The purpose of this thesis was to determine the combined effects of protein, creatine, and conjugated linoleic acid (CLA) supplementation during resistance training. These nutritional supplements are popular during resistance training and we wanted to determine if they would have additive effects for improving body composition and strength. Forty-four participants (32 males, 12 females, mean age 20y) were randomized into three groups to receive: 1) 36 g/d protein (PRO), 2) protein and 9 g/d creatine (PRO/CR), or 3) protein, creatine and 6 g/d CLA (PRO/CR/CLA) for 5 weeks while resistance training on a four-day cycle (three days of resistance training, followed by one day of rest). Measurements at pre- and post-testing included body composition, muscle thickness of the elbow and knee flexors and extensors, and bench and leg press strength. There were time main effects (p<0.01) for strength, and muscle thickness. The PRO/CR/CLA group had significant increases in knee extensor muscle thickness over time compared to the other groups (p<0.05). There were no other differences between groups over time. The combinations of creatine and protein, or creatine, protein and CLA had no effects on body composition. It is concluded that combining protein, creatine, and CLA has minimal effects on muscular strength, muscle thickness, and body composition.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:SSU.etd-11182009-112244 |
| Date | 28 January 2010 |
| Creators | Jantz, Nathan Timothy |
| Contributors | Chilibeck, Phil, Chad, Karen, Drinkwater, Don, Bandy, Brian |
| Publisher | University of Saskatchewan |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://library.usask.ca/theses/available/etd-11182009-112244/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to University of Saskatchewan or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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