Effects of Beverages with Variable Nutrients on Rehydration and Cognitive Function

Abstract

The purpose of the present study was to investigate the effect of carbohydrate-electrolyte solution (CE), lemon tea (LT), and distilled water (DW) on rehydration and cognitive performance after 60 min of moderate exercise. 9 healthy males and 10 eumenorrheic females completed 3 runs in a randomized crossover study design. During the 4-h recovery (REC) period, they consumed either a volume of CE, LT or DW equal to 150% of their body mass (BM) loss during the previous run. The 3 beverages vary in carbohydrate and electrolyte content. A battery of cognitive tests was performed upon arrival, immediately after exercise, and at the end of REC. After the REC, the restoration of BM loss was lower in the DW and LT trials than that in the CE trial in the female participants (CE vs. LT vs. DW: 59.3±2.8 vs. 41.7±5.7 vs. 45.6±2.2%). When compared with the DW, the accuracy of performances during a working memory task in both males and females was higher in the CE and LT trials. The results suggested that during a short-term recovery, both LT and CE show certain beneficial effect in maintaining cognitive performance. However, CE appears to be more effective than LT and DW in rehydrating female participants.

Fluid, energy, and nutrient recovery via ad libitum intake of different commercial beverages and food in female athletes

“…Findings from this study indicate that food plays an important role in mediating fluid recovery following exercise when beverages with basic nutrient profiles are consumed. Although the present investigation did not incorporate a "beverage only" trial for direct comparisons, the available evidence suggests that if food is not consumed, just ~30-56% of water (Maughan and Leiper 1995;Shirreffs and Maughan 1998;Shirreffs et al 2007a;Shirreffs et al 2007b;Merson et al 2008;Wong and Chen 2011;James et al 2014;Stasiule et al 2014;Tai et al 2014;Wong et al 2014;Seery and Jakeman 2016) and ~38-64% of sports drink (Wong et al 2000;Shirreffs et al 2007a;Shirreffs et al 2007b;Watson et al 2008;Evans et al 2009b;James et al 2011;Wong and Chen 2011;James et al 2012;James et al 2013;Clayton et al 2014;Desbrow et al 2014;Tai et al 2014;Wong et al 2014;Li et al 2015;Seery and Jakeman 2016) is typically retained post-ingestion (1.50 L•kg BM lost -1 ). Values indicated in the current investigation are noticeably higher (Water: 70.2±13.6%; Sports Drink: 74.2±18.1%).…”

Effect of protein and carbohydrate solutions on running performance and cognitive function in female recreational runners

“…Previous research examining the role of CES feedings in maintaining cognition during exercise has led to mixed results. Two studies [16,18] and our laboratory [17] have evaluated the effects of CES during prolonged running or team sport exercise and found an improved cognitive performance in CES trial compared with a PLA. Other studies, however, have indicated that there is no benefit of CES to cognitive performance during running and walking exercise compared with the PLA [27, 28], and our results were consistent with these research.…”

Yogurt Drink Effectively Rehydrates Athletes After a Strenuous Exercise Session

“…There are, however, mixed results about the rehydrating potential of these drinks. Tea has been shown not to be more effective than plain water in rehydration and restoring uid balance after exercise [15][16][17][18]. There is insuf cient evidence supporting a superior rehydrating potential of coffee compared with other drinks [19].…”