相关实验视频
Updated: Jul 10, 2025

09:36
Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
27.1K
从20岁到80岁以上的人的身体组成,身体功能和饮食模式
L Lengelé1, N A Grande de França, Y Rolland
1Laetitia Lengelé, Gérontopôle of Toulouse, Institute on Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France, lengelelaetitia@gmail.com.
The journal of nutrition, health & aging
|November 24, 2023
概括
饮食模式对不同年龄组和性别的身体组成和身体功能产生重大影响. 含糖,快餐和加工肉类高的不健康饮食与脂肪量增加和力量减少有关,男性更倾向于选择不太健康的食物.
科学领域:
- 老年学是一门学科.
- 营养科学 营养科学
- 人体生理学 人体生理学
背景情况:
- 饮食在与年龄相关的生理变化中起着至关重要的作用.
- 了解饮食模式对于在衰老期间保持身体组成和身体功能至关重要.
研究的目的:
- 在成年人群中识别不同的饮食模式.
- 检查这些饮食模式与身体组成,身体表现和握力之间的关联.
- 分析这些跨不同年龄和性别群体的关系.
主要方法:
- 一项涉及470名参与者的横截面研究 (63%为女性,年龄中位数为56岁).
- 饮食模式 (地中海式,动物产品,糖和快餐) 通过主要成分分析确定.
- 通过DXA (脂肪质量,瘦肉质量) 评估的身体组成.
- 物理性能通过步行速度,椅子上升,短物理性能电池和手握强度来衡量.
- 统计分析使用多变量线性回归,按性别和年龄组分层 (20-49,50-64,65+).
主要成果:
- 年轻人更喜欢"糖和快餐"饮食;中年和老年女性更喜欢"地中海式"饮食.
- 男人从中年时的"糖和快餐"转向了晚年"动物产品".
- 在中年男性中",地中海式"饮食与较低的BMI和身体脂肪有关.
- "动物产品"饮食与中年女性的更高的瘦肉量,年轻男性的干脂肪增加,以及各种力量的结果有关.
- "糖和快餐"饮食与中年男性的高体脂相关,但在老年男性中较低.
结论:
- 富含糖分,快餐和加工肉类的饮食与脂肪量增加和力量减少有关.
- 在所有年龄组中,男性的饮食摄入量不太健康的患病率更高.
- 饮食选择对身体组成和身体功能有着显著的,取决于性别和年龄的影响.
相关概念视频
Bone Disorders
3.6K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.6K
The Effect of Aging on Tissues
2.1K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.1K
Body Water Content and Fluid Compartments
736
Life's biochemical processes occur within aqueous solutions. Solutes are substances that are dissolved within these solutions. The human body contains a variety of solutes, which can differ across various body parts. These can encompass proteins—such as those responsible for clotting and carbohydrate transport—as well as electrolytes. In medicine, an electrolyte is often described as a mineral ion derived from a salt possessing an electric charge. Examples include sodium ions...
736
The Functions of the Skeletal System
3.9K
The most apparent functions of the skeletal system are support, protection, and movement. However, bone tissue also performs several other critical metabolic functions. For one, the bone matrix acts as a reservoir for a number of minerals important to the functioning of the body, especially calcium and phosphorus. These minerals, present in the bone tissue, can be released back into the bloodstream when required. Calcium ions, for example, are essential for muscle contractions and controlling...
3.9K
Aging
56
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
56
Obesity
507
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
507

