https://www.selleckchem.com/products/mitoquinone-mesylate.html Background Daily step count is the most simple measure of physical activity. However, little is known about how daily step count related to time spent in different intensities of physical activity (PA) and sedentary behavior (SB). Methods These cross-sectional data were derived from 450 older Japanese adults (56.7% men, mean age 74.3 years) who were randomly selected from three communities and responded a survey. Daily step count and time spent in moderate-to-vigorous PA (MVPA), light-intensity PA (LPA), and SB were measured using a validated wearable technology (HJA-350IT). Associations of daily step count with time spent in measured behaviors were examined by linear regression models using isometric log-ratio transformations of time-use composition, adjusting for gender, age and residential area. Results Participants averaged 5,412 (SD 2,878) steps/d and accumulated MVPA, LPA, and SB corresponding to 4.0, 34.8, and 61.2% of daily waking time, respectively. Daily step count significantly increased with increase in time spent in MVPA relative to other behaviors (i.e. LPA and SB) and in the ratio of LPA to SB after allowing for MVPA. After stratification, daily step count was significantly related to the ratio of LPA to SB in those taking less then 5,000 steps/d, but not in those taking 5,000-7,499 and ≥7,500 steps/d. Conclusions Higher daily step count can be an indicator of not only larger relative contribution of time spent in MVPA, but also higher ratio between LPA and SB, particularly among those who are the least physically active.Background With increasing age globally, more people may become vulnerable to food choking. We investigated the nationwide epidemiology of food choking deaths in Japan. Methods Using Japanese Vital Statistics death data between 2006 and 2016, we identified food choking deaths based on the 10th revision of the International Statistical Classification of Diseases code W79 (I