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関連する概念動画

Exercise and Muscle Performance01:27

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Exercise and Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Lifestyle Factors and Health01:20

Lifestyle Factors and Health

Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Obesity01:24

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...

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関連する実験動画

Updated: Jun 14, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
05:10

Multidisciplinary Approach to Obesity Management: A Case Report

Published on: May 30, 2025

身体活動と体重増加予防

I-Min Lee1, Luc Djoussé, Howard D Sesso

  • 1Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA. ilee@rics.bwh.harvard.edu

JAMA
|March 25, 2010
PubMed
まとめ

健康的な体重を維持するには,かなりの身体活動が必要です. 25未満のボディマス指数 (BMI) を有する女性で,毎日少なくとも60分の適度な運動に従事した女性は体重を維持し,他の女性は体重を増やしました.

科学分野:

  • 運動生理学とは
  • 公衆衛生は公衆衛生である.
  • 肥満に関する研究.

背景:

  • 長期的な体重増加を防ぐために必要な正確な身体活動の量は,依然として不確実です.
  • 現在の連邦政府のガイドラインでは,健康上の利点のために週150分 (7.5代謝相当 [MET] 時間) の中等強度の活動が推奨されています.

研究 の 目的:

  • 女性におけるさまざまなレベルの身体活動と長期的な体重変化の関係について調査する.
  • 典型的な食事を摂る女性の体重の変化を,身体活動のレベルに基づいて分析する.

主な方法:

  • 前向きなコホート研究では,1992年から2007年まで,34,079人の健康な米国女性を追跡した.
  • 身体活動 (MET時間/週) と体重は13年の間隔で報告されました.
  • 繰り返し測定回帰では,3年間隔で身体活動と体重の変化を分析した.

主要な成果:

  • 女性の体重は,研究期間中に平均2.6kg増加しました.
  • より高い身体活動レベル (≥21 MET時間/週) は,ボディマス指数 (BMI) <25の女性においてのみ,より少ない体重増加と関連していました.
  • BMI ≥25の女性は,身体活動と体重増加との間に有意な関連性を示さなかった.

さらに関連する動画

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats
06:28

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats

Published on: April 28, 2023

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

関連する実験動画

Last Updated: Jun 14, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
05:10

Multidisciplinary Approach to Obesity Management: A Case Report

Published on: May 30, 2025

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats
06:28

A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats

Published on: April 28, 2023

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

  • 13年間にわたる体重維持 (体重増加 <2.3kg) は,初期BMI <25の女性の13.3%で達成され,平均21.5MET時間/週 (約. 60分/日) である.
  • 結論:

    • 身体活動は,BMI <25の女性の体重増加の減少と関連しています.
    • 13年間にわたって正常な体重を維持するには,毎日約60分程度の中等強度の運動が必要でした.
    • BMI ≥25の女性では,身体活動と体重増加との間に有意な関連性は観察されなかった.