Effect of a herbal drink on cycling endurance performance
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Date
2001
Authors
Singh, Rabindarjeet
Sirisinghe, Roland G.
Journal Title
Journal ISSN
Volume Title
Publisher
Kampus Kesihatan, Universiti Sains Malaysia
Abstract
The aim of this study was to evaluate the effects of 'AgroMas®' herbal drink on physiological responses and endurance performance during cycling exercise. Nine cyclists cycled on a cycle ergometer at 71.9±0.7% of the maximal oxygen consumption (V02max) until exhaustion in a room maintained at 23.9±0.2°C and 64.7±1-.5 % relative humidity on two occasions with 1-week interval. The point of exhaustion was defined as the time when subjects could no longer maintain 40 RPM. Subjects ingested either a 'herbal drink'(H) or placebo(P). During each exercise bout, subjects received 3ml.kg-1 body weight of H or P every 20 minutes in a double-blind randomised study design. Blood samples were collected at rest and during exercise, every 20 min, for the determination of substances. Total cycling time to exhaustion was insignificantly (p > 0.05) longer with H (83.7±4.6 min) than P-(B1.5±5.0 min). Changes in body weight, oxygen uptake, plasma volume, core temperature,skin temperature,heart rate,perceived rate of exertion,fluid sensation,respiratory exchange ratio,blood glucose concentration and blood lactate concentration were similar with both H and P treatment. These results showed that the H and P treatment elicited similar exercise performance, thermoregularity and physiological responses during endurance cycling. Thus, it can be concluded that the 'AgroMas®'herbal drink could not enhance cycling endurance performance.
Description
Keywords
Herbal drink , Physiological response , Thermoregularity response , Cycling performance , Cyclist