INTRODUCTION: Interval training intensities are typically based on percentages of VO2max, heart rate max, or lactate threshold. Interval training based on current race pace has not been evaluated. PURPOSE: This study examined intervals at 95% VO2peak compared to race pace intervals on VO2peak, ventilatory threshold, time trial performance, peak power output, and vertical jump height in recreationally active subjects. METHODS: 34 subjects were randomly assigned to one of four training groups (TM-95%, Cycle-95%, TM-RP, Cycle-RP). Pre- and post- study, all subjects performed a ramped protocol test to exhaustion on a treadmill or electronically braked cycle ergometer for determination of VO2peak and ventilatory threshold and a 2.5 mile treadmill time trial or a 20 kilometer cycle time trial. The training intervention for the 95% groups was 4 x 4 minute intervals at 95% of VO2peak with 2 minute rest periods. The RP groups performed intervals with 2 minute rest periods at speeds 1% faster than their average time trial speed and increased 2% each week. All groups were matched for total work in ml/kg/min. Lab controlled interval sessions were three times per week for eight weeks. A-priori contrasts (1 tailed, dependent) were used to evaluate changes by interval type, mode of training, and gender. A two-way mixed design ANOVAs (time by group) were calculated to measure between group interactions (alpha p < 0.05). Results are presented as mean ± standard error (SE). RESULTS: There were no significant differences between any of the four groups from pre to post in all dependent variables. However within groups, all subjects significantly improved in VO2peak, VT, time trial performance, and vertical jump height. No group was significantly able to increase peak power output. CONCLUSIONS: These results suggest that RP intervals were just as effective at improving VO2peak, ventilatory threshold, and time trial performance as 95%VO2peak intervals independent of gender and exercise mode. These data provide athletes with another option for training. Further research is needed to evaluate race pace intervals efficacy on physiological function, performance, and long term use.
| Identifer | oai:union.ndltd.org:MONTANA/oai:etd.lib.umt.edu:etd-05192008-133615 |
| Date | 07 August 2008 |
| Creators | Young, Laura |
| Contributors | Steven E. Gaskill, Ph.D., Charles Palmer, ED., Arthur H. Woods |
| Publisher | The University of Montana |
| Source Sets | University of Montana Missoula |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.umt.edu/theses/available/etd-05192008-133615/ |
| 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 Montana 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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