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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ely, Matthew R. Romero, Steven A. Sieck, Dylan C. Mangum, Joshua E. Luttrell, Meredith J. Halliwill, John R. |
| Description | Author Affiliation: Ely MR ( University of Oregon.); Romero SA ( UT Southwestern Medical Center.); Sieck DC ( Mayo Clinic.); Mangum JE ( University of South Carolina.); Luttrell MJ ( University of Oregon.); Halliwill JR ( University of Oregon halliwil@uoregon.edu.) |
| Abstract | Histamine contributes to elevations in skeletal muscle blood flow following exercise, which raises the possibility that histamine is an important mediator of the inflammatory response to exercise. We examined the influence of antihistamines on post-exercise blood flow, inflammation, muscle damage, and delayed onset muscle soreness (DOMS) in a model of moderate exercise-induced muscle damage. Subjects consumed either a combination of fexofenadine and ranitidine (blockade, n=12) or nothing (control, n=12) before 45 min of downhill running (-10% grade). Blood flow to the leg was measured prior to and throughout 120 min of exercise recovery. Markers of inflammation, muscle damage, and DOMS were obtained prior to and at 0, 6, 12, 24, 48, and 72 h post-exercise. At 60 min post-exercise, blood flow was reduced ~29% with blockade compared to control (P < 0.05). Markers of inflammation were elevated after exercise (TNF- , IL-6), but did not differ between control and blockade. Creatine kinase concentrations peaked 12 h after exercise and the overall response was greater with blockade (18.3±3.2 kUâL âh) compared to control (11.6±2.0 kUâL âh; P < 0.05). Reductions in muscle strength in control (-19.3±4.3% at 24 h) were greater than blockade (-7.8±4.8%; P < 0.05), and corresponded with greater perceptions of pain/discomfort in control compared to blockade. In conclusion, histamine-receptor blockade reduced post-exercise blood flow, had no effect on the pattern of inflammatory markers, increased serum creatine kinase concentrations, attenuated muscle strength loss, and reduced pain perception following muscle-damaging exercise. |
| File Format | HTM / HTML |
| ISSN | 87507587 |
| e-ISSN | 15221601 |
| Journal | Journal of Applied Physiology |
| Language | English |
| Publisher | American Physiological Society |
| Publisher Date | 2016-08-04 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Applied Physiology Molecular Biology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Physiology (medical) Sports Science |
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