The objective of this study is to evaluate a multi-component exercise intervention as an effective therapy to reverse pre-frailty phenotype in females age 65 or older. Participants will be screened for frailty phenotype using the Cardiac Health Study - Frailty Index (CHS); the Clinical Frailty Scale (CFS); and a measure of self-paced normal walking speed. Participants undergo baseline evaluation to determine frailty phenotype and then those females who meet the pre-frailty criteria are randomized into one of two groups; 1) Multi-component exercise program, or 2) A control group who receives a monthly newsletter on tips for successful aging. The exercise group will participate in multi-component exercise program which will emphasize resistance training but also include aerobic, balance and flexibility components 3 times a week at 45 to 60 minutes/session for 16 consecutive weeks. The control group will be asked to maintain normal daily-living habits for the duration of the 16-week study.