| Group training in adolescent runners: influence on &OV0312;o2max and 5-km race performance. | |
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MedLine Citation:
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PMID: 21912347 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Loprinzi, PD, Cardinal, BJ, Karp, JR, and Brodowicz, GR. Group training in adolescent runners: influence on &OV0312;o2max and 5-km race performance. J Strength Cond Res 25(X): 000-000, 2011-The aims of this study were to (a) examine the interrelationships between training intensity, &OV0312;o2max, and race performance in adolescent crosscountry runners and (b) determine if adolescent runners participating in a group crosscountry training program differ in the amount of training time at various intensities. In this study, 7 adolescent runners performed a laboratory-based &OV0312;o2max test before and after a 9-week high-school crosscountry season. Heart rate (HR) and ventilatory threshold (VT) were used to identify 3 training zones for each runner based on the HR at ventilator threshold (HRVT): zone 1: >15 b·min below HRVT; zone 2: between zone 1 and HRVT; zone 3: >HRVT. During each training session throughout the season, HR was measured to quantify the amount of training time in each of these 3 intensity zones. Results showed that the time in each of the 3 zones was not significantly associated with 5-km race performance. Zone 3 training time was positively associated with postseason &OV0312;o2max (r = 0.73, p = 0.06); &OV0312;o2max was significantly inversely associated with 5-km race performance (r = -0.77, p = 0.04). Each week, the amount of training time at, above, and below the VT was significantly different among the participants even though the training prescription for the group was standardized. The results suggest that, among adolescent crosscountry runners, training above the VT may be important in increasing &OV0312;o2max and ultimately, race performance. Given the between-participant differences in the amount of training time in each HR zone, coaches should apply individual, rather than group, training programs. |
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Authors:
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Paul D Loprinzi; Bradley J Cardinal; Jason R Karp; Gary R Brodowicz |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-07 |
Journal Detail:
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Title: Journal of strength and conditioning research / National Strength & Conditioning Association Volume: - ISSN: 1533-4287 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9415084 Medline TA: J Strength Cond Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1Bellarmine University, Department of Exercise Science, Louisville, Kentucky; 2Department of Nutrition and Exercise Sciences, Oregon State University, Corvallis, Oregon; 3RunCoachJason.com, REVO2LT Running Team, San Diego, California; and 4Exercise Physiology Laboratory, School of Community Health, Portland State University, Portland, Oregon. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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