The influence of experimental anterior knee pain during running on electromyography and articular cartilage metabolism
| Autor: | Jason G. Winward, Matthew K. Seeley, Devin Francom, Michael G. Leavitt, W.M. Denning, S. Woodland, J. T. Hopkins, Allen C. Parcell |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
Cartilage Articular Male Adolescent Knee Joint Vastus medialis Biomedical Engineering Articular cartilage Electromyography Cartilage Oligomeric Matrix Protein Sodium Chloride Quadriceps Muscle Running Young Adult Rheumatology Humans Medicine Orthopedics and Sports Medicine Treadmill Muscle Skeletal Cartilage oligomeric matrix protein Infrapatellar fat pad medicine.diagnostic_test biology business.industry Anterior knee pain COMP Anatomy musculoskeletal system Knee pain Arthralgia body regions Anesthesia biology.protein Female medicine.symptom business |
| Zdroj: | Osteoarthritis and Cartilage. 22:1111-1119 |
| ISSN: | 1063-4584 |
| DOI: | 10.1016/j.joca.2014.05.006 |
| Popis: | SummaryObjectiveTo determine whether anterior knee pain (AKP), during running, acutely affects lower-extremity electromyography (EMG) and articular cartilage metabolism.MethodsA within-subjects design was used. Each of 12 able-bodied subjects ran on a treadmill for 30 min for three different sessions: control (no infusion), sham (0.9% NaCl infusion into the involved-leg infrapatellar fat pad), and pain (5.0% NaCl infusion into the involved-leg infrapatellar fat pad). Bilateral surface EMG was monitored for the vastus medialis (VM), vastus lateralis (VL), and gastrocnemius (GA). Serum cartilage oligomeric matrix protein (COMP) concentration was determined before, after, and 60 min after the run. A functional analysis approach was used to compare EMG amplitude, across the entire stance phase, between sessions and legs. Mixed-model analysis of covariance was used to compare serum COMP concentration between sessions, across time.ResultsRelative to the uninvolved leg, greater involved-leg VL and GA EMG amplitude existed during midstance for the sham and control sessions (P |
| Databáze: | OpenAIRE |
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