Rachel Cosgrove, CSCS, has been the co-owner of Results Fitness with her husband, Alwyn Cosgrove, for over 20 years. Located in Southern California, it was voted one of the top 10 gyms in the United States by Men’s Health magazine for three years in a row.

Cosgrove earned her bachelor’s degree in physiology, with an emphasis on exercise and health, from the University of California–Santa Barbara. She holds the Certified Strength and Conditioning Specialist (CSCS) credential from the National Strength and Conditioning Association (NSCA) and is certified as a U.S. Olympic weightlifting coach and as a U.S. triathlon coach. She taught the very first USA Obstacle Course Racing Level 1 certification course at the U.S. Olympic Training Center in 2019. In addition to being one of the first people certified by the International Society of Sports Nutrition (ISSN), she has the Nutrition and Lifestyle Coach certification from the prestigious CHEK Institute and Precision Nutrition. She also holds the Russian Kettlebell certification, the Ultimate Sandbag certification, and the Functional Movement Screen certification.

Named IDEA Personal Trainer of the Year (2012), Cosgrove has been a featured expert in a number of magazines, including Women’s Health, Muscle and Fitness Hers, Oxygen, Shape, Men’s Health, More, Real Simple, Women’s World, U.S. News & World Report, and Men’s Fitness. She has also appeared on Fox, WGN, ABC, NBC, and the Dr. Oz show, and she was a spokesperson for Secret deodorant. She is a sought-after presenter at national and international conferences and events. She is the author of The Female Body Breakthrough and the Women’s Health–branded book Drop Two Sizes. She has also served on the advisory board for Women’s Health and [...] and worked as a consultant for Nike.

Part I. Strength Training in Your 40s and Beyond
Chapter 1. Why Strength Train?
Chapter 2. The Cardio Conundrum
Chapter 3. Lifestyle Habits

Part II. Prepare for Positive Change
Chapter 4. Set Powerful Goals
Chapter 5. Eliminate Your Excuses
Chapter 6. Manage Menopause
Chapter 7. Record Your Progress

Part III. The Exercises
Chapter 8. Warm-Up
Chapter 9. Core
Chapter 10. Upper Body
Chapter 11. Lower Body
Chapter 12. Power Development, Finishers, and Metabolic Intervals

Part IV. The Age Strong Program
Chapter 13. Program Principles
Chapter 14. The Base Phase
Chapter 15. The Build Phase
Chapter 16. The Stronger Phase
Chapter 17. The Age Strong Phase
Chapter 18. Metabolic Interval Workouts

Epilogue: Focus and Commit