Fernando Carrasco, Maria Jose Arias-Tellez, Ignacio Solar-Altamirano, Jorge Inostroza, Gabriela Carrasco
{"title":"决定登山者成绩的因素是区域身体成分和力量,而非总体身体成分。","authors":"Fernando Carrasco, Maria Jose Arias-Tellez, Ignacio Solar-Altamirano, Jorge Inostroza, Gabriela Carrasco","doi":"10.3390/jfmk9040228","DOIUrl":null,"url":null,"abstract":"<p><p><b>Objective:</b> To compare the body composition of Chilean climbers of different performance levels and to determine the relation between the forearm and upper-trunk lean mass and the handgrip and upper-body traction strength, respectively. <b>Methods:</b> A cross-sectional study was carried out on thirty Chilean male adult climbers (26.1 ± 4.9 y.): nine of intermediate level (L1), eleven advanced (L2), and ten elite (L3). Through dual-energy X-Ray absorptiometry (DXA; Lunar Prodigy<sup>®</sup>), fat mass percentage (FM%), total lean mass (LM), forearm lean mass (FLM), and upper-trunk lean mass (UTLM) were measured. Total muscle mass (TMM) was also estimated. Handgrip strength (HGS) was measured with a Jamar<sup>®</sup> dynamometer. Maximum upper-body traction strength (UBTS) was evaluated with a standardized movement. The level of climbing was assessed according to IRCRA rules. <b>Results:</b> No differences in FM%, total LM, UTLM, or TMM between the groups were found. Left and assistant FLM were significantly higher in L3 (<i>p</i> = 0.047 and 0.041, respectively). HGS absolute, relative, and adjusted by FLM were not different between groups. FLM was associated with HGS in all segments (<i>p</i> ≤ 0.001). UBTS absolute values, and as adjusted by TMM, were significantly higher in L3 (<i>p</i> = 0.047 and <i>p</i> = 0.049, respectively). <b>Conclusions:</b> Left and non-dominant forearm lean mass were significantly higher in elite climbers. Handgrip strength was not significantly higher in elite climbers; however, the upper-body traction strength was significantly higher in elite climbers, independent of total or regional muscle mass.</p>","PeriodicalId":16052,"journal":{"name":"Journal of Functional Morphology and Kinesiology","volume":"9 4","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11587076/pdf/","citationCount":"0","resultStr":"{\"title\":\"Regional Body Composition and Strength, Not Total Body Composition, Are Determinants of Performance in Climbers.\",\"authors\":\"Fernando Carrasco, Maria Jose Arias-Tellez, Ignacio Solar-Altamirano, Jorge Inostroza, Gabriela Carrasco\",\"doi\":\"10.3390/jfmk9040228\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p><b>Objective:</b> To compare the body composition of Chilean climbers of different performance levels and to determine the relation between the forearm and upper-trunk lean mass and the handgrip and upper-body traction strength, respectively. <b>Methods:</b> A cross-sectional study was carried out on thirty Chilean male adult climbers (26.1 ± 4.9 y.): nine of intermediate level (L1), eleven advanced (L2), and ten elite (L3). Through dual-energy X-Ray absorptiometry (DXA; Lunar Prodigy<sup>®</sup>), fat mass percentage (FM%), total lean mass (LM), forearm lean mass (FLM), and upper-trunk lean mass (UTLM) were measured. Total muscle mass (TMM) was also estimated. Handgrip strength (HGS) was measured with a Jamar<sup>®</sup> dynamometer. Maximum upper-body traction strength (UBTS) was evaluated with a standardized movement. The level of climbing was assessed according to IRCRA rules. <b>Results:</b> No differences in FM%, total LM, UTLM, or TMM between the groups were found. Left and assistant FLM were significantly higher in L3 (<i>p</i> = 0.047 and 0.041, respectively). HGS absolute, relative, and adjusted by FLM were not different between groups. FLM was associated with HGS in all segments (<i>p</i> ≤ 0.001). UBTS absolute values, and as adjusted by TMM, were significantly higher in L3 (<i>p</i> = 0.047 and <i>p</i> = 0.049, respectively). <b>Conclusions:</b> Left and non-dominant forearm lean mass were significantly higher in elite climbers. Handgrip strength was not significantly higher in elite climbers; however, the upper-body traction strength was significantly higher in elite climbers, independent of total or regional muscle mass.</p>\",\"PeriodicalId\":16052,\"journal\":{\"name\":\"Journal of Functional Morphology and Kinesiology\",\"volume\":\"9 4\",\"pages\":\"\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11587076/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Functional Morphology and Kinesiology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/jfmk9040228\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"SPORT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Functional Morphology and Kinesiology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/jfmk9040228","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"SPORT SCIENCES","Score":null,"Total":0}
Regional Body Composition and Strength, Not Total Body Composition, Are Determinants of Performance in Climbers.
Objective: To compare the body composition of Chilean climbers of different performance levels and to determine the relation between the forearm and upper-trunk lean mass and the handgrip and upper-body traction strength, respectively. Methods: A cross-sectional study was carried out on thirty Chilean male adult climbers (26.1 ± 4.9 y.): nine of intermediate level (L1), eleven advanced (L2), and ten elite (L3). Through dual-energy X-Ray absorptiometry (DXA; Lunar Prodigy®), fat mass percentage (FM%), total lean mass (LM), forearm lean mass (FLM), and upper-trunk lean mass (UTLM) were measured. Total muscle mass (TMM) was also estimated. Handgrip strength (HGS) was measured with a Jamar® dynamometer. Maximum upper-body traction strength (UBTS) was evaluated with a standardized movement. The level of climbing was assessed according to IRCRA rules. Results: No differences in FM%, total LM, UTLM, or TMM between the groups were found. Left and assistant FLM were significantly higher in L3 (p = 0.047 and 0.041, respectively). HGS absolute, relative, and adjusted by FLM were not different between groups. FLM was associated with HGS in all segments (p ≤ 0.001). UBTS absolute values, and as adjusted by TMM, were significantly higher in L3 (p = 0.047 and p = 0.049, respectively). Conclusions: Left and non-dominant forearm lean mass were significantly higher in elite climbers. Handgrip strength was not significantly higher in elite climbers; however, the upper-body traction strength was significantly higher in elite climbers, independent of total or regional muscle mass.