Date of Award

Summer 1997

Document Type

Thesis

Degree Name

Master of Science in Education (MSEd)

Department

Human Movement Sciences

Program/Concentration

Exercise Science and Wellness

Committee Director

Elizabeth A. Dowling

Committee Member

J. David Branch

Committee Member

Brian C. Leutholtz

Committee Member

David P. Swain

Call Number for Print

Special Collections LD4331.E44 P73

Abstract

This study examined the effects of 14 weeks of resistance training on lipid levels and body fat percentage (BF%) in healthy, sedentary premenopausal women. Twenty four women (mean ± SD: age:27 ± 6.5 yrs, weight 66.2 ± 12.3 kg) participated in the study. The subjects were randomly placed in either a control (CON) group or in an exercise (EXER) group. The EXER group participated in a supervised 45-50 minute resistance training session (85% of 1-RM) for 14 weeks, 3 times per week on non-consecutive days. The CON group did not participate in any physical activity. The subjects were asked not to alter their diet. The training program resulted in significant increases (p < 0.05) in strength as evidenced by 1-RM strength tests. There was a 9% decrease in the concentration of total cholesterol (T-CHOL) (179.8 ± 11.8 vs 163.7 ± 8.7 mg·dl-1, p < 0.05), 14% decrease in the concentration of low density lipoprotein cholesterol (LDL-C) (114. 9 ± 11.1 vs 98.8 ± 7.7 mg·dl-1, p < 0.05), 14.3% decrease in total cholesterol to high density lipoprotein cholesterol (T-CHOL/HDL-C) ratio (4.2 ± 0.4 vs 3.6 ± 0.4, p < 0.05), and a 5% reduction (i.e. 1.4% in body fat units) in percent body fat (BF%) (27.9 ± 2.1 % vs 26.5 ± 2.2%, p < 0.05) and a strong trend towards a significant decrease in LDL-C/HDL-C ratio (p=0.057) in the EXER group compared to their baseline values. The concentration of plasma triglycerides (TG) and HDL-C were not altered by training. These changes were observed despite no change in body weight. No changes were observed in any of the measured variables in the control group. These findings indicate that resistance training has a favorable effect on lipid profile and body composition in healthy, sedentary premenopausal women.

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DOI

10.25777/q6hg-7498

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