青年体育参与与成年时的骨,肌肉和脂肪之间的关联:爱荷华州骨发育研究
Soyang Kwon1, Fátima Baptista2, Steven M Levy3
1Department of Emergency Medicine, Buehler Center for Health Policy and Economics, Northwestern University, Chicago, IL 60208, USA.
概括
持续的青少年体育参与对男性的骨和肌肉有好处,并减少女性的身体脂肪到成年. 促进年轻人参加体育运动有助于在以后的生活中保持健康的身体组成.
科学领域:
- 运动科学 运动科学
- 人类生物学 人类生物学
- 公共卫生 公共卫生
背景情况:
- 青少年运动参与与各种健康结果有关.
- 关于青少年运动对成年人身体组成的影响的纵向数据有限.
- 了解性别特异性益处对于有针对性的健康干预至关重要.
研究的目的:
- 检查青年体育参与模式与成年人骨,肌肉和脂肪质量之间的关联.
- 调查这些协会中的性别差异.
- 提供证据,支持青少年体育运动的长期健康.
主要方法:
- 在328名参与者中对6至17岁的有组织体育参与进行了纵向评估.
- 双能量X射线吸收计 (DXA) 和计算机断层扫描 (CT) 用于评估23岁时的骨矿物质含量,肌肉质量,脂肪质量和骨硬度.
- 针对性别的回归分析,以评估参与模式 (一致,退学,没有) 和身体组成结果.
主要成果:
- 与非参与者相比,在23岁时,一致的和退学的男性参与者表现出明显更高的骨矿物质含量,瘦体质指数和骨硬度.
- 一致的女性参与者在23岁时表现出明显较低的脂肪质量指数.
- 骨矿物质含量与瘦质量比率在两性一致的参与者中都更高.
结论:
- 青少年参加体育运动对成年人身体构成有性别特异性的好处.
- 男人受益于骨和肌肉发育的增强,而女性则经历了身体脂肪调节的改善.
- 研究结果支持促进青少年体育运动,以终身改善骨和代谢健康.
相关概念视频
Changes in the Appendicular Skeleton with Age
1.8K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
1.8K
Bone Disorders
3.3K
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...
3.3K
Hormones and Bone Tissue
2.5K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
2.5K
Bone Formation by Intramembranous Ossification
5.1K
Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
5.1K
Growth of Cartilage and Bone Tissue
2.9K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
2.9K
Bone Structure
47.8K
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
47.8K


