黑人和白人男性的运动能力和死亡率
Peter Kokkinos1, Jonathan Myers, John Peter Kokkinos
1Veterans Affairs Medical Center/Cardiology Department, 50 Irving St NW, Washington, DC 20422, USA. peter.kokkinos@med.va.gov
更高的运动能力显著降低了黑人和白人男性的死亡风险. 以代谢等价物 (METs) 衡量的身体状况改善强烈预测,在各种心血管健康状况中降低了全因死亡率.
科学领域:
- 心脏病学 心脏病学
- 预防医学 预防医学
- 运动生理学 运动生理学
背景情况:
- 运动能力是已知的死亡率预测因素,但在黑人群体中数据有限.
- 现有的研究主要集中在白人个体上,对其他种族群体的理解存在差距.
研究的目的:
- 调查男性退伍军人多元化的队列中运动能力和全因死亡率之间的关联.
- 为了确定运动能力对死亡率的预测值是否在黑人和白人之间有所不同.
主要方法:
- 一组6749名黑人和8911名白人男性退伍军人接受了跑步机运动测试.
- 根据达到的峰值代谢等价值 (METs) 来分类健康状况.
- 在平均7.5年的随访期间,追踪了所有原因的死亡率.
主要成果:
- 运动能力是死亡风险的最强预测因素,独立于其他临床因素.
- 每一次1-MET增加的运动能力都与13%的死亡风险降低有关.
- 运动能力较高的个体 (7.1-10 METs和>10 METs) 与<5 METs的人相比,死亡风险明显较低,不论种族或心血管疾病状况如何.
结论:
- 运动能力是黑人和白人男性全因死亡率的强大和一致的预测指标.
- 运动能力和死亡率之间的反向关系是分级的,并且在种族群体中表现出类似的影响.
更多相关视频
07:26Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
12:59Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
相关概念视频
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise and Cardiovascular Response
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...
Exercise and Muscle Performance
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...
Lung Capacity
Cardiac Output I:Effect of Heart Rate on Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
