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Comparison of the effect of internal and external focus of attention on testing core stability measurements
Mehran Salimi, Dr Hooman Minoonejad, Dr Mohammad Karimizadeh Ardakani, Mohammad Javad Sherafat, Dr Elahe Arab Ameri,
Volume 0, Issue 0 (11-2019)
Abstract
Purpose: Core endurance is one of the factors that measuring the core stability. Researches have shown that the change in the attention during the activities causes changes in the electromyography activity of the muscles as well as changes in the quality of the movement. The purpose of this research is to determine whether changes in the focus of the attention can change the measurement of the core stability. Methods: 22 healthy non-athletes participated in this research ((,which their core stability was measure by McGill test. These people were divided into three groups and performed this test in three consecutive days with a different attention (internal, external, control). Results: The results of the one-way repeated-measures ANOVA showed that there was a significant main effect of type of attention on core stability of nonathletic persons. However, the average core stability of the external attention stage was significantly higher than the average of the pre-test stage (P<0.001). CONCLUSION: Focus of attention can cause changes in the measurement of the core stability, in such a way that adopting the external focus of attention during the test recorded more average core stability.





 
The Effect of Water Immersion and Transcranial Direct Current Stimulation (TDCS) during Recovery Period on Changes in Blood Lactate and Subsequent Performance of Swimmers
Ali Molaei , Sedigheh Hosseinpour Delavar, Ghahramani Mehran, Reza Jabbari, Mohammad Jalilvand,
Volume 18, Issue 20 (11-2020)
Abstract
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)

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