비타민D 합성을 위한 고령자 주거의 실내외 자연광 노출 시간 = Length of Exposure to Natural Sunlight Indoors and Outdoors in the Living Environment of the Elderly for the Synthesis of Vitamin D

다국어 초록 (Multilingual Abstract)

Vitamin D is usually synthesized when our skin’s epidermis is exposed to natural sunlight during our daily lives. But for those who spend most of their time indoors or use a sunscreen to block ultraviolet rays, there is not enough exposure to natural sunlight, leading to an insufficiency of Vitamin D. Vitamin D helps prevent osteoporosis, enhances one’s immune system and protects the body from various fungi or germs. For elderly who spends most of their time indoors rather than outdoors, faces challenging to absorb Vitamin D, that helps prevent osteoporosis, enhances one’s immune system, and protects the body from various fungi or germs, through natural light Moreover, it is urgent to provide a way for the elderly to synthesize Vitamin D since they experience a rapid deterioration of bone strength and reduction in muscle mass.
Numerous studies have shown that the daily recommended dose of Vitamin D is slightly higher than an average adult. In this paper, based on preceding studies with keywords ‘the elderly’ and ‘Vitamin D’, a mean value was calculated to conclude that the daily recommended dose for Vitamin D is 1000 IU. First, the length of exposure needed to synthesize 1000 IU of Vitamin D outdoors was calculated. Based on the result, the length of exposure needed to synthesize Vitamin D indoors was concluded.
The environment used was a modern residential building located in Seoul with light limited to that only coming through a window to the south. The building had a balcony or an awning and the light was direct sunlight with a body exposure rate of 6-10%. The above results were used to present a guideline for synthesis of Vitamin D using natural sunlight for the elderly.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 이론고찰
• 3. 비타민 D 합성을 위한 실외 노출시간
• 4. 비타민 D 합성을 위한 실내 노출시간
• 5. 결론 및 한계
• 참고문헌