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PhA has been considered an indicator of nutritional and health status, but it is uncertain whether it could be used as a fitness or athletic performance indicator. <jats:italic><jats:bold>Objective<\/jats:bold>:<\/jats:italic> To analyze the relationship between PhA and the fitness and athletic performance of adolescent boxers and to know whether this association is independent of body composition. <jats:italic><jats:bold>Methods<\/jats:bold>:<\/jats:italic> Thirty-seven trained youth boxers (15\u201318\u00a0y old) participated in the study. Participants underwent anthropometry and bioelectrical impedance assessments. The following tests were conducted: Fitness-Gram battery; speed, agility, and quickness; ball throws; punch impact force; bench press maximal strength; and vertical and horizontal jumps. Linear regression models were estimated and adjusted by covariates. <jats:italic><jats:bold>Results<\/jats:bold>:<\/jats:italic> The PhA was related to upper-limb strength. Nevertheless, in linear regression models, after adjusting models by body composition, only PhA remained as a predictor of relative maximal strength. The PhA was not a predictor of speed, agility, and quickness; cardiorespiratory fitness; or lower-limb power, in which adiposity was the main predictor of fitness. <jats:italic><jats:bold>Conclusions<\/jats:bold>:<\/jats:italic> In adolescent boxers, PhA can predict upper-limb maximal strength independently of bioelectrical impedance analysis premises. However, compared with mucle mass, PhA is not a better predictor of upper-limb maximal strength.<\/jats:p>","DOI":"10.1123\/pes.2023-0165","type":"journal-article","created":{"date-parts":[[2024,7,28]],"date-time":"2024-07-28T05:55:02Z","timestamp":1722146102000},"page":"201-210","source":"Crossref","is-referenced-by-count":4,"title":["Phase Angle and Body Composition as Predictors of Fitness and Athletic Performance in Adolescent Boxers"],"prefix":"10.1123","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7929-1765","authenticated-orcid":true,"given":"C\u00e9sar Iv\u00e1n","family":"Ayala-Guzm\u00e1n","sequence":"first","affiliation":[{"name":"Doctorado en Ciencias Biol\u00f3gicas y de la Salud, Universidad Aut\u00f3noma Metropolitana, Ciudad de M\u00e9xico, Mexico"},{"name":"Universidad del Valle de M\u00e9xico campus Coyoac\u00e1n-Tlalpan, Ciudad de M\u00e9xico, Mexico"},{"name":"Health Care Department, Universidad Aut\u00f3noma Metropolitana, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5870-1729","authenticated-orcid":true,"given":"Luis","family":"Ortiz-Hernandez","sequence":"additional","affiliation":[{"name":"Universidad del Valle de M\u00e9xico campus Coyoac\u00e1n-Tlalpan, Ciudad de M\u00e9xico, Mexico"},{"name":"Health Care Department, Universidad Aut\u00f3noma Metropolitana, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristian","family":"Escudero Malpica","sequence":"additional","affiliation":[{"name":"Health Care Department, Universidad Aut\u00f3noma Metropolitana, Mexico City, Mexico"},{"name":"Professional College of Graduates in Sports Training, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alejandro","family":"Macias Rosas","sequence":"additional","affiliation":[{"name":"Health Care Department, Universidad Aut\u00f3noma Metropolitana, Mexico City, Mexico"},{"name":"Professional College of Graduates in Sports Training, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jesus Ivan","family":"Castro Avila","sequence":"additional","affiliation":[{"name":"Health Care Department, Universidad Aut\u00f3noma Metropolitana, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"100","reference":[{"issue":"3","key":"r1","series-title":"Sports Med","doi-asserted-by":"publisher","first-page":"227","DOI":"10.2165\/11597140-000000000-00000","article-title":"Current status of body composition assessment in sport: review and position statement on behalf of the ad hoc research working group on body composition health and performance, under the auspices of the I.O.C. 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