Document Detail

Three Weeks of Eccentric Training Combined with Over-speed Exercises Enhances Power and Running Speed Performance Gains in Trained Athletes.
MedLine Citation:
PMID:  22820207     Owner:  NLM     Status:  Publisher    
ABSTRACT: Eccentric and over-speed training modalities are effective in improving components of muscular power. Eccentric training induces specific training adaptations relating to muscular force, whereas over-speed stimuli target the velocity component of power expression. We aimed to compare the effects of traditional or eccentric training with volume-matched training that incorporated over-speed exercises. Twenty team-sport athletes performed four counterbalanced 3-week training blocks consecutively as part of a pre-season training period: 1) traditional resistance training; 2) eccentric-only resistance training; 3) traditional resistance training with over-speed exercises and; 4) eccentric resistance training with over-speed exercises. The over-speed exercises performed were assisted countermovement jumps and downhill running. Improvements in bench press (15.0 ±5.1 kg; ES: 1.52), squat (19.5 ±9.1 kg; ES: 1.12), and peak power in the countermovement jump (447 ±248 W; ES: 0.94) were observed following the 12-week training period. Greater strength increases were observed as a result of the eccentric training modalities (ES: 0.72 - 1.09) with no effect of the over-speed stimuli on these measures (p > 0.05). Eccentric training with over-speed stimuli was more effective than traditional resistance training in increasing peak power in the countermovement jump (94 ±55 W; ES: 0.95). Eccentric training induced no beneficial training response in maximal running speed (p > 0.05); however, the addition of over-speed exercises salvaged this relatively negative effect when compared to eccentric training alone (0.03 ±0.01 s; ES: 1.33). These training results achieved in 3-week training blocks suggest that it is important to target specific aspects of both force and movement velocity to enhance functional measures of power expression.
Christian J Cook; C Martyn Beaven; Liam P Kilduff
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-18
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1United Kingdom Sports Council, London, U.K. 2Hamlyn Centre, Institute of Global Health Innovation, Imperial College, London, U.K. 3Sport, Health and Exercise Science, University of Bath, Bath, U.K. 4Swedish Winter Sports Research Centre, Mittuniversitetet, Östersund, Sweden. 5Health and Sport Portfolio, College of Engineering, Swansea University, Swansea, U.K.
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