Concurrent validity of five prediction equations to evaluate fat percentage in a sports group expected to yield high performance from Medellín, Colombia
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| Format: | Artículo científico |
| Sprache: | en |
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Instituto Nacional de Salud
2021
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| _version_ | 1876477310065967104 |
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| author | Ana Lucía López |
| author_facet | Ana Lucía López |
| contents | Concurrent validity of five prediction equations to evaluate fat percentage in a sports group expected to yield high performance from Medellín, Colombia Ana Lucía López Juan David Vélez Angélica María García Elkin Fernando Arango Medicina child photon adolescent anthropometry adipose tissue Introduction: No equations to predict the body composition of athletes from Medellín expected to have high performance have been constructed and, thus, decisions regarding their training and nutrition plans lack support.Objective: To calculate the concurrent validity of five prediction equations for fat percentage in a group of athletes from Medellín, Colombia, expected to yield high performance. Materials and methods: We conducted a cross-sectional analysis to validate diagnostic tests using secondary-source data of athletes under the age of 18 who were part of the "Medellín Team'.' The gold standard was dual-energy X-ray densitometry (DEXA). We analyzed the Slaughter, Durnin and Rahaman, Lohman, and Johnston prediction equations, as well as the five-component model. We used the intraclass correlation coefficient to assess the consistency of the methods and the Bland-Altman plot to calculate the average bias and agreement limits of each of the equations.Results: We included 101 athletes (50,5 % of them women). The median age was 14,8 years (IR: 13,0 - 16,0). The concurrent validity was "good/excellent" for the Johnston and the Durnin and Rahaman equations and the five-components model. The Lohman equation overestimated the fat percentage in 12,7 points. All of the equations showed broad agreement limits. Conclusions: The Durnin and Rahaman and the Johnston equations, as well as the five-component model, can be used to predict the FP in the study population as they showed a "good/excellent" concurrent validity and a low average bias. The equations analyzed have low accuracy, which hinders their use to diagnose the individual fat percentage within this population. 2021 artículo científico 0120-4157 https://www.redalyc.org/articulo.oa?id=84366917013 https://www.redalyc.org/journal/843/84366917013/ https://www.redalyc.org/journal/843/84366917013/html/ https://www.redalyc.org/journal/843/84366917013/84366917013.epub https://www.redalyc.org/journal/843/84366917013/movil 10.7705/biomedica.5333 en http://www.redalyc.org/revista.oa?id=843 Biomédica application/pdf Instituto Nacional de Salud Biomédica (Colombia) Num.1 Vol.41 |
| format | Artículo científico |
| id | redalyc_84366917013 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Instituto Nacional de Salud |
| spellingShingle | Concurrent validity of five prediction equations to evaluate fat percentage in a sports group expected to yield high performance from Medellín, Colombia Ana Lucía López Medicina child photon adolescent anthropometry adipose tissue Concurrent validity of five prediction equations to evaluate fat percentage in a sports group expected to yield high performance from Medellín, Colombia Ana Lucía López Juan David Vélez Angélica María García Elkin Fernando Arango Medicina child photon adolescent anthropometry adipose tissue Introduction: No equations to predict the body composition of athletes from Medellín expected to have high performance have been constructed and, thus, decisions regarding their training and nutrition plans lack support.Objective: To calculate the concurrent validity of five prediction equations for fat percentage in a group of athletes from Medellín, Colombia, expected to yield high performance. Materials and methods: We conducted a cross-sectional analysis to validate diagnostic tests using secondary-source data of athletes under the age of 18 who were part of the "Medellín Team'.' The gold standard was dual-energy X-ray densitometry (DEXA). We analyzed the Slaughter, Durnin and Rahaman, Lohman, and Johnston prediction equations, as well as the five-component model. We used the intraclass correlation coefficient to assess the consistency of the methods and the Bland-Altman plot to calculate the average bias and agreement limits of each of the equations.Results: We included 101 athletes (50,5 % of them women). The median age was 14,8 years (IR: 13,0 - 16,0). The concurrent validity was "good/excellent" for the Johnston and the Durnin and Rahaman equations and the five-components model. The Lohman equation overestimated the fat percentage in 12,7 points. All of the equations showed broad agreement limits. Conclusions: The Durnin and Rahaman and the Johnston equations, as well as the five-component model, can be used to predict the FP in the study population as they showed a "good/excellent" concurrent validity and a low average bias. The equations analyzed have low accuracy, which hinders their use to diagnose the individual fat percentage within this population. 2021 artículo científico 0120-4157 https://www.redalyc.org/articulo.oa?id=84366917013 https://www.redalyc.org/journal/843/84366917013/ https://www.redalyc.org/journal/843/84366917013/html/ https://www.redalyc.org/journal/843/84366917013/84366917013.epub https://www.redalyc.org/journal/843/84366917013/movil 10.7705/biomedica.5333 en http://www.redalyc.org/revista.oa?id=843 Biomédica application/pdf Instituto Nacional de Salud Biomédica (Colombia) Num.1 Vol.41 |
| title | Concurrent validity of five prediction equations to evaluate fat percentage in a sports group expected to yield high performance from Medellín, Colombia |
| topic | Medicina child photon adolescent anthropometry adipose tissue |
| url | https://www.redalyc.org/articulo.oa?id=84366917013 https://www.redalyc.org/journal/843/84366917013/ https://www.redalyc.org/journal/843/84366917013/html/ https://www.redalyc.org/journal/843/84366917013/84366917013.epub https://www.redalyc.org/journal/843/84366917013/movil |