Corticospinal and intracortical excitability differ between athletes early after ACLR and matched controls

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
Ryan ZarzyckiLynn Snyder-Mackler

Abstract

Neuromuscular impairments, such as quadriceps weakness and activation deficits, persist after anterior cruciate ligament reconstruction (ACLR). Recent research demonstrating changes in the function of the primary motor cortex after ACLR posits that quadriceps impairments may be influenced by reduced corticospinal excitability. The purpose of this study was to investigate whether the integrity of the neuromotor axis of the vastus medialis is altered in subjects 2 weeks post-ACLR compared to uninjured control subjects. Eighteen athletes 2 weeks post-ACLR and 18 age and sex matched uninjured control subjects participated in this cross-sectional study. We quantified corticospinal (resting motor threshold, RMT; motor evoked potential amplitudes at 120% RMT, MEP120 ) and intracortical (inhibition and facilitation) excitability using single and paired pulse transcranial magnetic stimulation (TMS), respectively. We assessed spinal-reflex excitability (H-reflex amplitude normalized to maximal M-wave, H/M ratio) using peripheral stimulation. Subjects post-ACLR had higher RMTs (p = 0.001), greater MEP120 amplitudes (p = 0.001), and more asymmetric facilitation (p = 0.041) than the uninjured control subjects. No significant group differenc...Continue Reading

References

Jan 1, 1993·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·F HeftiH U Stäubli
Nov 1, 1996·The American Journal of Sports Medicine·R A ArcieroR J Snyder
Oct 6, 2000·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·H J HermensG Rau
Feb 24, 2001·Medicine and Science in Sports and Exercise·J T HopkinsM L Cordova
Sep 28, 2001·The American Journal of Sports Medicine·J J IrrgangK D Shelborne
Oct 28, 2003·Experimental Brain Research·Robert Chen
Oct 20, 2004·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Riann M PalmieriChristopher D Ingersoll
Feb 18, 2005·The American Journal of Sports Medicine·Glenn N WilliamsLynn Snyder-Mackler
Jul 21, 2007·Neuron·Mark Hallett
May 28, 2008·Clinics in Sports Medicine·Riann M Palmieri-SmithEdward M Wojtys
Dec 25, 2009·The Journal of Orthopaedic and Sports Physical Therapy·Lynne Patterson SturgillMichael J Axe
Jan 13, 2010·Journal of Athletic Training·Joseph M HartChristopher D Ingersoll
Mar 26, 2011·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Jochen BaumeisterMichael Weiss
Feb 2, 2012·Journal of Sports Sciences·Brian G PietrosimoneMichael A Tevald
Apr 9, 2013·The American Journal of Sports Medicine·Stephanie L Di StasiLynn Snyder-Mackler
May 16, 2013·Journal of Athletic Training·Riann M Palmieri-SmithRon Zernicke
Sep 4, 2014·Experimental Brain Research·Andrew J KittelsonJennifer E Stevens-Lapsley
Dec 24, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ulf ZiemannFlorian Müller-Dahlhaus
Jan 27, 2015·Journal of Athletic Training·Christopher M KuenzeJoseph M Hart
Feb 20, 2015·Scandinavian Journal of Medicine & Science in Sports·A S LepleyB G Pietrosimone
Apr 7, 2015·Journal of Athletic Training·Brian G PietrosimonePhillip A Gribble
Apr 23, 2015·The Journal of Orthopaedic and Sports Physical Therapy·Sarah ClaggLaura C Schmitt
Jul 2, 2015·Sports Health·Rick W WrightUNKNOWN MOON Group
Dec 15, 2015·Orthopaedic Journal of Sports Medicine·Michael P HallOrr Limpisvasti
Jul 1, 2016·The Journal of Knee Surgery·Robert A MagnussenTimothy E Hewett
Feb 18, 2017·Orthopaedic Journal of Sports Medicine·Kelechi R OkorohaVasilios Moutzouros
Mar 25, 2017·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Maxine TeSiobhan M Schabrun

❮ Previous
Next ❯

Citations

Apr 30, 2020·Journal of Athletic Training·Steven M DaviLindsey K Lepley
Sep 1, 2020·Sports Health·Lindsey K LepleyAdam S Lepley
Mar 18, 2020·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ryan ZarzyckiLynn Snyder-Mackler
Jan 14, 2021·Journal of Sport Rehabilitation·Steven M DaviLindsey K Lepley
Sep 3, 2021·Journal of Sport Rehabilitation·Adam S Lepley, Lindsey K Lepley

❮ Previous
Next ❯

Related Concepts

Related Feeds

Auditory Perception

Auditory perception is the ability to receive and interpret information attained by the ears. Here is the latest research on factors and underlying mechanisms that influence auditory perception.