Central Washington University
Effects of Pre-Exercise Ice Slurry Ingestion on Physiological and Perceptual Measures in Athletes with Spinal Cord Injuries
Abstract
dc:description.abstractAthletes with spinal cord injuries (SCI) have an impaired ability to thermoregulate during exercise, leading to an increased core temperature (T<sub>core</sub>) due to a decrease in sweat response. Elevated core temperature may result in premature onset of fatigue and decreased athletic performance. Therefore, precooling techniques that decrease T<sub>core</sub> before exercise may increase the storage capacity for metabolic heat production, thereby improving exercise performance. The purpose of this study was to investigate the effects of pre-exercise ice slurry ingestion as a precooling method in elite athletes with SCI during a match simulation. Employing a field-based, counterbalanced-design, subjects were administered 6.8 g/kg of room temperature (PLB) or ice slurry (IS) beverage during a 20 minute precooling period, before engaging in a 50 and 60 minute on-court training session on day 1 and 2, respectively. Physiological measures, including T<sub>core</sub> and heart rate, and perceptual measures including gastrointestinal and thermal comfort, and rating of perceived exertion, were monitored throughout precooling (minutes 10, 20) and exercise (minutes 10-60). IS had a large effect on T<sub>core</sub> at the midpoint of exercise on day 1 (minute 30) (ES = 0.73) and 2 (minute 40) (ES = 1.17). Independent samples T-tests revealed significant differences in the perception of thermal comfort between IS and PLB at the midpoint of exercise on both day 1 (minute 30) (<em>P </em> = 0.04) and 2 (minute 40) (<em>P </em> = 0.05), indicating that IS helped subjects to feel cooler during exercise. In conclusion, pre-exercise ice slurry ingestion provides an effective means for delaying an increase in T<sub>core</sub> in athletes with SCI.
Degree
thesis:*- Name thesis:degree_name
- Master of Science (MS)
- Discipline thesis:degree_discipline
- Nutrition
- Year dc:date.available
- 2018
Author and committee
dc:creator, dc:contributor.*- Authors dc:creator
-
- Moore, Alexis
- Pritchett, Kelly
- Pritchett, Robert
- Broad, Elizabeth
- Contributors dc:contributor
-
- Kelly Pritchett
- Robert Pritchett
- Elizabeth Broad
Subjects
dc:subject × 6Rights
- Language dc:language
- English
Identifiers
dc:identifier.*- Repository record dc:identifier
- https://digitalcommons.cwu.edu/etd/955
- OAI identifier oai:identifier
- oai:digitalcommons.cwu.edu:etd-1938