Johann Edge
Nov 25, 2006·Sports Medicine·Sébastien RatelCraig A Williams
Dec 28, 2006·Sports Medicine·Marcus C C W ElliottLoren Chiu
Mar 26, 2009·Sports Medicine·François Billaut, David Bishop
Jan 13, 2010·European Journal of Applied Physiology·Justin A KraftJames D Leeper
Nov 26, 2009·Journal of Strength and Conditioning Research·Kaitlin M SweeneyScott T Doberstein
May 18, 2010·European Journal of Applied Physiology·Billy SperlichHans-Christer Holmberg
Jul 14, 2010·International Journal of Sports Physiology and Performance·Francois Billaut, Kurt Smith
Sep 25, 2010·Scandinavian Journal of Medicine & Science in Sports·F M Iaia, J Bangsbo
Sep 14, 2011·Journal of Strength and Conditioning Research·Nicolas ThébaultPhilippe Passelergue
Aug 1, 2012·Sports Medicine·François BillautRobert J Aughey
Jul 7, 2012·Clinical and Experimental Pharmacology & Physiology·David J Bishop
Oct 23, 2012·Journal of Strength and Conditioning Research·Thomas LapolePierre-Marie Leprêtre
Jan 11, 2013·Journal of Strength and Conditioning Research·Eric C FreeseKirk J Cureton
Nov 24, 2012·PM & R : the Journal of Injury, Function, and Rehabilitation·Anita M Rivera-Brown, Walter R Frontera
Feb 27, 2013·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Dale LovellChris McLellan
Nov 8, 2013·TheScientificWorldJournal·Rhys M JonesGoran Vučković
Jan 30, 2015·Journal of Strength and Conditioning Research·Irineu LoturcoFabio Y Nakamura
Jun 4, 2015·Research in Sports Medicine·J PaduloK Chamari
Jul 25, 2015·European Journal of Applied Physiology·Sebastian Garcia-VicencioSébastien Ratel
Feb 11, 2016·Journal of Strength and Conditioning Research·John R JakemanJohn A Babraj
Aug 15, 2015·Research in Sports Medicine·J PaduloA Dello Iacono
Feb 6, 2016·Journal of Strength and Conditioning Research·Christian M MadsenLars Nybo
Feb 9, 2017·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Hashim IslamTom J Hazell
Feb 10, 2017·PloS One·Alessandro Moura ZagattoClaudio Alexandre Gobatto
Aug 12, 2017·Journal of Strength and Conditioning Research·Sigitas KamandulisTomas Venckunas
Dec 19, 2017·European Journal of Sport Science·Ioannis D KostoulasSavvas P Tokmakidis
Dec 22, 2017·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Greg L McKieTom J Hazell
May 11, 2018·Journal of the International Society of Sports Nutrition·Daniel L CrisafulliJun G San Juan

❮ 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.