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[RC] Interesting Paper - Ridecamp Guest

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Authors GL Khanna, I Manna
Title   Supplementary effect of carbohydrate-electrolyte drink on sports 
performance, lactate removal & cardiovascular response of athletes
Full source     Indian Journal of Medical Research, 2005, Vol 121, Iss 5, pp 
665-669

Back-ground & objectives: Carbohydrate-electrolyte drink has a significant role 
on energy balance during exercise. The present study was designed to 
investigate the effect of oral carbohydrate-electrolyte supplementation on 
sports performance and cardiovascular status of the national level male 
athletes during exercise and recovery. Methods: A total of 10 male athletes 
(age range: 20-25 yr) were selected. The experiment was performed in laboratory 
(25 degrees C and 60% relative humidity) in two phases; phase 1 - no 
supplementation, and phase 2 - a 5 g per cent carbohydrate-electrolyte drink 
was given orally during exercise and a 12.5 g per cent carbohydrate-electrolyte 
drink during recovery. Subjects performed an exercise test at 70 per cent of 
VO(2)max. Performance time, heart rate during exercise and recovery were noted, 
blood samples were collected during exercise and recovery for the analysis of 
glucose and lactate levels in both the phases. Results: Significant 
improvements were noted in total endurance time, heart rate responses and blood 
lactate during exercise at 70 per cent VO(2)max after the supplementation of 5 
g per cent carbohydrate-electrolyte drink. However, no significant changes were 
noted in blood glucose and peak lactate level irrespective of supplementation 
of carbohydrate-electrolyte drink. Significant improvement in cardiovascular 
responses, blood glucose and lactate removal were noted during recovery 
following a 12.5 g per cent carbohydrate-electrolyte drink. Interpretation & 
conclusion: Carbohydrate-electrolyte drink can increase endurance performance 
as well as enhance lactate removal and thereby delaying the onset of fatigue.


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