在儿童和青少年中,时间学年龄和成熟状态与手握强度之间的线性和非线性关系
Marco Cossio-Bolaños1, Rubén Vidal-Espinoza2, Luis Felipe Castelli Correia de Campos3
1Departamento de Ciencias de la Actividad Física, Universidad Católica del Maule, Talca, Chile.
Frontiers in pediatrics
|September 15, 2025
概括
非线性模型比线性模型更好地预测学龄儿童的手握力 (HGS). 成熟状态,而不仅仅是年龄,更准确地描述了HGS变化,为目标干预提供了信息.
科学领域:
- 儿科健康 儿科健康
- 生物识别信息 生物识别信息
- 增长和发展 增长和发展
背景情况:
- 手握力 (HGS) 是儿童整体健康和身体能力的关键指标.
- 对于HGS的预测模型通常依赖于与年龄和成熟度的线性关系,这可能会限制准确性.
- 了解非线性动态对于在儿科患者群体中精确HGS评估至关重要.
研究的目的:
- 评估在6至16岁的学龄儿童中HGS非线性模型的预测准确度.
- 将非线性模型的性能与传统线性模型进行比较.
- 评估时间年龄与成熟状态在HGS预测中的相对重要性.
主要方法:
- 一项涉及1048名学童 (562名男生,482名女生) 的描述性,横截面研究.
- 人类测量测量 (体重,身高,BMI) 和HGS评估使用数字动力计.
- 通过使用摩尔的技术,通过峰值高度速度 (APHV) 的年龄估计的成熟状态.
主要成果:
- 与两性线性模型相比,非线性 (立方体) 模型显示出更高的解释能力和适合HGS.
- 非线性模型的确定系数 (R2) 在年龄和成熟度方面都比线性模型高1-4%.
- 立方模型显示出更好的标准误差估计 (SEE) 和较大的效果大小,表明在捕捉HGS变化方面更高的精度.
结论:
- 立方模型为儿童的年龄,成熟度和HGS之间的关系提供了更准确的匹配.
- 成熟状态比时间年龄更准确地预测HGS波动.
- 建议将非线性模型和成熟度状态纳入设计有效的特定阶段干预措施.
相关概念视频
01:09Changes in the Appendicular Skeleton with Age
3.4K
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...
3.4K
01:27Introduction to Developmental Psychology
1.4K
Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
1.4K
02:20Longitudinal Research
13.1K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.1K
01:27Pharmacodynamics in Geriatric Patients: Effects of Age
188
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
188
01:18Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
238
In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
238
01:10Nature and Nurture
22.2K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
22.2K