The Vitruvian Protocol

System II of XI

Skeletal

Bones & joints

Why it matters

Bone mass peaks around age 30 and then slowly declines, and the decline speeds up after menopause. Osteoporotic fractures, especially of the hip and spine, are a major cause of lost independence and of death in later life. Bone responds to load at any age, so it can still be strengthened.

The protocol

Protocol 1

Load your bones: heavy resistance and impact training, twice a week

Grade B · Moderate evidence
How to do it
  • Twice a week, about 30 minutes per session, on non-consecutive days.
  • Use compound lifts that load the spine and hips: deadlift, back squat and overhead press. Build up to 5 sets of 5 reps at about 80–85% of your one-rep maximum.
  • Add impact: jumping chin-ups with a firm landing, or small drop-jumps, about 3 sets of 5.
  • Start light and get technique coaching, especially if you already have low bone density. In the trial, loads were increased gradually over the first month.
Why it works
Bone remodels in response to strain. Large, rapid loads bend the bone matrix slightly, and bone cells called osteocytes sense this and signal for new bone to be laid down where the stress is greatest.
The evidence
In the LIFTMOR randomized trial, postmenopausal women with low bone mass did 8 months of supervised high-intensity resistance and impact training. They improved lumbar-spine and femoral-neck bone density and physical function compared with a low-intensity control, with high adherence and no fractures1. A Cochrane review of exercise trials in postmenopausal women found small but consistent bone-density benefits, largest with progressive resistance training2. Graded B because the trials measured bone density, a surrogate, rather than fractures.

What to measure

  • DEXA bone density (T-score)≥ −1.0−1.0 to −2.5 is osteopenia; −2.5 or lower is osteoporosis. Screening is recommended for women 65+ and for younger postmenopausal women at higher risk.
  • Vitamin D, 25(OH)D≥ 20 ng/mLThe level the US National Academy of Medicine considers adequate for bone health in nearly everyone3.
  • HeightStableA loss of more than 4 cm (1.5 in) can signal silent vertebral fractures.

Avoid

  • Smoking and more than 2 alcoholic drinks a day. Both are independent fracture risk factors in standard fracture-risk calculators.
  • Chronic under-eating, or very low body weight. Low energy availability suppresses the hormones that build bone.
  • Long-term high-dose glucocorticoids without bone monitoring.

Sources

  1. Watson SL, Weeks BK, Weis LJ, et al. 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. 2018;33(2):211–220. doi.org/10.1002/jbmr.3284
  2. Howe TE, Shea B, Dawson LJ, et al. Exercise for preventing and treating osteoporosis in postmenopausal women. Cochrane Database Syst Rev. 2011;(7):CD000333. doi.org/10.1002/14651858.CD000333.pub2
  3. Institute of Medicine. Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: National Academies Press; 2011. doi.org/10.17226/13050

Educational content, not medical advice. These protocols summarize published evidence for healthy adults; they are not a substitute for care from a clinician who knows your history. Check with one before starting a new exercise program, changing medication, or if you are pregnant or managing a medical condition.