Abstract
The strategy for increasing bone mineral density (BMD) has not been established in young men with low BMD. We report on a case of a young man with low BMD who was treated with exercise and nutritional management. A 29-year of old man consulted our clinic because of low BMD. He was instructed to perform maximum jumping exercise (5 times per day, 5 days per week) and intake calcium (800 mg/day), vitamin D (800 IU or 20 μg/day), and vitamin K (300 μg/day) for 6 months. The lumbar spine and femoral neck BMD increased by 2.9% and 4.7%, respectively. These results suggest the effectiveness of maximum jumping exercise and nutritional management (calcium, vitamin D, and vitamin K) on the BMD of the clinically relevant skeletal sites in young men with low BMD.
Highlights
The lifetime risk for osteoporotic fractures is reported to be 40– 50% for females and 12–22% for males [1], which indicates that the incidence of osteoporotic fractures is lower in men than in women
We report on a case of a young man with low bone mineral density (BMD) who was treated with exercise and nutritional management
The lumbar spine and femoral neck BMD increased by 2.9% and 4.7%, respectively (Figure 1)
Summary
The lifetime risk for osteoporotic fractures is reported to be 40– 50% for females and 12–22% for males [1], which indicates that the incidence of osteoporotic fractures is lower in men than in women. The strategies for preventing osteoporosis and its related fractures by physical activity in males are: i) maximizing peak bone mass in children and adolescents, ii) preventing age-related bone loss after 50 years of age, and iii) preventing falls and hip fractures in older men. We report on a case of a young man with low BMD who was treated with exercise and nutritional management. After a medical check-up, a 29-year of old man consulted our sports medicine clinic because of low BMD. His height was 172 cm, body weight was 62 kg, and body mass index was 21.0 kg/m2. Exercise and nutritional intakes were continued for 6 months, and the effect of this intervention was evaluated by measuring the BMD and biochemical markers.
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