Dalian Skin Disease Hospital, Liaoning, China.
Skin Res Technol. 2010 Nov;16(4):413-21. doi: 10.1111/j.1600-0846.2010.00447.x.
BACKGROUND/OBJECTIVES: One phenomenon of skin aging is loss of cutaneous elasticity. Measurement of cutaneous resonance running time (CRRT) is a method to assess skin elasticity. Yet, information regarding the directional changes of CRRT associated with age, body sites and gender is not yet available. In the present study, we assessed whether changes in CRRT vary with age, body sites and gender in a normal Chinese population.
A Reviscometer was used to measure CRRTs in various directions on the left dorsal hand, the forehead and the left canthus of 806 normal Chinese volunteers, aged 2.5-94 years.
With aging, CRRTs decreased in all directions on the hand, the forehead and the canthus. A more dramatic reduction in CRRTs on the forehead and the canthus was observed in both the 2-8 and the 3-9 o'clock directions. CRRTs in males aged 11-20 years were longer than those in females in some directions on all three body sites. Females aged between 21 years and 40 years showed longer CRRTs than males in some directions of the hand. There were no gender differences in subjects aged 0-10 (except on the canthus) and those over 80 years old.
CRRTs vary with age, body sites and gender.
背景/目的：皮肤老化的一个现象是皮肤弹性丧失。测量皮肤共振运行时间（CRRT）是评估皮肤弹性的一种方法。然而，关于 CRRT 与年龄、身体部位和性别相关的方向性变化的信息尚不清楚。在本研究中，我们评估了正常中国人群中 CRRT 是否随年龄、身体部位和性别而变化。
使用 Reviscometer 在 806 名 2.5-94 岁的正常中国志愿者的左手背、额头和左眼角的各个方向测量 CRRTs。
随着年龄的增长，手部、额头和眼角的 CRRT 在所有方向上均减小。在前额和眼角的 2-8 点和 3-9 点方向上，CRRT 的减少更为明显。在三个身体部位的某些方向上，11-20 岁男性的 CRRT 比女性长。在手部的某些方向上，21-40 岁的女性的 CRRT 比男性长。在 0-10 岁（眼角除外）和 80 岁以上的人群中，男女之间没有差异。
CRRT 随年龄、身体部位和性别而变化。
