高度和体重对脚跟脂肪的影响 微室和宏室层之间在装载和卸载中的运动
Toshihiro Maemichi1,2, Masatomo Matsumoto3,4, Toshiharu Tsutsui1
1Faculty of Sport Sciences, Waseda University, Saitama, Japan.
Foot & ankle orthopaedics
|October 7, 2024
概括
脚部脂肪的表面微室层在卸载过程中没有变化,与更深层的宏室层不同. 增加的身高和体重与更厚的部脂肪层相关,但弹性降低.
科学领域:
- 生物力学 生物力学
- 人体解剖学 解剖学 解剖学
- 身体生理学 身体生理学
背景情况:
- 部脂肪包括表面的微室和深层的宏室.
- 了解它们对负荷的不同反应对于生物力学分析至关重要.
- 人类测量因素 (如身高和体重) 对这些结构的影响尚未完全阐明.
研究的目的:
- 在装载和卸载过程中区分表面和深部部脂肪层的运动模式.
- 研究高度和重量对这些层的机械行为的影响.
主要方法:
- 超声波成像用于测量21名健康成年人在不同负荷下 (0-100%体重) 的部脂肪厚度变化.
- 每20%的装载和卸载周期进行一次测量.
- 分析了表面和深层厚度变化的速度.
主要成果:
- 表面的微室层在卸载过程中没有显著的厚度变化.
- 深层宏室层在卸载过程中表现出显著的变化.
- 增加的高度和重量与负载下两层的厚度增加有关.
- 宏室层厚度变化的速度随着身高和体重的增加而下降.
结论:
- 表面和深部的脚部脂肪层具有不同的功能特征.
- 更高的体重和身高可能会导致脂肪的厚度增加,但弹性降低.
- 这些发现表明,身高和体重较大的个体的承载性能发生了变化.
相关概念视频
Hypodermis
The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
Muscles of the Leg that Move the Foot and Toes
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles.
Cholesterol: Significance and Regulation
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
Obesity
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 adipocytes...
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion
Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...


