Time course of changes in performance and inflammatory responses after acute plyometric exercise
| Autor: | Ioannis I. Douroudos, Michalis G. Nikolaidis, Kyriakos Taxildaris, Alexandra Avloniti, Vassilios Gourgoulis, Athanasios Z. Jamurtas, Athanasios Chatzinikolaou, Trifon Tofas, Paraskevi Malliou, Yiannis Michailidis, Ilias Georgiadis, Anastasia Beneka, Ioannis G. Fatouros, Dimitrios Mandalidis |
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| Předmět: |
Adult
Male medicine.medical_specialty Time Factors Knee Joint Physical Therapy Sports Therapy and Rehabilitation Isometric exercise medicine.disease_cause chemistry.chemical_compound Jumping Internal medicine Lactate dehydrogenase Medicine Plyometrics Humans Orthopedics and Sports Medicine Leukocytosis Muscle Strength Exercise physiology Range of Motion Articular Acute-Phase Reaction Muscle Skeletal Exercise Leg biology business.industry C-reactive protein General Medicine Endocrinology chemistry Muscle Fatigue biology.protein Physical therapy Cytokines Creatine kinase medicine.symptom business Biomarkers |
| Zdroj: | Scopus-Elsevier |
| Popis: | The objectives of the present investigation were to study the inflammatory and performance responses after an acute bout of intense plyometric exercise during a prolonged recovery period. Participants were randomly assigned to either an experimental group (P, n = 12) that performed intense plyometric exercises or a control group (C, n = 12) that rested. The delayed onset of muscle soreness (DOMS), knee range of motion (KROM), creatine kinase (CK) and lactate dehydrogenase (LDH) activities, white blood cell count, C reactive protein (CRP), uric acid (UA), cortisol, testosterone, IL-6, IL-1b strength (isometric and isokinetic), and countermovement (CMJ) and static (SJ) jumping performance were measured at rest, immediately postexercise and at 24, 48, 72, 96, and 120 hours of recovery. Lactate was measured at rest and postexercise. Strength remained unchanged throughout recovery, but CMJ and SJ declined (p < 0.05) by 8-20%. P induced a marked rise in DOMS, CK, and LDH (peaked 24-48 hours postexercise) and a KROM decline. An acute-phase inflammatory response consisting of leukocytosis (postexercise and at 24 hours), an IL-6, IL-1b, CRP, and cortisol elevation (during the first 24 hours of recovery) and a delayed increase of UA (peaked at 48 hours) and testosterone (peaked at 72 hours) was observed in P. The results of this investigation indicate that performing an acute bout of intense plyometric exercise may induce a short-term muscle damage and marked but transient inflammatory responses. Jumping performance seems to deteriorate for as long as 72 hours postexercise, whereas strength appears to remain unchanged. The acute-phase inflammatory response after a plyometric exercise protocol appears to follow the same pattern as in other exercise models. These results clearly indicate the need of sufficient recovery between successive plyometric exercise training sessions. |
| Databáze: | OpenAIRE |
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