Document Detail


Short-term effects on lower-body functional power development: weightlifting vs. vertical jump training programs.
MedLine Citation:
PMID:  15903387     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Among sport conditioning coaches, there is considerable discussion regarding the efficiency of training methods that improve lower-body power. Heavy resistance training combined with vertical jump (VJ) training is a well-established training method; however, there is a lack of information about its combination with Olympic weightlifting (WL) exercises. Therefore, the purpose of this study was to compare the short-term effects of heavy resistance training combined with either the VJ or WL program. Thirty-two young men were assigned to 3 groups: WL = 12, VJ = 12, and control = 8. These 32 men participated in an 8-week training study. The WL training program consisted of 3 x 6RM high pull, 4 x 4RM power clean, and 4 x 4RM clean and jerk. The VJ training program consisted of 6 x 4 double-leg hurdle hops, 4 x 4 alternated single-leg hurdle hops, 4 x 4 single-leg hurdle hops, and 4 x 4 40-cm drop jumps. Additionally, both groups performed 4 x 6RM half-squat exercises. Training volume was increased after 4 weeks. Pretesting and posttesting consisted of squat jump (SJ) and countermovement jump (CMJ) tests, 10- and 30-m sprint speeds, an agility test, a half-squat 1RM, and a clean-and-jerk 1RM (only for WL). The WL program significantly increased the 10-m sprint speed (p < 0.05). Both groups, WL and VJ, increased CMJ (p < 0.05), but groups using the WL program increased more than those using the VJ program. On the other hand, the group using the VJ program increased its 1RM half-squat strength more than the WL group (47.8 and 43.7%, respectively). Only the WL group improved in the SJ (9.5%). There were no significant changes in the control group. In conclusion, Olympic WL exercises seemed to produce broader performance improvements than VJ exercises in physically active subjects.
Authors:
Valmor Tricoli; Leonardo Lamas; Roberto Carnevale; Carlos Ugrinowitsch
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  19     ISSN:  1064-8011     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-05-20     Completed Date:  2005-09-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  433-7     Citation Subset:  IM; S    
Affiliation:
Department of Sport, School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil. vtricoli@usp.br
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology
Adult
Humans
Lower Extremity / physiology*
Male
Movement / physiology*
Muscle, Skeletal / physiology*
Physical Education and Training / methods*
Running / physiology
Task Performance and Analysis
Time Factors
Weight Lifting / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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