It depends on the case; there is no single guideline.
Effect by goal · level of evidence
Bone density (osteoporosis and osteopenia)
improvesModeratemeta-analysis (AAA)
Network meta-analysis of trials: exercise increases bone density in people with osteoporosis or osteopenia; weight-bearing/strength and impact modalities (and combined ones) are among the most effective for slowing bone loss.
Bone density (osteoporosis and osteopenia) — improves (Moderate, meta-analysis). Network meta-analysis of trials: exercise increases bone density in people with osteoporosis or osteopenia; weight-bearing/strength and impact modalities (and combined ones) are among the most effective for slowing bone loss. 34725872
Information, not medical advice. Prescription drugs require a doctor.
Information, not medical advice. Scientific evidence reflects the quality of the studies.