A Simple Weekly Workout Could Significantly Improve Heart Health
A straightforward exercise regimen, done just once a week, might actually help restore your heart health by as much as 20 years, according to a prominent cardiologist.
Dr. Benjamin Levine, who teaches internal medicine and cardiology at the University of Texas Southwestern Medical Center, strongly supports the ‘Norwegian 4×4’ routine.
This high-intensity workout, reportedly adopted by the Norwegian ski team, requires you to push yourself to 90 to 95 percent of your maximum heart rate for four minutes, taking breaks between repeated sets. Specifically, you’ll do four, four-minute intervals in total, once a week.
Activities like running, biking, or rowing fit this model—it’s all about hitting your limit during those minutes.
After each four-minute effort, there’s a three-minute recovery period before starting again. Repeat this four times, and you’re set. Dr. Levine assures that even this single session weekly can yield significant benefits for your heart’s health.
To highlight the benefits of the Norwegian 4×4 method, Dr. Levine gathered 53 participants, averaging 53 years of age, and assigned them a fitness program over two years.
The only intense component of the regimen was the Norwegian 4×4, performed weekly.
Participants also engaged in one hour of a ‘fun’ activity each week—think dancing or sports—alongside a 30-minute strength training session and moderate exercise for two to three days, lasting at least 30 minutes each time.
By the end of the two years, these previously inactive middle-aged individuals showed marked improvements in their heart health.
Dr. Levine used heart catheterization, which provides insights into heart function, to assess the flexibility—or ‘youthfulness’—of their hearts. Remarkably, post-study, their heart conditions resembled those of individuals in their 30s.
As we age, the major artery, the aorta, tends to thicken and stiffen, leading to higher blood pressure and putting more strain on the heart, which can result in muscle thickening.
Dr. Levine noted that the findings were rather compelling, indicating that you can turn back some effects of a sedentary lifestyle by committing to a heart-healthy exercise routine during late middle age.
In a follow-up study with participants who had thickened aortas, typically at high risk for heart issues, the same workout plan was applied for one year. They demonstrated a similar enhancement in the elasticity of their heart muscles.
Dr. Levine concluded that regular exercise can indeed reverse some impacts of conditions like high blood pressure and might help delay more severe heart-related diseases.
Heart disease remains the leading cause of death in the US, according to the American Heart Association. In 2022, almost one million individuals died from related conditions, representing a fatality roughly every 30 seconds.
Compared to this, cancer claims about 600,000 lives annually, while dementia accounts for around 288,000 deaths. Researchers suggest that lower public awareness of heart disease, relative to cancer, might partly contribute to rising risks.
Furthermore, experts warn of an increase in risk factors related to heart disease. For instance, nearly half of adults in the US have high blood pressure, and a significant portion is overweight or obese. If current trends persist, a growing number of Americans may face obesity and hypertension by 2050.
Engaging in regular exercise can help lower the risk of heart and circulatory diseases by as much as 35 percent.
The US Physical Activity Guidelines recommend adults aim for either 150 minutes of moderate aerobic activity or 75 minutes of vigorous aerobic activity weekly, or a mix of both, ideally spread out over the week.
Dr. Levine emphasizes that ‘exercise should be a prescription for life.’ The significance of maintaining a healthy heart can’t be overstated.
He encourages everyone to integrate an exercise routine that they enjoy—whether it’s jogging, swimming, hiking, or dancing—stressing that what truly matters is getting moving.
