Examinando por Autor "Rangel-Colmenero, Blanca R."

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    Analysis of Dietary Intake and Body Composition of Collegiate Runers
    (Universidad de la Frontera, 2023-06) García-Dávila, Myriam Zaraí; Ramírez-Siqueiros, María Grethel; Bauer, Pascal; Makivic, Bojan; Hernández-Cruz, Germán; Rangel-Colmenero, Blanca R.; Valencia-Falcón, Teresita; Yáñez-Sepúlveda, Rodrigo; Martínez-Rodríguez, Alejandro
    The aim of this cross-sectional study was to compare dietary intake to published recommendations and to analyze the potential relationship between body composition and dietary intake in collegiate athletes. Eighteen healthy male middle- and longdistance runners (age 20.11 ± 2.72 y; height, 174.7 ± 6.1 cm; body mass, 64.0 ± 7.7 kg), were recruited from a Mexican university track and field team at the beginning of the general preparation phase for national competitions. Participants completed three 24-hour dietary recalls, which were used to estimate dietary intake. Body composition was measured by Dual-energy X-ray absorptiometry (DXA). Athletes displayed high body fat values. Protein intake was significantly higher than published recommendations. Iron, zinc, sodium, and vitamin C intake were significantly higher than recommended values, while potassium and calcium intake were below established recommendations. No significant correlations between body composition variables (i.e body fat, lean body mass, bone mineral content) and dietary intake (i.e energy, macronutrients and selected vitamins and minerals) could be found. These findings suggest that coaches and practitioners should pay close attention to dietary intake and body composition of endurance athletes starting general preparation for competition. Future studies on changes of dietary intake and body composition during off-season and competitive phase, which also track physical activity, are warranted. © 2023, Universidad de la Frontera. All rights reserved.
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    Effect of Phlebodium Decumanum on muscle damage, inflammation and cortisol during a precompetitive mesocycle in a National Volleyball Team
    (Federacion Espanola de Docentes de Educacion Fisica, 2023) García Verazaluce, Juan José; Guisado-Barrilao, Rafael; Figueroa, Elizabeth Llera; Hernández-Cruz, Germán; Rangel-Colmenero, Blanca R.; Ocaña-Peinado, Francisco M.; Hoyos-Flores, José Raúl; Jerez-Mayorga, Daniel; Guisado-Requena, Isabel María
    The severe training load of a competitive mesocycle may not be assimilated correctly by athletes, and can provoke endocrine imbalance, muscle damage and inflammation. Supplementation with antioxidants such as Phlebodium Decumanum (PHL) helps protect against such imbalances. The aim of this study is to analyse the effect of PHL on the fatigue during a precompetitive mesocycle in volleyball players. Twenty-four male volleyball players were divided into two groups (experimental and control). The experimental group was supplemented with three PHL capsules in the morning and three in the afternoon for 20 days. Blood samples were taken before training, at the end of the third week and at the end of the fourth week to evaluate creatine kinase (CK), interleukin 6 (IL-6), tumour necrosis factor-alpha (TNF-α), interleukin 10 (IL-10) and cortisol. The results show the control group, the third Cortisol were significantly increased (p < .05). In the experimental group, however, a significant increase (p < .05) was only observed in the third IL-10 value. In addition, significant differences (p < .05) were observed between the control and experimental groups in the second CK. Furthermore, there were moderate variations (effect size, ES > 0.5; 90% CI) in CK, IL-6 and TNF-α. In conclusion, PHL supplementation during a precompetitive mesocycle by volleyball players protects against the muscle damage, inflammatory modulation and cortisol response caused by fatigue. © 2023 Federacion Espanola de Docentes de Educacion Fisica. All rights reserved.