Medicine and Health Sciences Commons^™

Lower Extremity Muscle Strength And Risk Of Self-Reported Hip Or Knee Osteoarthritis, Jennifer M. Hootman, Shannon J. Fitzgerald, Carol A. Macera, Steven N. Blair

Faculty Publications

Purpose: The purpose of this study was to investigate the gender-specific longitudinal association between quadriceps strength and self-reported, physician-diagnosed hip or knee osteoarthritis (OA).

Methods: Subjects were 3081 community-dwelling adults who were free of OA, joint symptoms and injuries, completed a maximum treadmill exercise test, had isokinetic knee extension and flexion and isotonic leg press strength measurements taken at baseline and returned at least one written follow-up survey. Multivariate logistic regression was used to estimate odds ratios and 95% confidence intervals.

Results: Women with moderate or high isokinetic quadriceps strength had a significantly reduced risk (55% to 64%) of hip …

Muscular Fitness And All-Cause Mortality: Prospective Observations, Shannon J. Fitzgerald, Carolyn E. Barlow, James B. Kampert, James R. Morrow Jr., Allen W. Jackson, Steven N. Blair

Faculty Publications

Background: The beneficial effects of cardiorespiratory fitness on mortality are well known; however, the relation of muscular fitness, specifically muscular strength and endurance, to mortality risk has not been thoroughly examined. The purpose of the current study is to determine if a dose-response relation exists between muscular fitness and mortality after controlling for factors such as age and cardiorespiratory fitness.

Methods: The study included 9105 men and women, 20-82 years of age, in the Aerobics Center Longitudinal Study who have completed at least one medical examination at the Cooper Clinic in Dallas, TX between 1981 and 1989. The exam included …