Document Detail


Upper respiratory tract infection is reduced in physically fit and active adults.
MedLine Citation:
PMID:  21041243     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective Limited data imply an inverse relationship between physical activity or fitness level and the rates of upper respiratory tract infection (URTI). The purpose of this study was to monitor URTI symptoms and severity in a heterogeneous group of community adults and contrast across tertiles of physical activity and fitness levels while adjusting for potential confounders. Design A group of 1002 adults (ages 18-85 years, 60% female, 40% male) were followed for 12 weeks during the winter and fall seasons while monitoring URTI symptoms and severity using the Wisconsin Upper Respiratory Symptom Survey. Subjects reported frequency of aerobic activity, and rated their physical fitness level using a 10-point Likert scale. A general linear model, with adjustment for seven confounders, was used to examine the effect of exercise frequency and fitness level on the number of days with URTI and severity of symptoms. Results The number of days with URTI during the 12-week period was significantly reduced, 43% in subjects reporting ≥5 days/week aerobic exercise compared to those who were largely sedentary (≤1 day/week) and 46% when comparing subjects in the high versus low fitness tertile. URTI severity and symptomatology were also reduced 32% to 41% between high and low aerobic activity and physical fitness tertiles. Conclusions Perceived physical fitness and frequency of aerobic exercise are important correlates of reduced days with URTI and severity of symptoms during the winter and fall common cold seasons.
Authors:
David C Nieman; Dru A Henson; Melanie D Austin; Wei Sha
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Publication Detail:
Type:  Journal Article     Date:  2010-11-01
Journal Detail:
Title:  British journal of sports medicine     Volume:  45     ISSN:  1473-0480     ISO Abbreviation:  Br J Sports Med     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0432520     Medline TA:  Br J Sports Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  987-92     Citation Subset:  IM    
Affiliation:
Director, Human Performance Laboratory, North Carolina Research Campus, Plants for Human Health Institute, 600 Laureate Way, Kannapolis, NC 28081, USA. niemandc@appstate.edu.
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