Gerontology & Geriatric Research

Shigeyuki Saitoh

Publications

• Research Article
  Associations between Serum 25-Hydroxyvitamin D Concentration and Physical Performance in Old-Old People Living in a Northern Area of Japan
  Author(s): Atsushi Mizumoto, Hikaru Ihira, Keisuke Yasuda, Keitaro Makino, Yoko Miyabe, Shigeyuki Saitoh, Hirofumi Ohnishi, Takao Suzuki and Taketo FurunaAtsushi Mizumoto, Hikaru Ihira, Keisuke Yasuda, Keitaro Makino, Yoko Miyabe, Shigeyuki Saitoh, Hirofumi Ohnishi, Takao Suzuki and Taketo Furuna
  
  Purpose: The present study aimed to investigate the relationship between serum 25-hydroxyvitamin D [25(OH) D] levels and physical performance, including muscle strength, balance, and gait speed, in older individuals living in a northern area of Japan (latitude approximately 43°north). Subjects: This was a cross-sectional analysis of 273 community-based older individuals (160 women; mean age, 80.0 years), who participated in the “Population-based and Inspiring Potential Activity for Old-old Inhabitants (PIPAOI)”study. Methods: We collected blood samples to determine serum 25(OH) D levels, and we assessed physical performance according to hand grip strength, knee extensor strength, static standing balance, hip walking distance, normal walking speed, and the results of the Timed-Up-and-Go (TUG) test. The other variables were fall experience in the year.. View More»
  DOI: 10.4172/2167-7182.1000135

  Abstract PDF