Tonon Brigitte A, Bio Nigan Issiako, Agboton Bruno, Gouthon Polycarpe, Nouatin Basile, Agboton Hippolyte
Laboratory Sports Performance, Health and Evaluation, National Institute of Youth, Physical Education and Sport (INJEPS), University of Abomey-Calavi (UAC), 01 P. O. Box 169, Porto-Novo, Benin.
Department of Nephrology, National Teaching Hospital of Cotonou, Faculty of Health Science, University of Abomey-Calavi (UAC), 01 P. O. Box 827, Cotonou, Benin.
J Sports Med (Hindawi Publ Corp). 2020 Feb 20;2020:6031763. doi: 10.1155/2020/6031763. eCollection 2020.
The aim of the study was to describe the changes in kidney parameters induced by 10 days of tapering (TP) during a training camp (TC), where the players were preparing for a group competition, in 15 female handball team members of a Division 1 Amateur of Benin, in the sub-Saharan environment. Measures were taken in all the players before and after the intensive training (IT) and tapering (TP) phases in an intervention study. The estimated glomerular filtration rate (eGFR) with the CKD-EPI 4-level race formula, the fractional excretions of sodium (FeNa) and potassium (FeK), the urine potassium-to-sodium ratio (Na/K urine), and the hemoglobin rate [Hb] were determined for all participants. At the end of IT, eGFR and FeNa increased, respectively, by 22.39% ( < 0.01) and 143.85% ( < 0.01), but the variation of FeK is not significant ( > 0.05). The number of abnormally low eGFR values (<90 mL/min/1.73 m) was reduced from 11 to 5 ( < 0.05). At the end of TP, the eGFR and urine Na-to-K ratio remained on average constant ( > 0.05) but FeNa decreased by 96.32% ( < 0.001) and FeK increased by 144.41% ( < 0.001). The [Hb] rate increased by 9.80% ( < 0.001), and players had inadequate hydration practice. The results suggested that in addition to its already known effects, TP preserves the positive effects of IT on glomerular function in athletes preparing for a competition that presents a major challenge.
本研究旨在描述在撒哈拉以南环境中，贝宁甲级业余女子手球队的15名队员在训练营（TC）期间进行为期10天的减量训练（TP）时肾脏参数的变化，这些队员正在为团体比赛做准备。在一项干预研究中，对所有运动员在强化训练（IT）和减量训练（TP）阶段前后进行了测量。使用CKD-EPI 4级种族公式测定所有参与者的估计肾小球滤过率（eGFR）、钠（FeNa）和钾（FeK）的分数排泄率、尿钾钠比（Na/K尿）以及血红蛋白率[Hb]。在IT结束时，eGFR和FeNa分别增加了22.39%（<0.01）和143.85%（<0.01），但FeK的变化不显著（>0.05）。eGFR值异常低（<90 mL/min/1.73 m²）的人数从11人减少到5人（<0.05）。在TP结束时，eGFR和尿钠钾比平均保持不变（>0.05），但FeNa下降了96.32%（<0.001），FeK增加了144.41%（<0.001）。[Hb]率增加了9.80%（<0.001），且运动员的水合作用实践不足。结果表明，除了其已知的效果外，TP还保留了IT对准备面临重大挑战的比赛的运动员肾小球功能的积极影响。
