Bone Mass

Definition

Represents the total weight of the skeleton, approximately comprising 4-6% of the adult body weight, depending on bone density and skeletal volume.

How it works

Bones are living, dynamic tissues that constantly renew themselves through bone resorption and formation. The peak bone mass is reached around 25-30 years of age, after which it gradually declines with age. In women, this decrease accelerates after menopause.

Role

Supporting the body structure, protecting organs, and playing a crucial role in mineral metabolism.

Examples

• An adult with 70 kg and about 3.5 kg of bone mass
• A menopausal woman with reduced bone density
• An adolescent optimizing bone mass through sports

Recommendations

Ensure adequate calcium intake (800-1200 mg/day) and vitamin D, perform regular weight-bearing exercises, and limit alcohol and tobacco consumption which weaken bones. Post-50-year bone density testing (osteodensitometry) can be useful.

Key takeaway

Preserving bone mass from a young age is crucial for preventing osteoporosis and future fractures.

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