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Hydration and nutrition knowledge in adolescent swimmers. Does water intake affect urine hydration markers after swimming?
International Journal of Applied Exercise Physiology Pub Date : 2017-12-23 , DOI: 10.22631/ijaep.v6i4.220
Cesare Altavilla , Maria Soledad Prats Moya , Pablo Caballero Pérez

Little data exists regarding nutritional knowledge and hydration in adolescent swimmers. The aim of this study was to assess the level of nutrition and hydration knowledge and to describe the fluid balance in adolescent swimmers during training. A study was carried out with a cross-sectional descriptive part and a longitudinal part with repeated measurements over five swimming sessions. Eighty-six adolescent swimmers completed a questionnaire to assess their sport nutrition and hydration knowledge. Fluid balance and urine hydration markers were studied during training. Swimmers showed a limited nutrition knowledge (33.26 % ± SD 12.59) and meagre hydration knowledge (28.61 % ± SD 28.59). Females showed lower scores than male swimmers in nutrition and hydration knowledge. Based on urine specific gravity, swimmers started the training close to the euhydrated threshold (1.019 g/mL ± SD 0.008). Although urine specific gravity and urine colour were reduced after the training, there were minimal changes in body mass (-0.12 Kg ± SD 0.31). Sweat loss (2.67 g/min ± SD 3.23) and the net changes in the fluid balance (-0.22 % ± SD 0.59) were low. The poor knowledge in nutrition and hydration encountered in the swimmers can justify the development of a strategy to incorporate nutritional education programmes for this group. Body water deficit from swimming activity seems to be easily replaced with the water intake to maintain hydration. After the training, the urine of swimmers was diluted regardless of their water intake. Dilution of urine did not reflect real hydration state in swimming.

中文翻译:

青少年游泳者的水分和营养知识。游泳后进水会影响尿液水合标志吗?

关于青春期游泳者的营养知识和水分补充的数据很少。这项研究的目的是评估营养和水合知识水平,并描述训练过程中青少年游泳者的体液平衡。对横截面描述部分和纵向部分进行了研究,并在五个游泳环节中进行了重复测量。86名青少年游泳者填写了一份问卷,以评估他们的运动营养和水合作用知识。在训练期间研究了体液平衡和尿液水合标志物。游泳者的营养知识(33.26%±SD 12.59)和水合知识(28.61%±SD 28.59)有限。女性在营养和补水方面的得分低于男性。根据尿比重,游泳者开始训练至接近水合阈值(1.019 g / mL±SD 0.008)。尽管训练后尿液的比重和尿液颜色降低了,但体重的变化却很小(-0.12 Kg±SD 0.31)。出汗量(2.67 g / min±SD 3.23)和液体平衡的净变化(-0.22%±SD 0.59)低。游泳者对营养和水合作用的了解不足,可以证明制定了将营养教育计划纳入该组的策略。游泳活动引起的体内缺水似乎可以很容易地被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳时的真实水合作用状态。尽管训练后尿液的比重和尿液颜色降低了,但体重的变化却很小(-0.12 Kg±SD 0.31)。出汗量(2.67 g / min±SD 3.23)和液体平衡的净变化(-0.22%±SD 0.59)低。游泳者对营养和水合作用的了解不足,可以证明制定了将营养教育计划纳入该组的策略。游泳活动引起的身体缺水似乎很容易被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳中的真实水合状态。尽管训练后尿液的比重和尿液颜色降低了,但体重的变化却很小(-0.12 Kg±SD 0.31)。出汗量(2.67 g / min±SD 3.23)和液体平衡的净变化(-0.22%±SD 0.59)低。游泳者对营养和水合作用的了解不足,可以证明制定了将营养教育计划纳入该组的策略。游泳活动引起的体内缺水似乎可以很容易地被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳时的真实水合作用状态。23),流体平衡的净变化(-0.22%±SD 0.59)低。游泳者对营养和水合作用的了解不足,可以证明制定了将营养教育计划纳入该组的策略。游泳活动引起的身体缺水似乎很容易被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳时的真实水合作用状态。23),流体平衡的净变化(-0.22%±SD 0.59)低。游泳者对营养和水合作用的了解不足,可以证明制定了将营养教育计划纳入该组的策略。游泳活动引起的体内缺水似乎可以很容易地被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳中的真实水合状态。游泳活动引起的体内缺水似乎可以很容易地被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳时的真实水合作用状态。游泳活动引起的体内缺水似乎可以很容易地被摄入的水代替,以保持水分。训练后,游泳者的尿液均被稀释,而与饮水量无关。尿液稀释不能反映游泳时的真实水合作用状态。
更新日期:2017-12-23
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