Antonio Beira de Andrade Junior, Elena Marie Peixoto Ruthes de Andrade, Guilherme Rodrigues de Souza, Agnaldo José Lopes
{"title":"业余泰拳手经过 8 周的特殊训练和营养再教育后自主神经系统和身体成分的适应性：临床试验。","authors":"Antonio Beira de Andrade Junior, Elena Marie Peixoto Ruthes de Andrade, Guilherme Rodrigues de Souza, Agnaldo José Lopes","doi":"10.3390/sports13030072","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Considering that the nervous system regulates cardiac autonomic modulation (CAM) and that low CAM is associated with poorer performance, it is essential to evaluate the effects of training to increase parasympathetic modulation in Muay Thai (MT) fighters. Therefore, the aim of this study was to evaluate the effects of an 8-week intervention based on strength training and nutritional counseling on performance, CAM, and nutritional status in amateur MT fighters.</p><p><strong>Methods: </strong>This is a longitudinal and interventional study in which 22 MT fighters underwent a strength training program and nutritional protocol. Before and after the intervention, they underwent the ten-second frequency speed of kick test (FSKT-10s), multiple frequency speed of kick test (FSKT-mult), bioimpedance analysis (BIA), and assessment of heart rate variability.</p><p><strong>Results: </strong>After the intervention, there was an increase in the number of kicks in both FSKT-10s and FSKT-mult (<i>p</i> = 0.0008 and <i>p</i> = 0.032, respectively). In BIA, there was a significant increase in both fat-free mass and basal metabolic rate (<i>p</i> = 0.031 and <i>p</i> = 0.020, respectively). After the intervention, significant increases were observed during the physical test in the following variables that denote improvement in parasympathetic modulation: square root of the mean squared differences of successive RR intervals (<i>p</i> = 0.005); percentage of adjacent RR intervals with a difference in duration greater than 50 ms (<i>p</i> = 0.002); high frequency range (<i>p</i> < 0.0001); and standard deviation measuring the dispersion of points in the plot perpendicular to the line of identity (<i>p</i> = 0.004).</p><p><strong>Conclusions: </strong>In amateur MT fighters, an intervention with strength training and nutritional guidance is able to improve CAM through greater parasympathetic activation. Furthermore, there is an improvement in performance and body composition after the intervention.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"13 3","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946514/pdf/","citationCount":"0","resultStr":"{\"title\":\"Adaptations of the Autonomic Nervous System and Body Composition After 8 Weeks of Specific Training and Nutritional Re-Education in Amateur Muay Thai Fighters: A Clinical Trial.\",\"authors\":\"Antonio Beira de Andrade Junior, Elena Marie Peixoto Ruthes de Andrade, Guilherme Rodrigues de Souza, Agnaldo José Lopes\",\"doi\":\"10.3390/sports13030072\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Considering that the nervous system regulates cardiac autonomic modulation (CAM) and that low CAM is associated with poorer performance, it is essential to evaluate the effects of training to increase parasympathetic modulation in Muay Thai (MT) fighters. Therefore, the aim of this study was to evaluate the effects of an 8-week intervention based on strength training and nutritional counseling on performance, CAM, and nutritional status in amateur MT fighters.</p><p><strong>Methods: </strong>This is a longitudinal and interventional study in which 22 MT fighters underwent a strength training program and nutritional protocol. Before and after the intervention, they underwent the ten-second frequency speed of kick test (FSKT-10s), multiple frequency speed of kick test (FSKT-mult), bioimpedance analysis (BIA), and assessment of heart rate variability.</p><p><strong>Results: </strong>After the intervention, there was an increase in the number of kicks in both FSKT-10s and FSKT-mult (<i>p</i> = 0.0008 and <i>p</i> = 0.032, respectively). In BIA, there was a significant increase in both fat-free mass and basal metabolic rate (<i>p</i> = 0.031 and <i>p</i> = 0.020, respectively). After the intervention, significant increases were observed during the physical test in the following variables that denote improvement in parasympathetic modulation: square root of the mean squared differences of successive RR intervals (<i>p</i> = 0.005); percentage of adjacent RR intervals with a difference in duration greater than 50 ms (<i>p</i> = 0.002); high frequency range (<i>p</i> < 0.0001); and standard deviation measuring the dispersion of points in the plot perpendicular to the line of identity (<i>p</i> = 0.004).</p><p><strong>Conclusions: </strong>In amateur MT fighters, an intervention with strength training and nutritional guidance is able to improve CAM through greater parasympathetic activation. Furthermore, there is an improvement in performance and body composition after the intervention.</p>\",\"PeriodicalId\":53303,\"journal\":{\"name\":\"Sports\",\"volume\":\"13 3\",\"pages\":\"\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946514/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/sports13030072\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"SPORT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/sports13030072","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"SPORT SCIENCES","Score":null,"Total":0}
Adaptations of the Autonomic Nervous System and Body Composition After 8 Weeks of Specific Training and Nutritional Re-Education in Amateur Muay Thai Fighters: A Clinical Trial.
Background: Considering that the nervous system regulates cardiac autonomic modulation (CAM) and that low CAM is associated with poorer performance, it is essential to evaluate the effects of training to increase parasympathetic modulation in Muay Thai (MT) fighters. Therefore, the aim of this study was to evaluate the effects of an 8-week intervention based on strength training and nutritional counseling on performance, CAM, and nutritional status in amateur MT fighters.
Methods: This is a longitudinal and interventional study in which 22 MT fighters underwent a strength training program and nutritional protocol. Before and after the intervention, they underwent the ten-second frequency speed of kick test (FSKT-10s), multiple frequency speed of kick test (FSKT-mult), bioimpedance analysis (BIA), and assessment of heart rate variability.
Results: After the intervention, there was an increase in the number of kicks in both FSKT-10s and FSKT-mult (p = 0.0008 and p = 0.032, respectively). In BIA, there was a significant increase in both fat-free mass and basal metabolic rate (p = 0.031 and p = 0.020, respectively). After the intervention, significant increases were observed during the physical test in the following variables that denote improvement in parasympathetic modulation: square root of the mean squared differences of successive RR intervals (p = 0.005); percentage of adjacent RR intervals with a difference in duration greater than 50 ms (p = 0.002); high frequency range (p < 0.0001); and standard deviation measuring the dispersion of points in the plot perpendicular to the line of identity (p = 0.004).
Conclusions: In amateur MT fighters, an intervention with strength training and nutritional guidance is able to improve CAM through greater parasympathetic activation. Furthermore, there is an improvement in performance and body composition after the intervention.
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