Different training patterns and bone mineral density of the femoral shaft in elite, female athletes
Article Abstract:
Exercise is known to increase bone density. However, the specific effects of exercise of various types and intensities upon bone stimulation are unclear. Human studies have indicated that intensive exercise leads to additional increments in density. However, in females, intensive exercise can cause amenorrhea (cessation of menstruation), which is associated with decreased density. To better understand the association between exercise and bone mineral density in women, 67 female athletes were studied and compared with 13 sedentary women who menstruated normally. The athletes were professional or competed on an international level and included 36 rowers, 21 endurance runners, and 10 ballet dancers. Twenty-five were amenorrheic, 27 menstruated normally, and 15 were using oral contraceptives. Exercise capacity was greatest in runners, followed by rowers, and then dancers. Bone density, which was measured in the mid-shaft of the right femur (thigh bone) in all subjects, was significantly greater in runners than rowers, dancers, or sedentary subjects, who had similar values. Bone mineral density did not vary according to the menstrual status of the athletes or the sedentary subjects. Further analysis showed that bone mineral content was not related to age, height, weight, or exercise capacity, but only to sporting group. These results may be helpful in developing exercise protocols to reduce the occurrence of fractures in older women. (Consumer Summary produced by Reliance Medical Information, Inc.)
Publication Name: Annals of the Rheumatic Diseases
Subject: Health
ISSN: 0003-4967
Year: 1991
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Multiple painful bone cysts in a young man
Article Abstract:
A 32-year-old man reported pain in his lower back and pelvis. Imaging studies revealed cysts within the bone. A tumor on his neck was removed and found to contain cysts filled with lymph fluid and lined with blood vessel lining cells. A bone biopsy revealed similar structures. The diagnosis was diffuse cystic angiomatosis. In this rare disease, blood or lymph vessels form large, dilated areas filled with blood or lymph fluid. The prognosis is worse when cysts are found in soft tissues as well as bone. There is no treatment, although spontaneous regression occurs.
Publication Name: Annals of the Rheumatic Diseases
Subject: Health
ISSN: 0003-4967
Year: 1996
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Paget's disease of bone in early adult life
Article Abstract:
The study results on the clinical and biological features of paget's disease of bone in patients under 40 are presented.
Publication Name: Annals of the Rheumatic Diseases
Subject: Health
ISSN: 0003-4967
Year: 2005
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