Abstract
Serum zinc was measured in 20 adolescent gymnasts (9 boys, 11 girls, age 12–15 yr) explored for detecting possible adverse effects of intense training on pubertal maturation and growth. They had low serum zinc (0.599±0.026 mg/L) when compared to matched control sedentary children (n=118 mean 0.81±0.014p<0.001). Girls had lower zinc than boys (0.557±0.023 vs 0.651±0.044p<0.001). Zinc was correlated to isometric adductor strength (r=0.468p<0.05). Children with serum zinc <0.6 mg/L had lower insulin-like growth factor binding protein 3 than others (2.326±0.264 vs 2.699±0.12p<0.01). Thus, zinc is lowered in trained adolescent gymnasts and even lower in females. This reduction could play some role in abnormalities of puberty, growth, or muscular performance.
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Brun, JF., Dieu-Cambrezy, C., Charpiat, A. et al. Serum zinc in highly trained adolescent gymnasts. Biol Trace Elem Res 47, 273–278 (1995). https://doi.org/10.1007/BF02790127
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DOI: https://doi.org/10.1007/BF02790127