Document Detail


Specificity of training modalities on upper-body one repetition maximum performance: free weights vs. hammer strength equipment.
MedLine Citation:
PMID:  20940634     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The purpose of this study was to determine whether a relationship exists between 1-repetition maximum (1RM) performed on hammer strength (HS) machines compared to free weights (FWs) and also to develop regression equations that can accurately predict 1RM when switching from exercise modality to another. Thirty-one trained male subjects performed 1-RM lifts (1RM's) on 3 HS externally loaded machines and 3 comparable FW exercises. Subjects performed 2 1RM tests during each laboratory session, with at least 48-72 hours of recovery between each. One repetition maximum data were used to (a) determine the relationship between 1RM performed on HS vs. FW and (b) to develop regression equations that can accurately predict 1RM's when switching from 1 exercise modality to another. Statistics revealed significant differences (p < 0.05) between 1RM's performed on the HS equipment as compared to its corresponding (FW) exercise. For all exercises, 1RM's were significantly greater on the HS equipment. Regression equations were developed for all exercises, except when predicting the HS shoulder press and the HS preacher curls from their free weight counterparts, where no variables existed that could significantly predict their respective 1RM's. As 1 RMs were significantly greater when using the HS equipment compared to when using FWs, those transitioning from HS exercise to FW exercise should exercise caution.
Authors:
Thomas S Lyons; John R McLester; Scott W Arnett; Matthew J Thoma
Related Documents :
15834764 - Cerebral autoregulation is temporarily disturbed in the early recovery phase after dyna...
15028194 - Isometric pull-push strengths in workspace: 2. analysis of spatial factors.
1487914 - Neuromuscular responses in male and female athletes to two successive strength training...
2932794 - Trunk strength, back muscle endurance and low-back trouble.
23017234 - Acute aerobic exercise in humans increases cytokine expression in cd27- but not cd27+ c...
17073524 - Effects of chronic exercise on feelings of energy and fatigue: a quantitative synthesis.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  24     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2984-8     Citation Subset:  IM    
Affiliation:
Department of Kinesiology, Recreation and Sport, Western Kentucky University, Bowling Green, Kentucky, USA. scott.lyons@wku.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  Physiological and anthropometric correlates of tackling ability in junior elite and subelite rugby l...
Next Document:  Isokinetic strength and joint mobility asymmetries in oarside experienced oarsmen.