Background: Recent research has suggested supramaximal training can be an effective means of improving endurance performance; however ultra high intensity training (UHIT) has not been examined as a replacement of training volume in a well-trained endurance population. Overuse-related injuries, recurring illness, feelings of staleness, and overtraining that are often associated with high volume training may be avoided with low volume, UHIT training.
Purpose: The purpose of this study was to compare the effects of two weeks of low volume UHIT with two weeks of traditional HV endurance training on lactate threshold (LT), VO2max, steady state efficiency, substrate utilization rates, and 25K time trial performance in well-trained endurance athletes.
Method: Twenty (VO2max ≥ 55 ml/kg/min or 4.5 L/min and minimum training volume of 150 km/week) male cyclists were match-paired into two groups. Four two-day testing sessions were performed at 0, 2, 4, and 6 wks. Day one of testing measured VO2max and lactate threshold. Day two involved a 10-min steady state ride followed by a 25K time trial. All participants were tested, then continued two weeks of their endurance training. Following a retest, the controls (CON) continued with their endurance training while the other half (INT) replaced their endurance training with UHIT, consisting of a 10-min warm-up followed by 8-10 x 30 sec sprints at a workload of 0.075 kg/kg body weight and 4.5 min recovery. Participants completed 6 training sessions over two weeks with two optional low intensity endurance days. Following the second phase all participants re-tested then either continued with (CON) or returned to (INT) their individual endurance-training regimen. A final testing session was conducted two wks later. Total training hours reported for each group are in the table below.
Results: There were no significant differences between the two groups in VO2max or LT (% of VO2max). In addition, cycling efficiency, steady state VO2, steady state heart rate, steady state fat and carbohydrate oxidation, and 25K time trial performance were not different between groups or time points.
Discussion: A short-term reduction in training volume replaced by relatively short sessions of supramaximal training can affectively maintain endurance cycling performance for well-trained cyclists. This type of training may be useful as a means of decreasing the occurrence of negative consequences of long-term, high volume training.
| Identifer | oai:union.ndltd.org:TCU/oai:etd.tcu.edu:etd-05072010-082520 |
| Date | 07 May 2010 |
| Creators | Goulder, Jessica Loree |
| Contributors | Joel B Mitchell, NO SEARCH ENGINE ACCESS |
| Publisher | Texas Christian University |
| Source Sets | Texas Christian University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.tcu.edu/etdfiles/available/etd-05072010-082520/ |
| 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 TCU 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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