The decrease in salivary pH was significantly suppressed after water gargling in Exp. Statistical significance was assessed using multi-factor ANOVA and Turkey-Kramer test (P < 0.05). Paraffin-stimulated whole saliva samples were collected for 3 min before, during and after exercise, and salivary parameters were examined using a hand-held pH meter. 2-A) and 10 who drank 2-fold diluted sports drink (Exp. The same experiment was then conducted on 9 participants who drank 1.5-fold diluted sports drink (Exp. Nineteen participants performed a 30-min bicycle ergometer exercise at 80% of maximal heart rate while consuming a sports drink, followed by gargling with water, or no gargling, immediately after the exercise (Exp. The present study was conducted to investigate the influence of rehydration with diluted sports drink and water gargling on salivary flow, pH and buffering capacity during exercise.
The effect of sports drink and simple glucose is relatively similar. The finding of the present study reveals that pre-exercise ingestion of carbohydrate supplement is helpful in increasing VO 2 max during exercise. Statistically significant differences were found in VO 2 max between group A (F=61.53), group B (F=20.96) and group C (F=66.22). In group C again the VO 2 max was measured after one week of second session by Rockport 1 mile walk test after consuming placebo drink (coloured glucose solution) 20 minutes prior to the test. In group B the VO 2 max of all subjects were measured after one week of first session by Rockport 1 mile walk test after consuming sports drink (Gatorade) 20 minutes prior to the test. In group A they all performed Rockport 1 mile walk test without taking any supplement and then their VO 2 max was measured. All 50 subjects were placed in three groups as same subject design. A total of 50 male individuals participated in the present study with the mean age of 21.97 years (SD= ☑.42) and their mean weight (in lbs) were 138.86 (SD= ☑9.48). The objective of the present study was to determine the effect of pre-exercise consumption of sports drink in enhancing cardio-respiratory fitness. The results indicate that constituents other than water, simple transportable monosaccharides and sodium are important for maximal exercise performance and effective recovery associated with endurance exercise-induced dehydration. In contrast, treatment with Rehydrate, which comprises fructose, glucose polymer, calcium, magnesium, sodium, potassium, amino acids, thiols and vitamins, resulted in a 7.3% increase in treadmill time relative to that of the dehydrated state. Relative to the dehydrated state, a 6.5% decrease in treadmill performance time occurred with Crystal Light, while replenishment with Gatorade, which contains fructose, glucose, sodium and potassium, resulted in a 2.1% decrease.
There were no changes in heart rate or ventilation with all three different replacement drinks. VO2max returned to baseline levels with Rehydrate, while there was only a slight improvement with Gatorade and Crystal Light. Following another 60 min rest and recovery, subjects ingested the same amount of fluid lost in the form of one of three lemon-flavored, randomly assigned commercial drinks, namely Crystal Light (placebo control), Gatorade(R) and Rehydrate Electrolyte Replacement Drink, and then repeated the treadmill test to voluntary exhaustion. After 60 min of rest and recovery at 22 C, subjects performed the same treadmill test to voluntary exhaustion, which resulted in a small reduction in VO2max and a decline in treadmill performance by 3% relative to the baseline results. On each of the three subsequent testing days, the subjects exercised at 70-75% VO2max for 60 min at 29-33 degrees C, resulting in a dehydration weight loss of 1.8-2.1% body weight. Initially, all subjects performed a baseline exercise test using an individualized treadmill protocol structured to induce exhaustion in 7 to 10 min. The study involved a within subject, blinded, crossover, placebo design. The effect of moderate dehydration and consequent fluid replenishment on short-duration maximal treadmill performance was studied in eight healthy, fit (VO2max = 49.7 +/- 8.7 mL kg-1 min-1) males aged 28 +/- 7.5 yrs.
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