Document Detail

Short-term plyometric training improves running economy in highly trained middle and long distance runners.
MedLine Citation:
PMID:  17149987     Owner:  NLM     Status:  MEDLINE    
Fifteen highly trained distance runners VO(2)max 71.1 +/- 6.0 ml.min(-1).kg(-1), mean +/- SD) were randomly assigned to a plyometric training (PLY; n = 7) or control (CON; n = 8) group. In addition to their normal training, the PLY group undertook 3 x 30 minutes PLY sessions per week for 9 weeks. Running economy (RE) was assessed during 3 x 4 minute treadmill runs (14, 16, and 18 km.h(-1)), followed by an incremental test to measure VO(2)max. Muscle power characteristics were assessed on a portable, unidirectional ground reaction force plate. Compared with CON, PLY improved RE at 18 km.h(-1) (4.1%, p = 0.02), but not at 14 or 16 km.h(-1). This was accompanied by trends for increased average power during a 5-jump plyometric test (15%, p = 0.11), a shorter time to reach maximal dynamic strength during a strength quality assessment test (14%, p = 0.09), and a lower VO(2)-speed slope (14%, p = 0.12) after 9 weeks of PLY. There were no significant differences in cardiorespiratory measures or VO(2)max as a result of PLY. In a group of highly-trained distance runners, 9 weeks of PLY improved RE, with likely mechanisms residing in the muscle, or alternatively by improving running mechanics.
Philo U Saunders; Richard D Telford; David B Pyne; Esa M Peltola; Ross B Cunningham; Chris J Gore; John A Hawley
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  20     ISSN:  1064-8011     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2006-12-07     Completed Date:  2007-01-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  947-54     Citation Subset:  IM; S    
Department of Physiology, Australian Institute of Sport, Belconnen, Australia.
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MeSH Terms
Analysis of Variance
Lactates / blood
Muscle Strength / physiology*
Oxygen Consumption / physiology*
Physical Education and Training / methods*
Physical Endurance / physiology*
Running / physiology*
Reg. No./Substance:

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