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Research shows resistance training is good for the heart – and it doesn’t take much

Research shows resistance training is good for the heart – and it doesn’t take much

Research shows resistance training is good for the heart – and it doesn’t take much

Lifting weights – or resistance training – for less than an hour a week may reduce your risk for a heart attack or stroke by 40 to 70 percent, according to a new Iowa State University study.

However, spending more than an hour in the weight room did not yield any additional benefit, researchers of the study published in Medicine and Science in Sports and Exercise found.

“People may think they need to spend a lot of time lifting weights, but just two sets of bench presses that take less than 5 minutes could be effective,” says DC (Duck-chul) Lee, associate professor of kinesiology.

The results – some of the first to look at resistance exercise and cardiovascular disease – show benefits of strength training are independent of running, walking or other aerobic activity. In other words, you do not have to meet the recommended guidelines for aerobic physical activity to lower your risk; weight training alone is enough.

Barriers to resistance training

The researchers recognise that unlike aerobic activity, resistance training is not as easy to incorporate into our daily routine. Lee says people can move more by walking or biking to the office or taking the steps, but there are few natural activities associated with lifting. And while people may have a treadmill or stationary bike at home, they likely do not have access to a variety of weight machines.

For these reasons, Lee says a gym membership may be beneficial. Not only does it offer more options for resistance exercise, but in a previous study Lee found people with a gym membership exercised more. While this latest study looked specifically at use of free weights and weight machines, Lee says people will still benefit from other resistance exercises or any muscle-strengthening activities.

“Lifting any weight that increases resistance on your muscles is the key,” Lee says. “My muscle doesn’t know the difference if I’m digging in the yard, carrying heavy shopping bags or lifting a dumbbell.”

Other benefits of strength training

Much of the research on strength training has focused on bone health, physical function and quality of life in older adults. When it comes to reducing the risk for cardiovascular disease, most people think of running or other cardio activity. Lee says weight lifting is just as good for your heart, and there are other benefits.

“Muscle is the power plant to burn calories. Building muscle helps move your joints and bones, but also there are metabolic benefits. I don’t think this is well appreciated,” Lee says. “If you build muscle, even if you’re not aerobically active, you burn more energy because you have more muscle. This also helps prevent obesity and provide long-term benefits on various health outcomes.”

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