We’ve all seen videos of Olympic and world-class athletes undergoing rigorous testing on a treadmill. Their body is covered from head to toe in wires, dripping in sweat and wearing more hoses on their face than a scuba diver. All the while, the super athlete is maxing out the treadmill’s top speed for an audience of at least 8 lab-coat wearing experts, although the runner is wearing nothing more than a tight pair of shorts. So, when your physician recommended a stress test during your last check-up, it’s easy to imagine why you were a bit intimidated.
像世界上许多事情一样，您不能相信好莱坞向您展示的东西。我们与之交谈塞缪尔·恩泽克（Samuel Unzek），亚利桑那州Banner Health的心脏病专主頁(欢迎您)家医学博士，解释这一过程并减轻压力测试。
什么是压力测试？
“你看过电视上可能不是那种of stress test your doctor ordered,” commented Dr. Unzek. “You’re likely watching a series of other tests designed to measure an athlete’s max output under extreme pressure. It’s a much more comfortable experience for our patients.” A stress test is prescribed to evaluate your heart’s health. Some symptoms associated with heart disease and other issues are only seen during exercise, which is why treadmills are used for testing in some cases. Dr. Unzek explained three types of stress testing that he recommends for his patients.
Treadmill Stress Test
在此测试中，测量心率和血压，以确保您的心脏正常工作。您将在衬衫下穿一些二极管，以监视您的心电图或心脏电信号。根据使用哪种协议，最常见的条件会让您走路。每三分钟，跑步机速度和倾斜度将逐渐增加，从慢速步行到慢跑。这将是在做这次执行此操作的专家的监督下，并经过培训以处理任何类型的情况，以防发生任何事情。
超声心动图压力测试
Using high frequency sound waves (ultrasound), a picture of your heart will be taken at rest, before your test begins. Then, you will be asked to walk on a treadmill until a target heart rate is achieved, and then another set of images will be taken. Do not worry, if you cannot walk on a treadmill, the test can be done with a medication that simulates the effects of exercise. Your physician will review the results to ensure that the walls of your heart are flexing and functioning properly.
核应激测试
A nurse will inject a very small amount of radioactive “tracer” prior to the exercise and take some images. You will then be asked to walk on a treadmill until a target heart rate is achieved, and then another set of images will be taken. Do not worry, if you cannot walk on a treadmill, the test can be done with a medication that simulates the effects of exercise. The images will show where the tracer went in the heart muscle. Areas with little tracer may suggest there is a blockage. Areas with no uptake might suggest a previous heart attack.
Misconceptions and Fears
无论您是在游泳池里放松还是在日常锻炼中推动个人记录，您的心脏永远不会停止为您工作。了解您的心脏对压力的反应是评估和预测健康问题的重要一步。Unzek博士一再向我们保证，“心脏病迹象的压力测试绝不应该压力很大。”我们与他合作讨论了一些共同的问题：
“很多人会在看我吗？”
Contrary to what you may have seen, a stress test is a relatively private procedure. You will be in a room with a nurse and possibly with an imaging technologist. They will help you get set up and will communicate with you every step of the way. There is no two-way mirror, where a team of experts evaluate your running form with clipboards in hand. The records of your vitals are kept for later evaluation by your physician.
“Will I be pushed beyond my physical limit?”
目标心率将根据您的年龄，性别和其他重要属性选择。Unzek博士向患者保证，“我们的首要任务是确保您的安全和舒适。如果您说“停止”，我们会停下来。您将永远不会超出您的舒适度。
“I don’t feel comfortable working out.”
对于某些人来说，慢跑跑步机是很多要问的。Unzek博士评论说：“对于我的许多高级患者，我们使用一种药理学选择，可以模拟运动的效果，同时舒适地躺在床上。这是模仿运动的一种安全和控制的方式，同时消除了受伤或不适的风险。”
“How many machines and instruments will I be hooked up to?”
您不是中学科学实验，也不是针垫。根据您参加的测试类型，您将佩戴大约六个二极管（粘垫），并连接到机器上的小电线以监视您的生命力。有时，护士会使用相同的布袖子来表达血压。
“测试期间我会穿什么？”
如果您要运动，Unzek博士建议您通常穿的衣服 - 轻便的面料和运动鞋。唯一的规则不是凉鞋。虽然需要将某些二极管应用于您的皮肤，但欢迎您在上面穿一件衬衫。在药理测试的情况下，正常的街头服装很好。
Who Should Get a Stress Test?
Unzek博士描述了压力测试的理想候选者。“我建议对可能表现出心脏病早期迹象的人，例如呼吸急促或胸部不适。如果症状限制了您的正常活动，则可能需要像心脏导管插入术一样微创测试。
How much do you know about your heart’s health? If you have a history of heart disease in你的家人或者，如果您开始看到heart disease在您的日常生活中，查看我们的免费heart health risk assessment test或安排您的访问vwin.comac德赢官方首页 。无论是否需要压力测试，您都会知道您的heart is strong。
