Immune system modulation in response to strength training with blood flow restriction
Date
2022
Authors
de Souza, T.S.P.
Pfeiffer, P.A.D.S.
Pereira, J.D.N.
Pereira Neto, E.A.
Dutra, T.S.
Mendonça, M.G.L.D.
Cirilo Sousa, M.S.
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Journal of Strength and Conditioning Research, 2022; 36(8):2156-2161
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Abstract
This study aimed to compare the strength training with blood flow restriction (ST-BFR) to the multiple-set training at different intensities(30% of 1RM and 75% of 1RM) as for their effect on immunoinflammatory responses (total leukocytes, segmented neutrophils, lymphocytes, monocytes, and lymphocyte sub populations). It is a randomized experimental study with a repeated measures design with inter and intragroup effects of a strength training session. Eighteen physically active adults aged 20–31 years(26.1763.7 years), apparently healthy, performed a strength training session with 2 exercises. Six milliliters of blood were collected before the training, immediately after the training, and at 30 minutes and 24 hours after the session to carry out the analyses. The results showed that the strength training could promote modulation (time effect) in the leukocyte count (F 5 25.86, p , 0.01, h2 50.74), regardless of the method used. Neutrophils (F522.71, p,0.01, h250.60), specifically the TCD4+ lymphocytes (F56.33,p , 0.05, h2 5 0, 3), were the main factors responsible for this variation. Despite the similarity, there were differences between the methods in the modulations of total leukocytes (F 5 4.16, p , 0.05, h2 5 0.36) and neutrophils (F 5 4.80, p , 0.05, h2 5 0.39). In conclusion, compared to the multiple-set training, ST-BFR produces immunoinflammatory responses similar to the low-intensity training and different from the high-intensity training. However, the demargination process of some cells was different depending on the method and intensity used. Nevertheless, these variations are compatible with an appropriate recovery process, because the amplitude and length of the modulation curves of leukocytes, and lymphocyte subpopulations were not compatible with immunosuppression.
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Copyright 2019 National Strength and Conditioning Association