Understanding Midlife Fitness Obstacles and Declining Oestrogen
Declining oestrogen reduces the body’s ability to recover from exercise stress. According to Dr Joanna Bruce, muscle mass decreases as age-related skeletal muscle mass, strength, and physical function loss known as sarcopenia begins in your 30s and accelerates. Sleep disruption further impairs recovery, while rising cortisol sensitivity means high-intensity training feels more depleting.
“The body is no longer in the same hormonal environment, so the same inputs produce different outputs,” Dr Bruce says. Anna-Klara Skarp adds that many women under-eat while trying to manage their weight, leaving them without enough fuel to benefit from their training.
Why Strength Training Replaces Traditional Cardio Approaches
Lifting weights emerges as the single most important shift for midlife health. Dr Bruce states that strength or resistance training preserves and builds muscle mass, improves insulin sensitivity, supports bone density, and boosts metabolism. Beyond physical adaptations, it provides positive effects for mood and cognitive function.
Walking also plays an essential role in a sustainable routine. Strolling manages cortisol, supports cardiovascular health, and is sustainable long-term.
Managing High-Intensity Exercise and Cortisol Sensitivity
Fast, high-intensity workouts can work against women during perimenopause and menopause. Dr Bruce explains that high-intensity exercise triggers a cortisol response, and the body often struggles to down-regulate cortisol effectively when sleep is poor. Excessive high-intensity interval training without adequate recovery can increase fat storage (especially abdominal), worsen sleep, and increase the risk of injury.
Women do not need to abandon fast-paced sessions entirely. Dr Bruce recommends one to two HIIT sessions per week, balanced with strength training and lower-intensity movement.
Building a Sustainable Seven-Day Training Template
Creating a manageable routine does not require a complex schedule. Dr Bruce outlines a practical weekly template designed for sustainability and recovery:
- Two to three weekly strength training sessions focusing on full-body weights or upper and lower-body sessions.
- One to two moderate weekly cardio sessions, such as cycling, swimming, or brisk walking.
- One weekly HIIT or sport session, if your body feels good.
- Daily low-impact movement, including regular walking and avoiding sitting for long periods.
Rest days are never a waste. Dr Bruce emphasizes that muscles, bones, and the nervous system need time to recover and adapt between harder sessions.
Why high-intensity workouts cause exhaustion during perimenopause
Why do my usual workouts make me feel exhausted during perimenopause?
Declining oestrogen reduces the body’s capacity to recover from exercise stress, while rising cortisol sensitivity and sleep disruption make high-intensity training more depleting, according to Dr Joanna Bruce.
Dr Bruce suggests aiming for two to three weekly strength sessions, combined with moderate cardio, daily low-impact movement, and adequate rest days.
Keep reading