Document Detail

Modeling developmental changes in strength and aerobic power in children.
MedLine Citation:
PMID:  9480958     Owner:  NLM     Status:  MEDLINE    
The present study examined two contrasting multilevel model structures to describe the developmental (longitudinal) changes in strength and aerobic power in children: 1) an additive polynomial structure and 2) a multiplicative structure with allometric body size components. On the basis of the maximum log-likelihood criterion, the multiplicative "allometric" model was shown to be superior to the additive polynomial model when fitted to the data from two published longitudinal studies and to provide more plausible solutions within and beyond the range of observations. The multilevel regression analysis of study 1 confirmed that aerobic power develops approximately in proportion to body mass, m1/3. The analyses from study 2 identified a significant increase in quadriceps and biceps strength, in proportion to body size, plus an additional contribution from age, centered at about peak height velocity (PHV). The positive "age" term for boys suggested that at PHV the boys were becoming stronger in the quadriceps and biceps in relation to their body size. In contrast, the girls' age term was either negligible (quadriceps) or negative (biceps), indicating that at PHV the girls' strength was developing in proportion to or, in the case of the biceps, was becoming weaker in relation to their body size.
A M Nevill; R L Holder; A Baxter-Jones; J M Round; D A Jones
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  84     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1998 Mar 
Date Detail:
Created Date:  1998-04-09     Completed Date:  1998-04-09     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  963-70     Citation Subset:  IM    
School of Human Sciences, Liverpool John Moores University, Liverpool L3 3AK, United Kingdom.
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MeSH Terms
Aerobiosis / physiology
Data Interpretation, Statistical
Longitudinal Studies
Models, Biological
Muscle Development*
Muscle, Skeletal / growth & development*,  physiology*
Oxygen Consumption / physiology
Regression Analysis
Sex Characteristics

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