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Visa fullständig version : Hydrerande effekt av olika drycker


King Grub
2015-12-23, 19:03
Background:

The identification of beverages that promote longer-term fluid retention and maintenance of fluid balance is of real clinical and practical benefit in situations in which free access to fluids is limited or when frequent breaks for urination are not desirable. The postingestion diuretic response is likely to be influenced by several beverage characteristics, including the volume ingested, energy density, electrolyte content, and the presence of diuretic agents.

Objective:

This study investigated the effects of 13 different commonly consumed drinks on urine output and fluid balance when ingested in a euhydrated state, with a view to establishing a beverage hydration index (BHI), i.e., the volume of urine produced after drinking expressed relative to a standard treatment (still water) for each beverage.

Design:

Each subject (n = 72, euhydrated and fasted male subjects) ingested 1 L still water or 1 of 3 other commercially available beverages over a period of 30 min. Urine output was then collected for the subsequent 4 h. The BHI was corrected for the water content of drinks and was calculated as the amount of water retained at 2 h after ingestion relative to that observed after the ingestion of still water.

Results:

Total urine masses (mean ± SD) over 4 h were smaller than the still-water control (1337 ± 330 g) after an oral rehydration solution (ORS) (1038 ± 333 g, P < 0.001), full-fat milk (1052 ± 267 g, P < 0.001), and skimmed milk (1049 ± 334 g, P < 0.001). Cumulative urine output at 4 h after ingestion of cola, diet cola, hot tea, iced tea, coffee, lager, orange juice, sparkling water, and a sports drink were not different from the response to water ingestion. The mean BHI at 2 h was 1.54 ± 0.74 for the ORS, 1.50 ± 0.58 for full-fat milk, and 1.58 ± 0.60 for skimmed milk.

Conclusions:

BHI may be a useful measure to identify the short-term hydration potential of different beverages when ingested in a euhydrated state.

A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index. Am J Clin Nutr December 23, 2015.

http://ajcn.nutrition.org/content/early/2015/12/23/ajcn.115.114769.full.pdf+html

Aping
2015-12-24, 21:58
A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index. Am J Clin Nutr December 23, 2015.

http://ajcn.nutrition.org/content/early/2015/12/23/ajcn.115.114769.full.pdf+html
Intressant!

Tack och God Jul 🎄

Scratch89
2015-12-27, 19:53
Öl! *popcorn*

upperkatt
2015-12-28, 11:12
Spännande! Vad innebär "euhydrated"?

StarkaUlf
2015-12-28, 11:26
Spännande! Vad innebär "euhydrated"?

Normal vätskebalans. Inte uttorkad och inte åt andra hållet heller.

LunaSpice
2015-12-28, 12:11
Normal vätskebalans. Inte uttorkad och inte åt andra hållet heller.

Lagom helt enkelt...

exevision
2015-12-28, 20:21
still-water control (1337 ± 330 g)

;)

Perramja
2015-12-28, 20:51
Öl! *popcorn*

En mkt bra dryck:)

maqan
2015-12-30, 19:27
still-water control (1337 ± 330 g) xD.

King Grub
2016-01-06, 20:11
Urine color (Ucol) as a hydration assessment tool provides practicality, ease of use, and correlates moderately to strongly with urine specific gravity (Usg) and urine osmolality (Uosm). Indicative of daily fluid turnover, along with solute and urochrome excretion, Ucol may also reflect dietary composition. Thus, the purpose of this investigation was to determine the efficacy of Ucol as a hydration status biomarker after nutritional supplementation with beetroot (880 mg), vitamin C (1000 mg), and riboflavin (200 mg). Twenty males (Mean ± SD; age, 21 ± 2 y; body mass, 82.12 ± 15.58 kg; height, 1.77 ± 0.06 m) consumed a standardized breakfast and collected all urine voids on one control day (CON), and one day after consuming a standardized breakfast and a randomized and double-blinded supplement (SUP), over 3 weeks. Participants replicated exercise and diet for one day before CON, and throughout CON and SUP. Ucol, Usg, Uosm, and urine volume were measured in all 24-h samples, and Ucol and Usg were measured in all single samples. Ucol was a significant predictor of single sample Usg after all supplements (p<0.05). Interestingly, 24-h Ucol was not a significant predictor of 24-h Usg and Uosm after riboflavin supplementation (p=0.20, p=0.21). Further, there was a significant difference between CON and SUP 24-h Ucol only after riboflavin supplementation (p<0.05). In conclusion, this investigation suggests that users of the UCC should consider riboflavin supplementation when classifying hydration status and utilize a combination of urinary biomarkers (e.g., Usg and Ucol), both acutely and over 24-h.

Int J Sport Nutr Exerc Metab. 2015 Dec 29. Effects of Three Oral Nutritional Supplements on Human Hydration Indices.