Which forearm is generally preferred for bone density measurements due to having lower BMD?

The non-dominant forearm is generally preferred for bone density measurements because it typically has lower bone mineral density (BMD) compared to the dominant forearm. This is due to the fact that the dominant arm is usually more actively used in daily activities and weight-bearing exercises, which can lead to greater bone density as a result of stimulation from these movements. Consequently, when assessing bone density for diagnostic purposes or risk evaluation for conditions like osteoporosis, it is beneficial to measure the non-dominant forearm, as it may provide a more accurate representation of baseline bone density that is less influenced by habitual loading and physical activity.

This selection helps to standardize measurements, ensuring that variations in bone density related to the use of the dominant arm do not skew the results. Furthermore, assessing the non-dominant forearm is a common practice in clinical settings, allowing for consistent comparisons and monitoring of bone health over time.