摄入与抵抗训练改善肌肉数量和质量在健康的中年和老年人:一个随机对照试验
Keiko Iemitsu1, Shumpei Fujie1, Masataka Uchida1
1Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu 525-8577, Japan.
Nutrients
|June 10, 2023
概括
将 Dioscorea esculenta (一种山) 与抵抗运动相结合,可以提高老年人的肌肉力量和质量. 这种干预措施改善了肌肉厚度,并比单独炼或迪奥斯科雷亚更有效地减少了肌肉纤维化标志物.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 老年学是指老年学的学科.
背景情况:
- 肌肉质量和质量随着年龄的增长而下降,跌倒风险增加.
- 抵抗运动和某些营养素显示出对肌肉健康的潜力.
- Dioscorea esculenta是一种传统的食物来源,具有潜在的健康益处.
研究的目的:
- 调查 Dioscorea esculenta 摄入量和抵抗训练对老年人肌肉健康的综合影响.
- 评估肌肉数量,质量和心脏代谢参数的改善.
- 为了评估对肌肉纤维化标记物的影响.
主要方法:
- 一个为期12周的双盲试验,涉及66名健康的中老年人和老年人.
- 四组:静止体-安慰剂,静止体-双色球,抵抗训练-安慰剂,抵抗训练-双色球.
- 阻力运动每周3次; Dioscorea esculenta每天2000毫克.
主要成果:
- 抵抗训练加上迪奥斯科雷亚组在直骨肌肉厚度和质量 (回声强度) 中显著改善.
- 此组还在5倍的坐立测试中表现更好,而不是静坐的安慰剂.
- 循环C1q水平,肌肉纤维化的一个标志物,在抵抗训练加上迪奥斯科雷亚组显着较低.
结论:
- 将 Dioscorea esculenta 与抵抗运动相结合可能为老年人肌肉数量和质量提供更好的好处.
- 这种协同方法可能是一个可行的策略,以打击与年龄相关的肌肉衰退.
- 对具体机制和长期影响的进一步研究是有必要的.
相关概念视频
01:27Exercise and Muscle Performance
1.5K
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...
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...
1.5K
01:20Exercise and Cardiovascular Response
871
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...
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...
871
01:24Muscle Recovery and Fatigue
2.2K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
2.2K
01:17Exercise and Cardiac Output
1.1K
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...
Sustained exercise increases the muscles' oxygen demand, which can be...
1.1K
01:25Energy Supply for Muscle Contraction
3.3K
Skeletal muscle fibers have the unique ability to switch between rest and contraction states, using different sources of ATP for energy. The contraction cycle and Ca2+ transport back into the sarcoplasmic reticulum for relaxation require significant ATP. However, the ATP reserves in muscle fibers are limited and can only sustain contractions for a few seconds. Additional ATP production becomes necessary for prolonged contractions. As a result, muscle fibers generate ATP through various sources,...
3.3K
01:26Exercise Stress Test
291
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
291