Strength training that changes with you.
Your body at 45 or 55 is not the same as it was in your twenties—and that is not a flaw. Heidi specializes in intelligent, hormone-aware strength training, joint-friendly programming, and metabolic nutrition that counters muscle loss, fatigue, and burnout.
Intelligent strength for perimenopause and beyond.
Certified by the Menstrual Cycle Health, Nutrition & Fitness Academy with over two decades of coaching real women.
Hormone-Aware Adaptability
Perimenopause and menopause bring shifting estrogen and progesterone ratios, impacting insulin sensitivity, sleep, and recovery. We adjust training volume and intensity so your body rebuilds rather than burns out.
Protecting Muscle & Bone Density
After age 40, women naturally lose 3–8% of muscle mass per decade (sarcopenia) and face accelerated bone loss. Progressive heavy resistance training is the single most effective countermeasure.
Joint Longevity & Mobility
Joint aches shouldn’t stop you from moving. We emphasize rotator cuff stabilization, hip opener flows, knee alignment, and pelvic floor integration so you can lift with confidence.
Smarter Protein & Metabolic Health
Women over 40 require higher leucine and protein thresholds per meal to trigger muscle protein synthesis. We make hitting your protein targets simple, satisfying, and stress-free.
Cortisol-Conscious Workouts
Endless high-intensity cardio spikes stress hormones, impairs thyroid function, and increases belly fat storage. We replace exhaustive cardio with focused strength and restorative walking.
A Welcoming, Non-Judgmental Space
Tired of fitness influencers telling you to eat 1,200 calories? Heidi offers honest, evidence-based guidance in an environment where you can speak openly about your body.
Functional Medicine & Women’s Health
Heidi regularly collaborates with local medical providers including Dr. Rob Downey, MD, IFMCP (Seaworthy Functional Medicine, a department of South Peninsula Hospital) to align exercise physiology with clinical wellness.
Ready for a different approach to fitness?
Start with a conversation. We’ll talk about where you are, what you want to accomplish, and whether Changing Tides is the right fit for your life.
No pushy sales tactics • No crash diets • Strictly individualized coaching