Delayed-onset muscle soreness induced by low-load blood flow-restricted exercise
| Autor: | Brian C. Clark, Douglas J. Dearth, Todd M. Manini, Jonathan Umbel, Richard L. Hoffman, Gary S. Chleboun |
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| Rok vydání: | 2009 |
| Předmět: |
Adult
Male Pain Threshold medicine.medical_specialty Sports medicine Physiology Hemodynamics Pain Physical exercise Quadriceps Muscle Young Adult Physiology (medical) Internal medicine Delayed onset muscle soreness medicine Eccentric Humans Orthopedics and Sports Medicine Knee Exercise Kaatsu Muscle fatigue business.industry Public Health Environmental and Occupational Health General Medicine Thigh Muscle Fatigue Cardiology Physical therapy Female medicine.symptom business Muscle contraction Muscle Contraction |
| Zdroj: | European journal of applied physiology. 107(6) |
| ISSN: | 1439-6327 |
| Popis: | We performed two experiments to describe the magnitude of delayed-onset muscle soreness (DOMS) associated with blood flow restriction (BFR) exercise and to determine the contribution of the concentric (CON) versus eccentric (ECC) actions of BFR exercise on DOMS. In experiment 1, nine subjects performed three sets of unilateral knee extension BFR exercise at 35% of maximal voluntary contraction (MVC) to failure with a thigh cuff inflated 30% above brachial systolic pressure. Subjects repeated the protocol with the contralateral limb without flow restriction. Resting soreness (0-10 scale) and algometry (pain-pressure threshold; PPT) were assessed before and 24, 48 and 96 h post-exercise. Additionally, MVC and vastus lateralis cross-sectional area (CSA) were measured as indices of exercise-induced muscle damage. At 24-h post-exercise, BFR exercise resulted in more soreness than exercise without BFR (2.8 +/- 0.3 vs 1.7 +/- 0.5) and greater reductions in PPT (15.2 +/- 1.7 vs. 20 +/- 2.3 N) and MVC (14.1 +/- 2.5% decrease vs. 1.5 +/- 4.5% decrease) (p |
| Databáze: | OpenAIRE |
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