Dissertations and Theses @ UNI
Availability
Open Access Thesis
Keywords
Cold--Therapeutic use; Leg--Wounds and injuries; Academic theses;
Abstract
Context: Latent heat of fusion of ice increases heat removal. Thus, a greater ice to water ratio during cooling and following immersion could enhance cooling efficacy. Moreover, a greater ice to water ratio could shorten treatment durations without reducing residual cooling effectiveness. Objective: Compare interface and muscle temperatures during and post-immersion using 2 ice to water ratios and treatment durations. Design: Crossover trial. Setting: Laboratory. Patients or Other Participants: Sixteen active volunteers (age= 21 ± 2yrs, ht= 173.0 ± 12.1cm, mass= 75.0 ± 12.4kg, skinfold= 21.7 ± 4.0mm, and girth= 37.2 ± 3.0cm) in accordance with university IRB. Interventions: During 2 sessions separated by 48 hours both legs were immersed independently in 38 L cylinder coolers filled to the 34 L mark. Independent variables were ice to water Ratio (8: 1 and 1: 1 ), treatment duration [(TxDur) 10-min and 20-min], and Time. Times during immersion were Baseline and End of Treatment (EoTx), whereas post-immersion times were EoTx , 1-, 5-, 10-, 15-, 20-, 25-, and 30-minutes. Main Outcome Measures: Calf interface (IF) and intramuscular [IM (1 cm+½ skinfold thickness)] temperatures to the nearest 0.1 °C. Repeated measures ANOVAs and Tukey-Kramer MC tests were used. Alpha was set a priori at .05. Results: Ratio's only effect was when it interacted with Time (P = .03) on IF during immersion, which caused a 0.6°C greater decrease when using a 8:1 ratio out of a ratio average of 28°C cooling. Thereafter, the interaction of TxDur and Time, or main effects of either, or both, was seen throughout both during and post immersion (range: P < .001 to P < .004). On IF temps during immersion there was a 1 °C between the TxDurs at the EoTx after nearly 29°C of cooling. By the end of the study the IF temps were
Year of Submission
2010
Degree Name
Master of Science
Department
School of Health, Physical Education, and Leisure Services
First Advisor
Jody B. Brucker
Second Advisor
Todd A. Evans
Third Advisor
Julianna Shappy
Date Original
2010
Object Description
1 PDF file (97 leaves)
Copyright
©2010 Christopher James Nelson
Language
en
File Format
application/pdf
Recommended Citation
Nelson, Christopher James, "The Effect of Crushed Ice Quantity on Interface and Intramuscular Temperatures During and Following Immersion" (2010). Dissertations and Theses @ UNI. 1855.
https://scholarworks.uni.edu/etd/1855
Comments
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