Osteoporosis affects 10 million Americans; 44 million more have low bone density (osteopenia). Hip fractures in older adults carry 20–30% one-year mortality rates. Exercise — specifically impact loading and progressive resistance training — is the only intervention that builds bone structure and quality, not merely slows loss.
Osteogenic Exercise Principles
Bone responds to mechanical loading through osteoblast stimulation. Key principles: (1) High impact loading produces greater osteogenic response — jumping, hopping, and high-impact aerobics produce greater hip and spine BMD than swimming or cycling; (2) Novel loading patterns prevent accommodation; (3) Progressive resistance training provides direct skeletal loading; (4) Frequency matters more than duration — 50–100 high-impact repetitions, 3–4 days/week is optimal.
Exercise Prescription for Osteoporosis
For patients with established osteoporosis, high-impact activities may carry fracture risk and require physician clearance. Recommended: progressive resistance training targeting spinal extensors, hip abductors, and hip extensors; low-impact weight-bearing activities (brisk walking, elliptical); balance training to reduce fall risk. Activities to avoid: spinal flexion under load (increases vertebral compression fracture risk). For patients recovering from osteoporotic fractures, orthopedic and rehabilitation supplies including walkers, braces, and rehabilitation equipment support safe recovery.
