Number of steps and biomarkers in the elderly

抄録

It is said that walking is good for maintaining health. The target number of steps for elderly people is recommended to be 6,700 steps/day for men and 5,900 steps/day for women. In this study, one male subject was selected and the daily number of steps, body weight, total consumption, maximum and minimum blood pressure, temperature, etc. was recorded for 8 years, and it was examined whether or not continuing to take more than the recommended number of steps would contribute to maintaining health. The experimental results were summarized and the experience (feeling) was also reported. As a result, the subject maintained about 1.5 times the target number of steps for 8 years and spent his life without serious illness. The characteristics of the average number of steps in each month of each year tended to be low in winter and to increase from March to November when there was no snow covering the ground. A strong correlation (r = 0.82) was observed between mean weight and mean systolic blood pressure over the final 5 years (2018-2022). In addition, it can be said that there is a correlation between average temperature and heart rate (r = 0.71). Near the end of the experiment, the subject felt that walking more than 10,000 steps (for 5 days or more) caused fatigue in the legs due to aging. It is necessary to maintain an appropriate number of steps and gradually reduce the number without overdoing the exercise, and to consider the effects on the body, such as the knees. This research is also useful for deriving the tourism activity ability of the elderly.