Characteristics of the number of steps in the National Health and Nutrition Survey

Munehiro Matsushita, Susumu Sawada, Takashi Nakagata, Nobuo Nishi, Nagako Okuda, Motohiko Miyachi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

OBJECTIVES: The mean number of steps measured in the National Health and Nutrition Survey is employed for the assessment of physical activity/exercise in "Health Japan 21," and is used to represent the amount of physical activity/exercise that citizens engage in. In this study, we clarified the characteristics of the data on the number of steps, drawn from the National Health and Nutrition Survey.

METHODS: Among the data from the National Health and Nutrition Surveys conducted from 2008 to 2010, data from 21,914 participants on daily number of steps and pedometer attachment were analyzed. On a nutritional intake questionnaire, subjects who responded on the physical status item that they had attached the pedometer all day long were assigned to the "Whole-day-attached" group. Their means, medians, outliers, and frequency distribution were then compared with those in a "Non- whole-day-attached" group.

RESULTS: Subjects assigned to the "Non- whole-day-attached" group accounted for about 8% of cases in 2008, 2009, and 2010. In all three years, the mean number of steps in the "Whole-day-attached" group was 1,076 to 1,472 higher than that in the "Non-whole-day-attached" group. In both groups, outliers were present, and the frequency distribution showed a broad range on the side indicating a higher number of steps. Accordingly, the mean value was higher than the median value by approximately 600 steps.

CONCLUSION: As data on the number of steps measured in the National Health and Nutrition Survey includes individuals not attaching the pedometer all day (approximately 8% of cases), the data are not normally distributed. Therefore, when utilizing these data as representative of citizens' physical activity/exercise, their characteristics should be taken into consideration.

Original languageEnglish
Pages (from-to)686-692
Number of pages7
Journal[Nihon kōshū eisei zasshi] Japanese journal of public health
Volume61
Issue number11
Publication statusPublished - 2014
Externally publishedYes

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Nutrition Surveys
Health Surveys
Exercise
Japan
Health

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Characteristics of the number of steps in the National Health and Nutrition Survey. / Matsushita, Munehiro; Sawada, Susumu; Nakagata, Takashi; Nishi, Nobuo; Okuda, Nagako; Miyachi, Motohiko.

In: [Nihon kōshū eisei zasshi] Japanese journal of public health, Vol. 61, No. 11, 2014, p. 686-692.

Research output: Contribution to journalArticle

Matsushita, Munehiro ; Sawada, Susumu ; Nakagata, Takashi ; Nishi, Nobuo ; Okuda, Nagako ; Miyachi, Motohiko. / Characteristics of the number of steps in the National Health and Nutrition Survey. In: [Nihon kōshū eisei zasshi] Japanese journal of public health. 2014 ; Vol. 61, No. 11. pp. 686-692.
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AU - Nakagata, Takashi

AU - Nishi, Nobuo

AU - Okuda, Nagako

AU - Miyachi, Motohiko

PY - 2014

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