Date of Award


Document Type


Degree Name

Doctor of Philosophy (PhD)


A twelve-week study was conducted to determine the effects of weight training and jogging on serum lipids and hormones, cardiovascular function, body composition, and strength. Thirty-three subjects (mean age 45 + 6 years) comprised a weight training group (N = 9), running group (N = 11), and a control group (N = 13). All subjects exercised 3 days per week for 12 weeks. Statistical comparisons were completed by using a 3 x 3 ANOVA with repeated measures on time. Single Degree of Freedom Comparisons were used to examine the specific hypotheses about the differential effects across time among groups. The results showed that significant decreases (p < 0.05) in total cholesterol/HDL-C, per cent body fat, and fat weight. Significant increases (p < 0.05) in high density lipoprotein-cholesterol (HDL-C), lean body weight and cycle time to target heart rate occurred in both groups after training. While both experimental groups realized increases cardiovascular endurance, the greatest change occurred in the running group. Significant differences were also found for estradiol, follicle stimulating hormone, bench press strength, and squat strength for the weight training group. There were no significant changes in testosterone, luteotropic hormone, dihydrotestosterone, or body weight for either experimental group. These data support previous findings that weight training as well as jogging may favorable alter blood lipids, cardiovascular function, and body composition in a relatively short period of time in middle-age sedentary males.