Research in Sport Medicine and Technology

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Molaei A, Hosseinpour Delavar S, Mehran G, Jabbari R, Jalilvand M. The Effect of Water Immersion and Transcranial Direct Current Stimulation (TDCS) during Recovery Period on Changes in Blood Lactate and Subsequent Performance of Swimmers. RSMT 2020; 18 (20) :49-58
URL: http://jsmt.khu.ac.ir/article-1-419-en.html

The present study was aimed to determine the effect of cold-water immersion and (TDCS) during the recovery period on blood lactate changes in and subsequent performance of professional male swimmers. For this purpose, 20 male participated in this study in two days with an interval of 48 hours. The two-hundred meter breaststroke was performed every day and then the subjects participated in one of the protocols, an anodic stimulation (with intensity of 2 mA)or the artificially exposed to anodic stimulation on the first day, and on the second day they were experienced the cold water immersion (12° C).The subjects' blood lactate was measured. Finally, in order to measure the effect of the investigated methods on their performance, the 200-meter swim was repeated. To analyze the data dependent t-test and analysis of covariance, LSD follow-up, analysis of variance with repeated measures, were used. The results of this study indicated that swimming performance significantly improved only in the TDCS group, with a reduction in the record time (P = 0.001). Blood lactate showed a greater decrease in the cold water immersion group (P = 0.001)