Status : Verified
Personal Name Sitson, Simoun Roy I.
Resource Title The Effects of Programmed Fluid Intake and Drinking Ad Libitum on the Functional Threshold Power, Heart Rate, Perceived Exertion, and Thirst of Leisure Cyclists
Date Issued 24 June 2024
Abstract The aim of this study was to examine the advantages and disadvantages of Programmed fluid intake (PFI) and drinking Ad libitum in terms of functional threshold power (FTP), heart rate (HR), rate of perceived exertion (RPE), and thirst perception (TP) of leisure cyclists. Ten (10) male cyclists (22.5 ± 0.9 years old) with leisure cycling experience (8 ± 5.6 years) have completed four (4) experimental trials. The trials were composed of a familiarization session, sweat rate testing, and two (2) intervention sessions. The training protocol for every session consists of a standardized initial 40-minute ride, followed by a 20-minute free ride, and a 10-minute cooldown. For the PFI session, participants were given water every 10 minutes. The volume was set based on the sweat rate obtained during the second session. For the Ad lib session, the participants were given freedom to drink as much and often as they wish to. Distilled water was used for both sessions. Functional threshold power, heart rate, rate of perceived exertion, and thirst perception were recorded on every session. Urine specific gravity, temperature and humidity, and calorie intake obtained from a 24-hr food recall were also recorded. Results showed a non-significant difference of functional threshold power (p = 0.348) and heart rate (p = 0.428) in both hydration interventions. Significant results were found in the rate of perceived exertion (p = 0.001) and thirst perception (p = 0.034). Both measures were lower in the programmed fluid intake (PFI) session. The results of this study demonstrated that programmed fluid intake improves both perception of exertion and thirst of leisure cyclists in a 1-hour 10-minute sub maximal trial on a hot environment.
Degree Course Bachelor of Sports Science
Language English
Keyword Programmed Fluid Intake; Ad libitum; Cycling; Thirst Perception; Rate of Perceived Exertion; Leisure Cycling
Material Type Thesis/Dissertation
Preliminary Pages
2.66 Mb
Category : F - Regular work, i.e., it has no patentable invention or creation, the author does not wish for personal publication, there is no confidential information.
 
Access Permission : Open Access