老年与青年人体组织层厚度的差异分析

Analysis of the difference in the thickness of human tissue layers between the elderly and the young

为确定不同年龄间组织层厚度是否存在差异以及差异最大的成分和部位,选取20名青年人(19~22岁)和10名老年人(63~83岁)作为受试者,采用超声波测量仪测量他们的皮肤、皮下脂肪、肌肉厚度以及局部部位内脏脂肪厚度。结果发现:老年人的皮肤厚度、皮下脂肪厚度(臀部除外)的平均值均大于青年人,但皮肤厚度无显著差异,皮下脂肪厚度也仅在胸部、髂嵴部和肩胛部存在显著差异。老年人的肌肉厚度均小于青年人,且均存在显著差异。肌肉是老年人和青年人组织厚度差异最大的成分。

In order to determine whether there were differences in tissue layer thickness between ages and which components and sites showed the greatest differences,20 young people(19~22 years old)and 10 elderly people(63~83 years old)were selected as subjects,and ultrasonic measurement was used to measure their skin,subcutaneous fat,and muscle thickness,as well as the thickness of visceral fat in localised areas.It was found that the mean values of skin thickness and subcutaneous fat thickness(except for the buttocks)were greater in the elderly than in the young,but there was no significant difference in skin thickness,and the subcutaneous fat thickness differed only in the chest,iliac crest,and scapula.Muscle thickness was smaller in the elderly than in the young,and there were significant differences in all cases.Muscle was the component with the greatest difference in tissue thickness between the elderly and the young.