Abstract:
:Glycerol-induced hyperhydration (GIH) prior to endurance exercise is a strategy that is increasingly used by athletes. Compared with water-induced hyperhydration (WIH), GIH has been shown to reduce diuresis, thereby increasing total body water (TBW). It has never been demonstrated that WIH proved to be more efficient than GIH for increasing TBW. Therefore, we report the case of a trained triathlete in whom WIH, compared with GIH, increased TBW during a 110-min hydration protocol. On two separate days the subject ingested, in a randomized double blind fashion, either 26 ml.kg(-1) body mass (BM) of water or 26 ml.kg(-1) BM of water with 1.2 g glycerol.kg(-1) BM. Compared with GIH, WIH increased TBW by an additional 511 ml. It is proposed that WIH was effective in decreasing urine output and, therefore, in augmenting TBW, because the water ingested during this treatment was integrated into the body fluid pools relatively more slowly than that ingested during GIH. Practically, this finding implies that it could thus be possible for researchers and athletes to find out that on occasion WIH increases TBW more than GIH over a period of hydration of 2 h. :Dayanıklılık egzersizi öncesi gliserol ile oluşturulan hiperhidrasyon (GIH) atletler tarafından kullanımı artan bir stratejidir. Su ile oluşturulan hiperhidrasyon (WIH) ile karşılaştırıldığında GIH'in diürezi azaltarak tplam vücut suyunu (TBW) artırdığı gösterilmiştir. TBW'yi artırmak için WIH'in GIH'den çok daha etkili olduğu gösterilememiştir. Bundan dolayı GIH ile karşılaştırıldığında WIH ile 110 dak hidrasyon protokolü ile artmış TBW antrenmanlı bir triatlet olgusu ile sunulmaktadır. Denek, farklı iki günde rastgele çift kör yöntemi ile 26 ml.kg-1 vücut kitlesi (BM) için su veya 26 ml.kg-1 BM için su ile birlikte 1.2 g glycerol.kg-1 BM aldı.GIH ile karşılaştırıldığında WIH TBW'da 511 ml ek bir artış sağladı. TBW değerlendirildiğinde WIH'in idrar çıkışını azaltmakta etkili olduğu (bu uygulama sırasında alının su vücut sıvı havuzları ile relatif olarak GIH alımından daha yavaş bütünleştiği için) düşünülmektedir. Pratik olarak bu bulgular araştırmacılar ve sporcular için 2 saati aşan bir hidrasyon dönemi için WIH'in GIH'den daha fazla TBW artırdığı olasılığını işaret etmektedir.
journal_name
J Sports Sci Medjournal_title
Journal of sports science & medicineauthors
Goulet E,Labrecque S,Mélançon MO,Royer Dsubject
Has Abstractpub_date
2002-09-01 00:00:00pages
96-102issue
3issn
1303-2968journal_volume
1pub_type
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