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): Mizumoto A, Ihira H, Yasuda K, Makino K, Miyabe Y, Saitoh S, Ohnishi H, Suzuki T and Furuna T Mizumoto A, Ihira H, Yasuda K, Makino K, Miyabe Y, Saitoh S, Ohnishi H, Suzuki T and Furuna T
  
  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