Abstract
It is well established that resistance exercise can damage muscle tissue, but the combined effects of hypohydration and resistance exercise on muscle damage are unclear. Two common circulating markers of muscle damage, myoglobin (Mb) and creatine kinase (CK) may be attenuated by fluid ingestion post-exercise. The purpose of this study was to examine the combined effect of resistance exercise and hydration state on muscle damage. Seven healthy resistance-trained males (age = 23 +/- 4 years; body mass = 87.8 +/- 6.8 kg; body fat = 11.5 +/- 5.2%) completed 3 identical resistance exercise bouts (6 sets of up to 10 repetitions of the back squat) in different hydration states: euhydrated (HY0), hypohydrated approximately 2.5% body mass (HY2.5), and hypohydrated approximately 5.0% body mass (HY5). Subjects achieved desired hydration states via controlled water deprivation, exercise-heat stress, and fluid intake. Both Mb and CK were measured during euhydrated rest (PRE). Mb was also measured immediately post-exercise, 1 hour (+1H) and 2 hours (+2H) post-exercise; CK was measured at 24 and 48 hours post-exercise. Body mass decreased 0.2 +/- 0.4%, 2.4 +/- 0.4%, and 4.8 +/- 0.4% during HY0, HY2.5, and HY5, respectively. Mb concentrations ...Continue Reading
References
Oct 1, 1992·Journal of Applied Physiology·S J Montain, E F Coyle
May 1, 1992·Medicine and Science in Sports and Exercise·P M ClarksonB Braun
Jul 1, 1990·Journal of Neurology·M F Driessen-KletterJ van Gijn
Apr 1, 1989·International Journal of Sports Medicine·T Hortobágyi, T Denahan
Jan 1, 1989·European Journal of Applied Physiology and Occupational Physiology·G L PaulT E Kirby
Jul 1, 1988·Journal of Applied Physiology·P M Clarkson, I Tremblay
Jan 1, 1987·Annals of Internal Medicine·D S Young
Aug 1, 1974·Journal of Applied Physiology·D B Dill, D L Costill
Jul 1, 1965·Journal of Applied Physiology·J E Greenleaf, F Sargent
Sep 1, 1984·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·R W HubbardD B Engell
Aug 1, 1982·International Journal of Sports Medicine·P M ClarksonW A Record
Jan 1, 1994·European Journal of Applied Physiology and Occupational Physiology·J R HoffmanA Ward
Sep 1, 1994·International Journal of Sport Nutrition·L E ArmstrongD Riebe
Jan 1, 1996·Journal of Applied Physiology·M HargreavesM Febbraio
Mar 21, 1998·Medicine and Science in Sports and Exercise·J S GreiweR G Knowlton
Oct 16, 1999·The Journal of Physiology·J González-AlonsoB Nielsen
Jul 27, 2000·Medicine and Science in Sports and Exercise·B A DolezalS H Benedict
Nov 16, 2001·Journal of Strength and Conditioning Research·J E SchoffstallD E Swain
Dec 1, 2001·Journal of Strength and Conditioning Research·C M MareshL E Armstrong
Jan 15, 2002·American Journal of Physiology. Endocrinology and Metabolism·Jeff S VolekPaula Gaynor
Nov 1, 2002·American Journal of Physical Medicine & Rehabilitation·Priscilla M Clarkson, Monica J Hubal
Nov 20, 2002·Medicine and Science in Sports and Exercise·Jay R HoffmanWilliam J Kraemer
Mar 3, 2004·Journal of Applied Physiology·C M MareshD J Casa
Dec 3, 2004·Journal of Strength and Conditioning Research·Matthew R Rhea
Apr 9, 2005·Journal of Applied Physiology·Priscilla M ClarksonJoseph M Devaney
Dec 6, 2005·International Journal of Sport Nutrition and Exercise Metabolism·John G SeifertOladele Gazal
May 9, 2006·Medicine and Science in Sports and Exercise·Priscilla M ClarksonPaul D Thompson
Sep 29, 2006·International Journal of Sports Medicine·C M MareshV D Castracane
Oct 5, 2006·Medicine and Science in Sports and Exercise·Lawrence E ArmstrongCarl M Maresh
Citations
Jul 2, 2011·European Journal of Applied Physiology·Chelsea Starbuck, Roger G Eston
May 13, 2011·Amino Acids·Tyler J KirbyJeffrey M McBride
Nov 10, 2013·PloS One·Mohamed Nashrudin Naharudin, Ashril Yusof
Jan 1, 2010·Journal of Strength and Conditioning Research·Kathleen N BeasleyCarl M Maresh
Jul 18, 2017·Journal of Human Kinetics·Anderson Pontes MoralesBeatriz Gonçalves Ribeiro
Mar 13, 2013·Journal of Strength and Conditioning Research·Brett A ComstockWilliam J Kraemer
Apr 2, 2020·Journal of Translational Medicine·Roberto RoklicerPatrik Drid
May 31, 2019·Frontiers in Physiology·Giosuè AnnibaliniPiero Benelli
Nov 11, 2019·International Journal of Environmental Research and Public Health·Antonia ThammMoritz Schumann