アルゼンチン集団サンプルにおけるSTSテストと一般的な臨床指標との相関
Leonardo Intelangelo1, Agustín Peñalba2, Gonzalo Arcuri2
1Centro Universitario de Asistencia, Docencia e Investigación, Universidad del Gran Rosario, 2000, Rosario, Argentina. lintelangelo@ugr.edu.ar.
Scientific reports
|January 19, 2026
まとめ
座る・立つ(STS)能力は中年期にピークを迎え、その後低下する。既存の平均電力方程式は臨床使用に十分であり、ピークレッグプレス力と挙上力発生率が最も強い相関を示した。
科学分野:
- 生物力学
- ヒト運動科学
- 老年医学
背景:
- 座る・立つ(STS)動作は、日常生活に不可欠な基本的な機能的タスクである。
- STS電力の生物力学を理解することは、生涯にわたる身体機能を評価するために不可欠である。
- 既存の電力方程式は、経験的データに基づいて検証と改訂が必要である。
研究 の 目的:
- 多様な年齢層にわたる座る・立つ(STS)能力を評価すること。
- 現在のSTS電力方程式の生物力学的基礎を改訂すること。
- STS電力と他の機能的筋力測定値との相関を調査すること。
主な方法:
- 18歳から90歳までのアルゼンチン人159人を対象とした横断研究。
- 5回繰り返しのSTSテスト、超音波検査、握力、レッグプレステストを含めた。
- データ分析のために回帰分析と統計的仮説検定を適用した。
主要な成果:
- 平均電力と二乗平均平方根(RMS)電力の間の強い相関は、既存の平均電力方程式の臨床的十分性を示している。
- STS電力は中年期(約55歳)頃にピークを迎え、その後低下した。
- ピークレッグプレス力と挙上力発生率は、STS電力との相関が最も強かった。
結論:
- STSの既存の平均電力方程式は、慣性効果が最小限であるため、臨床的に適切である。
- STS電力は中年期に最も高く、年齢とともに減少する。
- STS電力は握力およびレッグプレスパフォーマンスと有意に関連するが、エコーゲン指数とは関連しない。これは、これらの指標を個別に評価することの重要性を強調している。
関連する概念動画
Indicators
59.7K
Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example, phenolphthalein is a colorless substance in any aqueous solution with a hydronium ion concentration greater than 5.0 × 10−9 M (pH < 8.3). In more basic solutions where the hydronium ion concentration is less than 5.0 × 10−9 M (pH > 8.3), it is red or pink. Substances such as phenolphthalein, which can be used to determine the pH of a solution, are...
59.7K
Correlations
35.8K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
35.8K
Sample Proportion and Population Proportion
6.4K
Collecting samples or responses from an entire population takes significant time and effort, so a researcher collects responses from only a sample of that population. Suppose a study needs to collect information about a specific mobile application. After sample collection, the researcher analyzes the data and discovers that most individuals in the sample use that specific mobile application. The sample proportion measures the number of individuals in a sample who either use or don't use the...
6.4K
Correlation and Causation
42.0K
Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
42.0K
Common Ion Effect
46.0K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
46.0K
Conservation of Small Populations
16.7K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.7K


