[Association of physical activities and bone mass density of lumbar spines in men].

Objective: To determine the association of physical activities and bone mineral density of lumbar vertebrae in men.

Methods: A total of 1169 men who sought medical attentions in the West China Hospital of Sichuan University from August, 2003 to December, 2005 because of ostealgia and arthralgia were given a dual-energy X-ray absorptiometry for the L2-L4 bone mineral density. The height, weight, smoking history, and diseases (eg.