Cuando el deporte deja de ser salud: dietas, suplementos y sustancias para aumentar el rendimiento y su relación con el riñón

Jiménez, María Dolores Arenas

doi:10.1016/j.nefro.2018.10.004

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…As a result, sports nutrition supplementation is becoming increasingly widespread, with protein supplements being one of the most widely used [4][5][6]. The benefits attributed to them make them very attractive to both professional and amateur athletes [7,8]. The protein in these supplements can be obtained from whey casein, egg, and vegetable protein, with the quality and speed of absorption varying according to their origin [2].…”

Section: Introductionmentioning

confidence: 99%

Proteins and Minerals in Whey Protein Supplements

González-Weller

Paz

Bethencourt-Barbuzano

et al. 2023

Foods

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Sports nutrition supplementation is a widespread practice. Whey protein supplements contribute not only to protein intake but also to dietary exposure to minerals. The labelling present provides the percentage of protein and rarely refers to other components, such as potentially toxic elements such as B, Cu, Mo, Zn, and V that present tolerable upper intake levels set by the European Food Safety Authority. The percentage of protein declared on supplement labelling was checked using the Kjeldahl method, and the levels of Ca, Mg, K, Na, Ba, B, Co, Cu, Cr, Sr, Fe, Li, Mn, Mo, Ni, V, Zn, and Al were analyzed by ICP-OES with the aim of characterizing the protein and mineral contents of isolate and concentrate whey protein supplements representative of the European market. The protein content was 70.9% (18–92.3%) and statistically significant differences were observed between the declared and real protein percentages. Among the minerals, K (4689.10 mg/kg) and Ca (3811.27 mg/kg) presented the highest levels, whereas Co (0.07 mg/kg) and V (0.04 mg/kg) showed the lowest levels. It was concluded that the quality and safety of these products needs to be monitored and regulated. A high degree of non-compliance with labelling claims was detected. Furthermore, the contributions to the recommended and tolerable intakes among regular consumers need to be assessed.

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Section: Introductionmentioning

confidence: 99%

Proteins and Minerals in Whey Protein Supplements

González-Weller

Paz

Bethencourt-Barbuzano

et al. 2023

Foods

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Effects of High-Intensity Training on Complete Blood Count, Iron Metabolism, Lipid Profile, Liver, and Kidney Function Tests of Professional Water Polo Players

Bukvić,

Marijančević,

Čičak

et al. 2024

Diagnostics

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AIM: Our goal was to examine the effect of high-intensity physical activity on changes in the lipid profile, complete blood count (CBC), iron metabolism, and kidney and liver function tests of professional water polo players. METHODS: This study included twenty professional male water polo players. Blood sampling was carried out at the beginning of the season and during periods of high-intensity training. CBCs were determined with a Siemens Advia 2120i hematology analyzer. A Beckman CoulterAU680 chemistry analyzer was used to determine the serum concentrations/activities of lipid profiles and liver and kidney function test analytes. The lipid athlete scores were also determined. RESULTS: The mean corpuscular volume (p = 0.006), platelet count (p = 0.008), and mean platelet volume (p < 0.001) significantly decreased during the high-intensity period, compared with the beginning of the season. The total iron-binding capacity increased (p = 0.001), and ferritin concentrations significantly declined (p = 0.017). The lipid profiles revealed a significant difference between phases, with slight increases in serum total (p = 0.025) and LDL cholesterol (p = 0.002) levels and a decrease in triglyceride concentrations (p = 0.040) in the high-intensity period. During the high-intensity period, the liver and kidney function tests showed a substantial positive effect on lactate dehydrogenase levels (p < 0.001), aspartate aminotransferase (p = 0.028) serum activity, and total protein concentrations (p = 0.033), compared with the beginning of the season. CONCLUSIONS: Water polo players might exhibit a decrease in some CBC parameters, an increase in LDL cholesterol, and a decrease in liver function biomarkers due to intense training at the peak of the competitive season. Kidney function biomarkers remain unchanged.

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Importance of total testosterone in subjects who perform exercises that require great physical effort

Herrera Telenchana,

Tabares Rosero

2024

Salud, Ciencia y Tecnología

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INTRODUCCIÓN: La actividad física, sobre todo aquella de alto impacto genera el aumento de los niveles de testosterona total en el organismo de los deportistas, este incremento proporciona una ganancia de fuerza y crecimiento muscular en un intervalo corto de tiempo.MÉTODOS: Se realizó una revisión narrativa con diferentes estrategias de búsqueda en PubMed, Elsevier, Google Académico, Scielo. Se incluyeron 22 artículos de investigación y revisiones publicados en español e inglés, del año 2019 al 2023.RESULTADOS: De los estudios revisados la mayoría proporcionó información clave sobre la asociación que existe entre los niveles elevados de testosterona total y el crecimiento físico de los deportistas. CONCLUSIÓN: El deporte es esencial para mejorar la calidad de vida del individuo, sin embargo, la obsesión por desarrollar una espectacular musculatura y aumentar su fuerza ha conllevado a los deportistas a consumir esteroides anabólicos androgénicos que elevan peligrosamente los niveles de testosterona, en consecuencia, provoca el daño de órganos y sistemas, pudiendo convertirse en un problema de salud pública, por lo mismo el consumo debe ser controlado medicamente. Los niveles bajos de testosterona en hombres están asociados con disfunción eréctil, en las mujeres con infecciones y sequedad vaginal. Los niveles de testosterona en mujeres trans a pesar de quererlos suprimir por terapia hormonal permanecen elevados confiriéndoles una ventaja adicional sobre el resto del género femenino.

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Cuando el deporte deja de ser salud: dietas, suplementos y sustancias para aumentar el rendimiento y su relación con el riñón

Cited by 3 publications

References 32 publications

Proteins and Minerals in Whey Protein Supplements

Proteins and Minerals in Whey Protein Supplements

Effects of High-Intensity Training on Complete Blood Count, Iron Metabolism, Lipid Profile, Liver, and Kidney Function Tests of Professional Water Polo Players

Importance of total testosterone in subjects who perform exercises that require great physical effort

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