Hormonal responses from concentric and eccentric muscle contractions

Medicine and Science in Sports and Exercise
Robert J DurandRobert R Kraemer

Abstract

Intense resistance exercise can acutely increase testosterone (T), free testosterone (FT), and growth hormone (GH) concentrations, but there are few investigations concerning acute endocrine responses to concentric (CON) and eccentric (ECC) contractile actions. The purpose of the study was to compare acute anabolic hormonal responses to bouts of dynamic CON and ECC contractions from multiple exercises at the same absolute load. Ten young men (age: 24.7 +/- 1.2 yr, weight: 85.45 +/- 24.2 kg, and height: 178 +/- 0.2 cm) completed two trials in counterbalanced fashion consisting of only CON or ECC contractions at the same absolute workload. Subjects performed four sets of 12 repetitions of bench press, leg extension, military press, and leg curl at 80% of a 10-repetition maximum with 90-s rest periods. Blood samples were collected pre-, post-, and 15-min postexercise. There were significant increases in GH, T, and FT and lactate for both trials, but only GH and lactate were greater for the CON trial. CON exercise increases GH concentrations to a much greater extent than ECC exercise at the same absolute load, and it is likely that greater GH responses were related to intensity rather than mode of contraction. Also, CON and ECC dyn...Continue Reading

References

Nov 1, 1978·The British Journal of Nutrition·A S Jackson, M L Pollock
Dec 1, 1992·Medicine and Science in Sports and Exercise·R R KraemerV D Castracane
Feb 1, 1992·The American Journal of Physiology·A P Koretsky
Feb 1, 1992·International Journal of Sports Medicine·W J KraemerN T Triplett
May 1, 1992·Medicine and Science in Sports and Exercise·P M ClarksonB Braun
Apr 1, 1991·International Journal of Sports Medicine·W J KraemerA C Fry
Oct 1, 1990·Journal of Applied Physiology·W J KraemerS J Fleck
Jan 1, 1987·European Journal of Applied Physiology and Occupational Physiology·W P VanHelderM W Radomski
Dec 1, 1993·Medicine and Science in Sports and Exercise·R SchwabJ P Weir
Feb 1, 1994·Journal of Applied Physiology·S E GordonH G Knuttgen
Feb 1, 1993·Journal of Applied Physiology·K Häkkinen, A Pakarinen
Mar 1, 1996·Journal of Applied Physiology·T HortobágyiR G Israel
Jun 1, 1997·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·L A GotshalkW J Kraemer
May 9, 1998·Journal of Applied Physiology·K L GosselinkV R Edgerton
Apr 16, 1998·European Journal of Applied Physiology and Occupational Physiology·W J KraemerW J Evans
Apr 30, 1998·European Journal of Applied Physiology and Occupational Physiology·K HäkkinenW J Kraemer
Jan 23, 1999·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·G E McCallW J Kraemer
Feb 4, 1999·Journal of Applied Physiology·D I CarrascoC A Ray
Dec 22, 1999·International Journal of Sports Medicine·F MayerH H Dickhuth
Jan 21, 2000·Journal of Applied Physiology·K L GosselinkV R Edgerton
May 16, 2000·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·T J OverendA A Vandervoort
Apr 27, 2001·Medicine and Science in Sports and Exercise·T HorstmannH H Dickhuth
Jul 27, 2001·Growth Hormone & IGF Research : Official Journal of the Growth Hormone Research Society and the International IGF Research Society·W J KraemerN A Ratamess
Jan 18, 2002·Journal of Applied Physiology·K A StokesH K A Lakomy

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Citations

Apr 10, 2014·Sports Medicine·Brendan R ScottBen J Dascombe
Feb 17, 2005·European Journal of Applied Physiology·Kazushige GotoKaoru Takamatsu
Dec 22, 2005·European Journal of Applied Physiology·Robert R KraemerV Daniel Castracane
Mar 16, 2007·European Journal of Applied Physiology·Leslie A ConsittLaurie Wideman
Oct 22, 2010·European Journal of Applied Physiology·Vanessa D SherkDebra A Bemben
Feb 18, 2011·European Journal of Applied Physiology·Bent R RønnestadTruls Raastad
Jul 14, 2007·The Journal of Pain : Official Journal of the American Pain Society·Takeshi YokoyamaKathleen A Sluka
Dec 4, 2014·Metabolism: Clinical and Experimental·Robert R Kraemer, V Daniel Castracane
Sep 18, 2016·Sports Medicine·Jamie DouglasMike McGuigan
Oct 4, 2016·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·James Peter FisherJames Steele
Dec 17, 2015·Journal of Strength and Conditioning Research·Daniel B HollanderRobert R Kraemer
Dec 1, 2017·Medicine and Science in Sports and Exercise·Benjamin D BoudreauxRobert R Kraemer
Jun 5, 2007·Medicine and Science in Sports and Exercise·Joshua F YarrowLesley J White
Jan 12, 2008·The Journal of Physiological Sciences : JPS·Kazushige GotoKaoru Takamatsu
Sep 9, 2004·Medicine and Science in Sports and Exercise·Darryn S Willoughby, Lemuel Taylor
Apr 16, 2005·Sports Medicine·William J Kraemer, Nicholas A Ratamess
Nov 8, 2005·Sports Medicine·Blair CrewtherJustin Keogh
Dec 19, 2009·Medicine and Science in Sports and Exercise·Michihiro KonTakashi Kawahara
Mar 13, 2010·Journal of Strength and Conditioning Research·Kazushige GotoNaokata Ishii
Aug 21, 2008·Journal of Strength and Conditioning Research·Eduardo Lusa CadoreLuiz Fernando Martins Kruel
Jun 12, 2008·Journal of Strength and Conditioning Research·Joshua F YarrowLesley J White
Oct 27, 2009·Journal of Strength and Conditioning Research·Marco C UchidaMarcelo S Aoki
Feb 9, 2012·Journal of Strength and Conditioning Research·Michihiro KonYasuhiro Suzuki
Feb 11, 2010·Journal of Strength and Conditioning Research·John F CarusoEric E Wickel
Feb 9, 2012·Journal of Strength and Conditioning Research·John F CarusoWilliam T Potter
Sep 11, 2017·The Journal of Physiological Sciences : JPS·Michael BehringerJoachim Mester
Jan 30, 2010·Nature·Katharine Sanderson
Jun 27, 2019·American Journal of Physiology. Endocrinology and Metabolism·Hui-Ying LukJakob L Vingren
Jun 20, 2020·Hormones : International Journal of Endocrinology and Metabolism·Konstantina DiplaAnthony C Hackney

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