ORIGINAL ARTICLE   

Gazzetta Medica Italiana - Archivio per le Scienze Mediche 2021 December;180(12):785-95

DOI: 10.23736/S0393-3660.19.04246-3

Copyright © 2019 EDIZIONI MINERVA MEDICA

lingua: Inglese

Relationship between the evaluation of lifestyle factors of elderly people as measured by the Health Wrist Watch and the health index

Asuka SAWAI ^{1, 2} ✉, Mayu ENDO ², Yuho SUZUKI ², Kaito WATANABE ², Shinya SAWAI ³, Kotaro YAMASUE ⁴, Yuichi BANNAI ⁵, Yuichi TAKEDA ⁶, Tetsuya FUJIKAWA ⁷, Masato OHNO ⁸, Hitoshi FUJII ⁹, Osamu TOCHIKUBO ⁴

¹ Graduate School of Engineering, Kanagawa Institute of Technology, Atsugi, Japan; ² Department of Nutrition and Life Science, Kanagawa Institute of Technology, Atsugi, Japan; ³ Department of Mathematics and Physics, National Defense Academy, Yokosuka, Japan; ⁴ Graduate School of Medicine, Yokohama City University, Yokohama, Japan, 5 Department of Information Media, Kanagawa Institute of Technology, Atsugi, Japan; ⁶ Center for Basic Education and Integrated Learning, Kanagawa Institute of Technology, Atsugi, Japan; ⁷ Center for Health Service Sciences, Yokohama National University, Yokohama, Japan; ⁸ National Institute of Technology, Yonago College, Yonago, Japan; ⁹ Department of Nursing, Mejiro University, Saitama, Japan

BACKGROUND: The Health Wrist Watch (HW; Seiko Epson Co., Ltd., Suwa, Japan) was developed to monitor and evaluate lifestyles as measured by heart rate (HR) variability, acceleration, and calculation of energy expenditure (EE). In this study, we verified the accuracy of the HW by comparing EE in 30 elderly people obtained from the HWwith that from a precise metabolizer (VO 2000^®; Medical Graphics, Milan, Italy). Furthermore, the relationship in 33 elderly people between the risk of metabolic syndrome, results determined by a medical examination, and the lifestyle index measured by the HW were compared.
METHODS: To investigate validity, controlled rest, mental arithmetic, and walking were measured with the HW and VO2000 in elderly men. In the application study, activity times (sleep, mental activity, mental stress, physical activity, exercise) and EE were measured with the HW. The HW data were compared with medical examination results regarding the risk of lifestyle-related disease.
RESULTS: EE measured by the HW correlated significantly with VO2000 measurements for mental and physical activity performed high significant (r=0.89, P<0.01). Deep sleep time as measured by the HW correlated significantly (P<0.05) with body weight (r=-0.44), BMI (-0.41), abdominal circumference (-0.49), T-cho (-0.37), LDL-cho (-0.40), and lower limb muscle strength (0.42). Physical activity times correlated significantly with brachial-ankle pulse wave velocity (-0.51) (P<0.05).
CONCLUSIONS: The HW could easily evaluate EE during mental and physical activity in elderly men. Physical activity times, EE, and sleep times as measured by the HW correlated significantly with the risk of metabolic syndrome and nursing care factors.

KEY WORDS: Stress, psychological; Exercise; Aged; Sleep; Life style; Health status indicators