PCW Clarity · Strength vs. cardio
Should I lift weights or do cardio after 40?
You're doing more cardio than ever and getting less for it. You're not lazy. Your body's needs may have changed.
The short answer
Both, but most midlife women need more strength work than they're doing. U.S. guidelines call for 150 to 300 minutes a week of moderate aerobic activity, or 75 to 150 minutes of vigorous activity, plus muscle-strengthening activity at least 2 days a week. Older adults should add balance training (Piercy 2018). Cardio is great for your heart, but on its own it does little to hold on to muscle, and muscle starts to decline at the start of the menopause transition (Greendale 2019).
Strength training is also safer than many women were told. In the LIFTMOR trial, 101 postmenopausal women with low bone mass did 8 months of twice-weekly, 30-minute supervised high-intensity resistance and impact training. Compared with a low-intensity home program, they improved bone density at the spine and hip and every measure of physical function (Watson 2018). That trial was supervised and screened, which is the point: good coaching matters. Fitness matters too. Higher cardiorespiratory fitness was linked with lower risk of death in more than 122,000 adults, though that's a link, not proof of cause (Mandsager 2018).
Why does this matter?
- Cardio-only can leave you softer and more tired. As muscle fades in midlife, a cardio-only plan may not protect strength or body shape (Juppi 2025).
- It's never too late to build strength. A 2026 review of resistance training in females across the lifespan found strength and body composition improve at every age (Isenmann 2026).
- Bone is on the line. Bone density drops around the final period (Greendale 2012). Guided loading can help, as LIFTMOR showed (Watson 2018).
- HIIT helps, in the right dose. A meta-analysis found HIIT lowered total and abdominal fat in women, with stronger effects before menopause than after (Dupuit 2020). But hard exercise raises cortisol for a while (Hill 2008), so recovery matters.
How do I build a weekly mix that fits me?
- Check with your clinician first if you have osteoporosis, past fractures, heart symptoms, joint or back problems. Ask whether a bone density test should come first.
- Start with 2 strength days. Whole-body, guided, with good form. That's the guideline minimum (Piercy 2018).
- Keep your aerobic minutes. Walking counts. Moderate activity still counts under the guidelines.
- Add hard intervals only if you're recovering. If sleep is poor and stress is high, fewer hard sessions may serve you better.
- Add balance work. Single-leg stands, step-ups, yoga or tai chi. The guidelines include balance for older adults (Piercy 2018).
- Track how you feel, not just calories burned. Energy, sleep, soreness and strength over weeks tell you whether the plan fits.
Who on my care team handles what?
- Your clinician clears you for exercise and decides on bone density testing.
- A physical therapist handles pain, joint issues, pelvic floor concerns or osteoporosis-safe loading.
- A qualified trainer coaches form and progression, ideally someone who works with women in midlife.
- A registered dietitian makes sure you're fueling and getting enough protein to recover.
Where it breaks: the trainer doesn't know about the bone scan, the PT doesn't know about the HIIT, and nobody asked how you're sleeping. A shared summary keeps the plan safe and sane.
How does the DAITT® Method connect to this?
DAITT® (say it like “date”) is our five-part way to look at a whole life. In wellness, the letters stand for Discipline of the body, Awareness, Intellect, Trust and Treasury. Here's how each one touches this question:
- Discipline of the body: Two strength days, steady aerobic minutes and balance work, built up gradually.
- Awareness: Notice whether you exercise to punish yourself or to care for yourself.
- Intellect: Learn why the mix matters, so you can stop chasing the latest workout trend.
- Trust: Train for the life you want at 80.
- Treasury: A few coached sessions to learn form can be one of the best health purchases you make.
Have you made a DAITT® with your future self? Take the free wellness DAITT® quiz on drpat.co. No forms, and nothing is saved.
What could a balanced week look like?
Illustration
An illustration of how the guidelines can fit a week, not a prescription. Your plan should be set with your clinician and a qualified pro.
| Day | Activity | Counts toward |
|---|---|---|
| Monday | 30-minute guided strength session | Strength day 1 |
| Tuesday | 40-minute brisk walk | Aerobic |
| Wednesday | Yoga or balance work, 20 minutes | Balance |
| Thursday | 30-minute guided strength session | Strength day 2 |
| Friday | 40-minute bike ride or walk | Aerobic |
| Saturday | Short intervals, only if sleeping well | Vigorous aerobic |
| Sunday | Rest or easy walk | Recovery |
That's two strength days, about 150 minutes of aerobic activity counting the weekend, and some balance work: the guideline floor, not a ceiling (Piercy 2018).
What do the experts say, and where does the evidence land?
Dr. Stacy Sims (in Next Level and on Huberman Lab) suggests women in menopause skip much moderate "middle zone" cardio and focus on strength plus short, hard intervals. Dr. Mary Claire Haver also emphasizes strength training. Dr. Peter Attia (in Outlive) stresses VO2 max as a longevity marker. Here's the evidence check: U.S. guidelines still count moderate activity as healthy and helpful (Piercy 2018), and the fitness studies show a link, not proof of cause. We go with the guidelines: moderate movement still counts.
Related questions
Is cardio or strength training better for menopause?
Both matter. U.S. guidelines call for 150 to 300 minutes of moderate aerobic activity a week plus muscle-strengthening at least 2 days a week (Piercy 2018). Many midlife women need more strength work, because muscle declines during the transition (Greendale 2019).
Is lifting heavy weights safe after menopause?
For many women, guided strength training is considered safe. In the LIFTMOR trial, postmenopausal women with low bone mass did supervised high-intensity resistance and impact training twice a week for 8 months and improved bone density and function (Watson 2018). Ask your clinician first if you have osteoporosis or past fractures.
Can too much HIIT backfire in midlife?
HIIT can lower fat mass (Dupuit 2020), but hard exercise raises cortisol temporarily (Hill 2008). If you're short on sleep and high on stress, too many hard sessions may leave you worn out. Balance and recovery matter.
Sources
Peer-reviewed research
- Watson SL et al. (2018). High-Intensity Resistance and Impact Training Improves Bone Mineral Density and Physical Function in Postmenopausal Women With Osteopenia and Osteoporosis: The LIFTMOR Randomized Controlled Trial. J Bone Miner Res, 33:211-220.
- Greendale GA et al. (2019). Changes in body composition and weight during the menopause transition. JCI Insight, 4.
- Juppi HK et al. (2025). Menopause and Body Composition: A Complex Field. Semin Reprod Med, 43:85-105.
- Isenmann E et al. (2026). It's never too late: The impact of resistance training on strength and body composition in females across the lifespan - A systematic review and meta-analysis. J Sci Med Sport, 29:1174-1185.
- Greendale GA et al. (2012). Bone mineral density loss in relation to the final menstrual period in a multiethnic cohort: results from the Study of Women's Health Across the Nation (SWAN). J Bone Miner Res, 27:111-8.
- Dupuit M et al. (2020). Effect of high intensity interval training on body composition in women before and after menopause: a meta-analysis. Exp Physiol, 105:1470-1490.
- Hill EE et al. (2008). Exercise and circulating cortisol levels: the intensity threshold effect. J Endocrinol Invest, 31:587-91.
- Mandsager K et al. (2018). Association of Cardiorespiratory Fitness With Long-term Mortality Among Adults Undergoing Exercise Treadmill Testing. JAMA Netw Open, 1:e183605.
Medical societies and government
- Piercy KL et al. (2018). The Physical Activity Guidelines for Americans. JAMA, 320:2020-2028.
- The North American Menopause Society (now The Menopause Society) (2021). Management of osteoporosis in postmenopausal women: the 2021 position statement of The North American Menopause Society. Menopause, 28:973-997.
- U.S. Department of Health and Human Services (ODPHP). Physical Activity Guidelines for Americans.
Expert voices (commentary, not research)
- Dr. Mary Claire Haver on Huberman Lab. How to Navigate Menopause & Perimenopause for Maximum Health & Vitality (podcast episode, June 2024).
- Dr. Stacy Sims (exercise physiologist). Next Level: Menopause and Beyond (book, Rodale, 2022).
- Dr. Stacy Sims on Huberman Lab. Female-Specific Exercise & Nutrition for Health, Performance & Longevity (podcast episode, July 2024).
- Dr. Peter Attia. Outlive: The Science and Art of Longevity (book, 2023).
What's a good next step?
Start by learning, not buying. Read the short summary of this topic in the Women's Metabolic Clarity library at Pinnacle Coordinated Wellness, take the wellness DAITT® quiz, and bring the questions above to your clinician. If you'd like to see how a coordinated, done-with-you care team works, visit pinnaclecoordinatedwellness.com.
Read the library summaryTake the wellness DAITT® quiz
Questions to ask a licensed clinician
- Is strength training right for me, given my bones and joints?
- Should I have a bone density test before I start?
- What should my weekly mix look like, given my health?
- How much hard exercise is right for me right now?
- Could poor sleep or stress be affecting my recovery?
- Can you refer me to a physical therapist or trainer who works with women in midlife?
Bring these, a short symptom log and your medication list to your next visit.
Who is Dr. Pat Pachciarz®?
Dr. Pat Pachciarz® is the founder of Pinnacle Coordinated Wellness and Founder & CEO of The Pinnacle Group in Aurora, Illinois. He is a Certified Personal Trainer and Certified Nutrition Coach through the National Academy of Sports Medicine. He's the guide and educator here, not a clinician: he teaches how to think about coordination and what to ask your licensed clinicians. More about Dr. Pat Pachciarz®.
More answers
- How much protein do I need to keep muscle after 40?
- Why am I gaining weight in perimenopause when nothing else changed?
- Is cortisol causing my belly fat in menopause?
- Why do I feel so guilty when I can't keep up with my workouts?
- Why can't I sleep through the night in perimenopause?
- Is my brain fog perimenopause, and will it go away?
- Is menopause hormone therapy safe? What changed in 2025?
- What bloodwork should I ask for in perimenopause and menopause?
- Why is my blood sugar creeping up after menopause?
Also see Pinnacle Coordinated Wellness, drpat.co for the wealth and wellness crossover, and drpatclarity.com for family money questions.