Journal
BIOMED RESEARCH INTERNATIONAL
Volume 2014, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2014/694801
Keywords
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Funding
- FAPDF, Brazil
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This investigation assessed the lymphocyte subset response to three days of intermittent run exercise to exhaustion. Twelve healthy college- aged males (.. = 8) and females (.. = 4) (age = 26 +/- 4 years; height = 170.2 +/- 10 cm; body mass = 75 +/- 18 kg) completed an exertion test (maximal running speed and VO2max) and later performed three consecutive days of an intermittent run protocol to exhaustion (30 sec at maximal running speed and 30 sec at half of themaximal running speed). Blood was collected before exercise (PRE) and immediately following the treadmill bout (POST) each day. When the absolute change from baseline was evaluated (i. e.,. baseline), a significant change in CD4+ and CD8+ for CX3CR1 cells was observed by completion of the third day. Significant changes in both apoptosis and migration were observed following two consecutive days in CD19+ lymphocytes, and the influence of apoptosis persisted following the third day. Given these lymphocyte responses, it is recommended that a rest day be incorporated following two consecutive days of a high- intensity intermittent run program to minimize immune cell modulations and reduce potential susceptibility.
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