7 0 0 0 OA 市販光学式心拍計における心拍数計測信頼性評価
- 著者
- 田河 賢治 木下 賢吾
- 出版者
- 公益社団法人 日本生体医工学会
- 雑誌
- 生体医工学 (ISSN:1347443X)
- 巻号頁・発行日
- vol.55Annual, no.Proc, pp.601-602, 2017-05-03 (Released:2017-09-13)
- 参考文献数
- 2
Motivation: Over the past few years, activity trackers which can measure everyday steps, energy expenditures, and sleeping time are getting popular. Especially these days, some activity trackers use not only accelerometers but also optical heart rate monitors based on photopletysmography. In this study, we evaluated reliability of an optical heart rate activity tracker during running.Method and Results: Several subjects(n=11, all male) ran 1km on a flat road and we analyzed heart rate errors to check if there was a difference between subjects. We found that some subjects had significantly higher Mean Absolute Error than others(highest MAE,20.54±13.64; average MAE, 8.41±6.47), and there was a strong correlation between each subject's MAE and the standard deviation of running speed(Pearson's r=0.87, p<0.001).Conclusion: Optical HR monitors lead to errors when users change their pace of running.
1 0 0 0 OA アンキリンが生体膜に相互作用する構造基盤
- 著者
- 藤原 祐一郎 近藤 寛子 城田 松之 木下 賢吾
- 出版者
- 一般社団法人 日本生物物理学会
- 雑誌
- 生物物理 (ISSN:05824052)
- 巻号頁・発行日
- vol.58, no.3, pp.152-154, 2018 (Released:2018-05-31)
- 参考文献数
- 9
