Movement
Editorially reviewed
Two Sessions a Week Is a Real Dose
The LIFTMOR trial and what it changed about advice for older women.
By Cortisol Curves Editorial Team· Research brief · summarized from the primary source· 4 min read· Updated August 4, 2026
You've been told to be careful. The research says the opposite is usually the risk.
What the researchers actually did
The LIFTMOR trial randomized postmenopausal women with low bone mass to high-intensity resistance and impact training or to a low-intensity home program, measuring bone mineral density, functional performance and adverse events over eight months.
What they found
- Bone mineral density at the spine and hip improved rather than merely holding steady.
- Functional strength measures improved substantially.
- Adverse events were rare under supervision.
- Two brief sessions per week produced the effect.
What it means for you
For postmenopausal women, strength work is the highest-leverage form of exercise there is — it protects the two things that determine independence later: muscle and bone.
What to do with it this week
- Two sessions, 25 minutes each. Squat, hinge, push, pull, carry.
- Add weight before you add reps.
- If you're new or have a bone diagnosis, start supervised — that's how the trial did it.
- Track what you lifted, not how you looked doing it.
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References
- Watson, S. L., Weeks, B. K., Weis, L. J., Harding, A. T., Horan, S. A., & Beck, B. R. (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. Journal of Bone and Mineral Research, 33(2), 211–220. View source
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