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Journal article
Examination of Corticospinal and Spinal Reflexive Excitability During the Course of Postoperative Rehabilitation After Anterior Cruciate Ligament Reconstruction
The journal of orthopaedic and sports physical therapy, v 50(9), pp 516-522
01 Sep 2020
PMID: 32741329
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
OBJECTIVE: To investigate corticospinal and spinal reflexive excitability and quadriceps strength in healthy athletes and athletes after anterior cruciate ligament reconstruction (ACLR) over the course of rehabilitation.
DESIGN: Prospective cohort study.
METHODS: Eighteen athletes with ACLR and 18 healthy athletes, matched by sex, age, and activity, were tested at (1) 2 weeks after surgery, (2) the "quiet knee" time point, defined as full range of motion and minimal effusion, and (3) return to running, defined as achieving a quadriceps index of 80% or greater. We measured (1) corticospinal excitability, using resting motor threshold (RMT) and motor-evoked potential amplitude at a stimulator intensity of 120% of RMT (MEP120) to the vastus medialis, (2) spinal reflexive excitability, calculating the ratio of the maximal Hoffmann reflex to the maximal M-wave to the vastus medialis, and (3) isometric quadriceps strength.
RESULTS: The ACLR group had higher RMTs in the nonsurgical limb and higher MEP120 in the surgical limb at all time points. The healthy-athlete group did not have interlimb differences. The RMT was positively associated with quadriceps strength 2 weeks after surgery; MEP120 was associated with quadriceps strength at all time points.
CONCLUSION: Compared to healthy athletes, athletes after ACLR had altered corticospinal excitability that did not change from 2 weeks after surgery to the time of return to running.
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Details
- Title
- Examination of Corticospinal and Spinal Reflexive Excitability During the Course of Postoperative Rehabilitation After Anterior Cruciate Ligament Reconstruction
- Creators
- Ryan Zarzycki - Arcadia UniversitySusanne M. Morton - University of DelawareCharalambos C. Charalambous - University of NicosiaBrian Pietrosimone - University of North Carolina at Chapel HillGlenn N. Williams - Drexel UniversityLynn Snyder-Mackler - University of Delaware
- Publication Details
- The journal of orthopaedic and sports physical therapy, v 50(9), pp 516-522
- Publisher
- J O S P T
- Number of pages
- 10
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000593467700006
- Scopus ID
- 2-s2.0-85090174404
- Other Identifier
- 991019169520904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Orthopedics
- Rehabilitation
- Sport Sciences