| 英文摘要 |
Objectives: This study established normative data for anthropometric indicators, namely waist circumference, hip circumference, and mid-upper arm circumference, and handgrip strength for Taiwanese adults, with the data stratified by age and sex. The study analyzed nationally representative data to evaluate physical condition trends in Taiwan and provide reference values for health monitoring and sarcopenia risk assessment. Methods: Data were derived from the 2013–2016 Nutrition and Health Survey in Taiwan, with the data covering a total of 5,581 adults aged 19 years and older. Waist, hip, and mid-upper-arm circumference and handgrip strength measurements were analyzed by age group and sex. Percentile distributions were used to develop normative values for each indicator. Results: The median waist circumference increased with age up to 65 years in both sexes. In men, the median reached 90 cm by age 55, whereas in women, it exceeded 80 cm from age 45 onward, indicating that more than half of these individuals had abdominal obesity. Male hip circumference peaked between ages 30 and 44 and declined with age, whereas female hip circumference remained stable at 93–94 cm across all age groups, with the 95th percentile being significantly higher than that in men. In men, mid-upper-arm circumference declined after age 45, whereas in women, the values remained stable. Handgrip strength decreased with age for both sexes. Among individuals aged 30–44, the median handgrip strength was 44.5 kg for men and 25.9 kg for women. Furthermore, the median handgrip strength was consistently approximately 10 kg higher in men than in women of the same age and in the same percentile. According to Asian sarcopenia criteria, in this study, more than 15% of the men aged 65–69 and more than 25% of those aged 70 and older had low handgrip strength. For women, more than 25% of those aged 65–69 and more than 50% of those aged 75 and older met the criteria for low handgrip strength. This study confirmed that age-related changes occur in body composition and physical function in Taiwanese adults, which demonstrates the importance of considering age- and sex-specific norms in assessing the nutritional and functional status of older adults. Conclusions: This study established sex- and age-specific normative data for waist, hip, and midupper- arm circumference and handgrip strength for Taiwanese adults. It highlighted the degree of deviation in body size distribution and confirmed the differential effects of aging on various body indicators. The findings suggest that nutritional assessments in older adults should be conducted with reference to appropriate national norms to improve accuracy in health monitoring and chronic disease risk evaluation. (Taiwan J Public Health. 2025;44(3):228-242) |