A study on the physical aging characteristics of the older people over 70 years old in China.

The mean waist circumference of female aged 75–79 years was the largest, and showed a trend of first increasing and then decreasing, while the mean waist circumference of female aged over 85 years was significantly lower than that of other groups( p < 0.05) (see Figure 2 ). 3.2.1.3 Waist-to-hip ratio There was no obvious aging trend for males and females.

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Result (1) Body morphology: male waist circumference, male waist-to-height ratio and female BMI showed a gradual downward trend with the increase of age; (2) Physiological function: male and female vital capacity showed a decreasing trend with the increase of age, while female pulse pressure showed a gradual upward trend.

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