Document Detail

The relation between isometric lifting strength and muscular fitness measures.
MedLine Citation:
PMID:  8112286     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to construct an isometric lift dynamometer and relate isometric lifting strength to dynamic measures of muscular fitness, leg and back strength and muscular power output. Thirty-one male subjects, aged 19-24 years, performed a standing broad jump (for distance), a vertical jump (for flight time), 3 maximal pulls (for peak power) on a rowing ergometer and maximal isometric leg and back extensions on a conventional dynamometer. The results of these tests were correlated with the maximum isometric lifting strength (MILS) obtained on the lift dynamometer using cluster correlation and multiple regression. Significant correlations (p < 0.001) were found between isometric lifting strength and back strength (BS) (r = 0.59), and leg strength (LS) (r = 0.74). A significant correlation was also noted between isometric lifting strength and both standing broad jump (SBJ) (r = 0.58, p < 0.001) and power output (PO) (r = 0.38, (p < 0.05). Multiple regression analysis was used to predict lifting performance from a battery of standard fitness tests. The prediction equation for maximal isometric lifting strength included the terms LS, BS, SBJ and PO (r = 0.80). The relation between isometric lifting strength and other muscular fitness variables suggest that the method used provides an acceptable measure of strength and an indication of the involvement of back and leg musculature in squat lifting.
K Birch; S Sinnerton; T Reilly; A Lees
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ergonomics     Volume:  37     ISSN:  0014-0139     ISO Abbreviation:  Ergonomics     Publication Date:  1994 Jan 
Date Detail:
Created Date:  1994-03-31     Completed Date:  1994-03-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0373220     Medline TA:  Ergonomics     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  87-93     Citation Subset:  IM; S    
Centre for Sport and Exercise Sciences, Liverpool John Moores University, UK.
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MeSH Terms
Ergometry / instrumentation*
Isometric Contraction / physiology*
Muscle Contraction / physiology*
Muscles / physiology
Physical Fitness / physiology*
Weight-Bearing / physiology*

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