Document Detail


Does lifelong training temper age-related decline in sport performance? Interpreting differences between cross-sectional and longitudinal data.
MedLine Citation:
PMID:  18189166     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the face of remarkable aging trends in North American society, organized sport/physical activity is an important vehicle for promoting physical health, and a domain in which long-term participation might mitigate pessimistic trends for age decline. This investigation examined patterns of age-related decline in performance for 45 Masters runners who rigorously trained continuously for at least a decade. Longitudinal data for age and performance were collected for 200 m, 1500 m, and 10 km events retrospectively across participants' careers. Cross-sectional (CS) data representing normal patterns of aging were derived from online archives. Longitudinal data reflected within-participant training effects whereas CS data did not. Second-order regression analyses were performed separately for each data type and quadratic beta coefficients, indicative of accelerated age decline, were compared for CS and longitudinal samples on a within-event basis. Results showed evidence of accelerated decline with advancing age for both samples, although rates for longitudinal samples were moderated for the 200 m and 1500 m events. Findings for the long-distance event were anomalous. Results provide evidence for moderated age-decline in physical performance measures for individuals who sustain engagement in organized sport for lengthy periods. Discussion focuses on methodological considerations for advancing future research that contrasts CS and longitudinal samples, and the importance of encouraging sport involvement opportunities to aging individuals.
Authors:
Bradley W Young; Patricia L Weir; Janet L Starkes; Nikola Medic
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Experimental aging research     Volume:  34     ISSN:  1096-4657     ISO Abbreviation:  Exp Aging Res     Publication Date:    2008 Jan-Mar
Date Detail:
Created Date:  2008-01-14     Completed Date:  2008-03-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7603335     Medline TA:  Exp Aging Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  27-48     Citation Subset:  IM    
Affiliation:
School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada. byoung@uottawa.ca
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Aged, 80 and over
Aging / physiology*
Athletic Performance / physiology*,  statistics & numerical data
Cross-Sectional Studies
Exercise / physiology*
Female
Geriatric Assessment / methods*,  statistics & numerical data
Health Behavior
Humans
Longitudinal Studies
Male
Middle Aged
North America
Physical Fitness
Regression Analysis
Running / physiology
Track and Field

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


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