Navegando por Autor "Costa, Karine Beatriz"
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Item Modulation of leukocyte subsets mobilization in response to exercise by water immersion recovery.(2022) Ottone, Vinícius de Oliveira; Paula, Fabrício de; Brozinga, Paula Fernandes Aguiar; Matos, Mariana Aguiar de; Duarte, Tamiris Campos; Costa, Karine Beatriz; Garcia, Bruna Caroline Chaves; Silva, Thyago José; Magalhães, Flavio de Castro; Coimbra, Cândido Celso; Esteves, Elizabethe Adriana; Pinto, Kelerson Mauro de Castro; Amorim, Fabiano Trigueiro; Vieira, Etel RochaPurpose: To investigate the effect of different water immersion temperatures on the kinetics of blood markers of skeletal muscle damage and the main leukocyte subpopulations. Methods: Eleven recreationally trained young men participated in four experimental sessions consisting of unilateral eccentric knee flexion and 90 min of treadmill running at 70% of peak oxygen uptake, followed by 15 min of water immersion recovery at 15, 28 or 38°C. In the control condition participants remained seated at room temperature. Four hours after exercise recovery, participants completed a performance test. Blood samples were obtained before and immediately after exercise, after immersion, immediately before and after the performance test and 24 h after exercise. The number of leukocyte populations and the percentage of lymphocyte and monocytes subsets, as well as the serum activity of creatine kinase and aspartate aminotransferase were determined. Results: Leukocytosis and increase in blood markers of skeletal muscle damage were observed after the exercise. Magnitude effect analysis indicated that post-exercise hot- water immersion likely reduced the exercise-induced lymphocytosis and monocytosis. Despite reduced monocyte count, recovery by 38°C immersion, as well as 28°C, likely increased the percentage of non-classical monocytes in the blood. The percentage of CD25+ cells in the CD4 T cell subpopulation was possibly lower after immersion in water at 28 and 15°C. No effect of recovery by water immersion was observed for serum levels of creatine kinase and aspartate aminotransferase. Conclusions: Recovery by hot-water immersion likely attenuated the leukocytosis and increased the mobilization of non-classical monocytes induced by a single session of exercise combining resistance and endurance exercises, despite no effect of water immersion on markers of skeletal muscle damage. The monocyte response mediated by hot water immersion may lead to the improvement of the inflammatory response evoked by exercise in the skeletal muscle.Item Similar inflammatory adaptation in women following 10 weeks of two equalized resistance training with different muscle action duration.(2022) Pinto, Kelerson Mauro de Castro; Diniz, Rodrigo César Ribeiro; Tourino, Frank Douglas; Lacerda, Lucas Túlio de; Bearzoti, Eduardo; Costa, Karine Beatriz; Souza, Débora Maria Soares de; Lima, Fernando Vitor; Vieira, Etel Rocha; Chagas, Mauro Heleno; Silva, André Talvani Pedrosa daThis study is aimed at evaluating the profile of inflammatory markers and components of redox regulation in untrained women after 10 weeks of resistance training using equalized protocols but different muscle action duration (MAD). Twenty-two women underwent progressive resistance training exercising the knee extensor muscles for 10 weeks—3x/week, with 3-5 sets of 6 repetitions at 50% of the 1 repetition maximum strength test (1RM), with a rest of 180 s between the series, following the training protocol (i) 5 s of concentric muscle action for 1 s of eccentric muscle action (5C-1E) and (ii) 1 s of concentric muscle action for 5 s of eccentric muscle action (1C-5E). Quadriceps muscle hypertrophy maximum strength (1RM) and redox regulation/muscle damage/inflammatory markers (CAT, SOD, TBARS, FRAP, CH, LDH, CXCL8, and CCL2) were evaluated. Plasma markers were evaluated before and 30 minutes after the first and last training sessions. A similar gain in hypertrophy and maximum strength was observed in both groups. However, in the 5C-1E, a significant major effect was observed for SOD (F1:19 = 10:480, p = 0:004) and a significant major time effect, with a reduction in the last training session, was observed for CXCL8 (F1:37 = 27:440, p < 0:001). In conclusion, similar protocols of resistance training, with different MAD, produced similar inflammatory and adaptive responses to strength training. As the training load is progressive, the maintenance of this inflammatory and redox regulation profile suggests an adaptive response to the proposed strength training.