Physical Activity, Step Counts, and Grip Strength in the Chinese Children and Families Cohort Study

David Berrigan, Ailing Liu, Britni R. Belcher, Ann Chao, Liwen Fang, Charles E. Matthews, Baohua Wang, Linhong Wang, Ning Wang, Yu Wang, Lichen Yang, Martha S. Linet and Nancy Potischman
Additional contact information
David Berrigan: Division of Cancer Control and Population Sciences, National Cancer Institute, Rockville, MD 20850, USA
Ailing Liu: National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Britni R. Belcher: Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
Ann Chao: Center for Global Health, National Cancer Institute, National Institutes of Health, Bethesda, MD 20850, USA
Liwen Fang: National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Charles E. Matthews: Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20850, USA
Baohua Wang: National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Linhong Wang: National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Ning Wang: National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Yu Wang: Chinese Center for Disease Control and Prevention, Beijing 100050, China
Lichen Yang: National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
Martha S. Linet: Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20850, USA
Nancy Potischman: Office of Dietary Supplements, National Institutes of Health, Bethesda, MD 20850, USA

IJERPH, 2020, vol. 17, issue 17, 1-18

Abstract: Objectives: This paper describes the development of a physical activity questionnaire (PAQ) designed for Chinese adolescents and their mothers in urban and rural settings, and reports on results of the PAQ, pedometry, and hand grip dynamometry from the Chinese Children and Families Cohort Study pilot investigation (CFCS). Methods: As part of a pilot investigation to evaluate the feasibility to follow-up and obtain detailed nutrition, dietary, physical activity, and ultraviolet radiation (UVR) data from CFCS participants, data were collected in 2013 for 93 adolescent/mother pairs from a rural ( n = 41) and an urban site ( n = 52) in two provinces. Respondents were asked to wear a pedometer for seven days (Omron HJ-151), use a Takei Digital Grip Strength Dynamometer on (each hand; three trials; two separate days), and complete a 39 item, eight domain PAQ covering the past year. Self-reported physical activity (PA) was linked to metabolic equivalent of task (MET) scores in kcal/kg/hr and used to calculate METs for different domains of PA and intensity categories. Results: Compliance was high (95%) in this measurement protocol administered by health staff during a series of data collection efforts at home and local clinics or health centers. Step counts were highly variable, averaging between 5000 and 10000 per day with somewhat higher step counts in rural adolescent boys. Maximum grip strength (Kgs) was greater in children (Mean = 36.5, SE = 0.8) than mothers (Mean = 28.8, SE = 0.8) and similar in the urban (Mean = 29.6, SE = 0.6) compared to the rural (Mean = 29.6, SE = 0.5) communities overall. Grip strength, step counts, and measures of time spent in different activities or activity intensities were uncorrelated. Conclusion: Device and question-based measurement of PA and strength were readily accepted in these Chinese urban and rural populations. The PAQ on physical activity in the past year produced some plausible population averages, but individual responses suggested recall challenges. If data about specific activities are required, future studies should explore use of standardized survey questions concerning such fewer specific activities or instruments examining shorter time periods such as one, three, or seven day recalls.

Keywords: China; physical activity; grip strength; step count; mother–child dyads; urban–rural (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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