Is It Too Late to Build Bone Density After Menopause? Resistance Training and Impact Exercise

Sims describes this exact protocol with three women in their late 60s. They were frightened because of their bone diagnoses and the common refrain that jumping or heavy weights would fracture them. She first had them build foundational strength with body‑weight movements, then progressively added external loads until they were lifting heavy, and finally introduced plyometric jumps. Over 6–8 months, repeat DEXA scans showed all three moved into normal bone density ranges. This timeline is remarkably short compared to typical medication trials (2–3 years) and challenges the notion that only pharmacological interventions can meaningfully increase bone mass in older women. The underlying principle is Wolff’s Law: bone adapts to the loads under which it is placed. Combined with adequate nutrition, the stimulus of loaded jumping and heavy lifting triggers osteoblast activity and halts osteoclast dominance common in estrogen‑deprived states.

Both speakers reiterate that study after study demonstrates the superiority of mixing resistance and impact over either modality alone. The orthopedic surgeon clarifies that while cycling is an excellent cardiovascular exercise and joint‑sparing for those with knee pain, it does nothing for bone density because it lacks axial loading. Therefore, women who rely on cycling for cardio must intentionally add resistance and impact work. The approach is prophylactic: if started early enough, it can keep women off medications, and even if medications are used, exercise enhances the overall multifactorial strategy. The duration of studies (8–12 months) indicates that improvements are not instantaneous but are clinically meaningful within a year—comparable to gains from some medications but without side effects.

From her professional cycling background, Sims observed DEXA‑verified bone loss in young male riders each season, and women riders had similar declines compounded by low energy availability. Traditional cycling culture prioritizes low body weight and high mileage, both of which actively reduce bone density. By implementing impact loading interventions during the season, she was able to preserve bone health without compromising performance. This counter‑intuitive addition required educating coaches and athletes that a few minutes of jumping won’t make them heavy but will make them less breakable. The approach has now become standard in some teams, aiming to produce robust athletes across the entire competitive lifespan, not just at peak performance.

Sims recounts working with three women in their late 60s. One was osteoporotic, the others osteopenic or low‑normal, and all were afraid of hormone therapy. Instead, they started with body‑weight exercises, progressed to heavy lifting, and ultimately to plyometric jumping. Within 6–8 months, DEXA scans showed normal bone density in all three. She emphasizes the timeline is short compared to the common belief that improvement takes years or is impossible. This experience mirrors published studies where post‑menopausal women improved bone density with 8–12‑month interventions combining resistance and impact training. The takeaway is that age and hormone status are not the limiting factors; mechanical load is. The key is gradual, progressive overload to reduce injury risk while stimulating bone turnover.

Sims recounts her time in professional cycling, where DEXA scans of young male cyclists showed a drop from normal bone density to very low levels just during the season. The same pattern occurred in women, compounded by low energy availability. To address this, she implemented in-season impact loading interventions—e.g., plyometric drills—so athletes could keep riding while protecting their bones from fragility fractures like broken clavicles. The shift required educating coaches to think beyond performance at the 'pointy end' of the sport and consider long-term athlete robustness. This approach is now spreading across cycling teams, from youth to Olympic level, to prevent the cumulative bone damage that previously went unchecked.

The orthopedic surgeon host and Sims agree that studies consistently show the best bone density improvements come from combining resistance training and impact exercise, even in women in their 60s with low bone density. These interventions typically last 8–12 months and produce measurable gains. Crucially, the load must be introduced progressively to avoid injury, but avoiding load entirely leaves bones unprotected. The message is a paradigm shift: rather than shielding fragile bones from all stress, clinicians should guide patients in safely applying that stress. The women in Sims's case study initially believed they could never jump; after supervised progression, they not only jumped but achieved normal bone density, demonstrating the practicality of the approach.