Sports Sciences Commons^™

The Effects Of A Carbohydrate Hydrogel Beverage On Gastrointestinal Symptoms And Running Performance In Comparison To Conventional Carbohydrate Beverages, Nicholas Minichiello

Masters Theses, 2020-current

PURPOSE: The utilization of hydrogel technology allows carbohydrate beverages to form a gel in the acidic environment of the stomach, potentially enhancing gastric emptying. However, few studies have researched the effects of these beverages on gastrointestinal (GI) tolerance and exercise performance; there is minimal data in a variety of exercise conditions and/or beverage ingestion rates. The purpose of the present study was to assess the effects of a 80 g/h of maltodextrin-fructose hydrogel (MF-H) beverage versus conventional carbohydrate sources on GI symptoms and running performance. METHODS: eight distance runners (26 ± 5 y; VO_2max = 65 ± 7 ml/kg/min) …

Effects Of A Carbohydrate Hydrogel Beverage On Endurance Cycling Performance And Gastrointestinal Comfort, Harrison R. Toney

Masters Theses, 2010-2019

PURPOSE: This study examined the effects of a novel maltodextrin-fructose hydrogel (MF-H) on cycling performance and gastrointestinal distress symptoms. METHODS: Nine endurance-trained male cyclists completed three experimental trials consisting of a 98-min varied-intensity cycling protocol followed by a performance test of ten consecutive sprint intervals. In a cross-over design, subjects consumed 250 mL of a treatment beverage every 15 min of cycling. The treatments consisted of 78 g ^. hr^-1 of either a) MF-H, b) maltodextrin-fructose (MF), and c) maltodextrin only (MD) All data were assessed using repeated measures ANOVA’s. RESULTS: There were no differences in average sprint power …

The Effect Of One Night Of Sleep Restriction On Aerobic Exercise Performance, Lindsay Lickers

Senior Honors Projects, 2010-2019

Purpose: Sleep is essential for bodily recovery and is especially important for athletes who will sustain high volumes of muscle damage. Many athletes struggle to get enough sleep, particularly the night prior to competition for a variety of reasons. Long term sleep deprivation has definitively shown negative effects on athletic performance; however, little is known about the effect of a single night of reduced sleep.Methods: Complete data was gathered on nine subjects. Following VO2max testing and a familiarization trial, subjects performed two experimental trials that concluded with simulated 3- km time trials on a cycle ergometer: one …

Macronutrient Supplementation For Endurance Athletes, Jonathan B. Hurst

Senior Honors Projects, 2010-2019

Purpose: The present study addressed two questions related to macronutrient supplementation during endurance exercise. Firstly, the effects of carbohydrate and protein co-ingestion on time trial (TT) performance were compared to carbohydrate alone. Secondly, the effects of isolated protein ingestion on TT performance were compared to a placebo.

Methods: Six trained cyclists (Age: 22 ± 1 years; Height: 167 ± 12 cm; Weight: 60 ± 10 kg; VO_2max: 62 ± 7 ml/kg/min) completed four experimental trials, consisting of constant-load cycling for two hours (55% W_max) immediately followed by a 30-km simulated time trial. During the trials, subjects …