Prevention is, understandably, a major concern when it comes to heart health. You will have a healthier heart as you age if you eat well and exercise. What happens, though, if you are already elderly and your heart is having problems? Will you benefit in any way from exercise?
As it happens, the answer might be in the affirmative.
“Because physical activity has physiological benefits for the heart, it can not only assist prevent, but also restore some of the earlier damage to the heart and blood vessels,” says Harvard Medical School’s Michael and Lee Bell Professor of Women’s Health, Dr. JoAnn Manson.
A study that was published in the journal Circulation on September 21, 2021, demonstrated that individuals with heart-related alterations that elevated their risk of heart failure benefited from a year-long exercise regimen.
The study participants had a condition known as left ventricular hypertrophy, which is a swelling of the heart’s left chamber. Its ability to pump blood effectively is hampered by this disease. Additionally, they had higher blood levels of cardiac biomarkers, which are specific molecules that suggest heart damage or a higher risk of heart failure. Heart failure with maintained ejection fraction is a particular kind of heart failure that frequently develops in people with several diseases. The purpose of the study was to determine whether exercise may enhance heart health in this circumstance.
46 individuals between the ages of 45 and 64 were recruited by the researchers, who then randomly allocated them to either a control group that practiced yoga, balance training, and light resistance exercises or a year of high-intensity exercise training.
The exercise group members utilized heart rate monitors, worked with a personal trainer, and received customized workout regimens depending on their fitness levels. At least three times a week, they engaged in 30 to 60 minutes of walking, swimming, or cycling. They employed a technique known as interval training, which has been demonstrated to produce greater gains in cardiovascular fitness when compared to other forms of exercise. It is switching between brief bursts of intense exercise and lower-intensity intervals during a session. Once or twice a week, the exercisers also engaged in weight training.
At the beginning of the study and again at the conclusion of the training program, each participant had cardiac imaging and tests intended to evaluate the flexibility of their heart muscle. After a year, the researchers discovered that the exercise program participants’ hearts had become less stiff and were more effective at pumping blood than those of the control group. This led the researchers to conclude that exercise training might help prevent heart failure, but they also noted that a year was insufficient to evaluate long-term results and that further research is required.
Physical activity and the heart
Given all the heart-related advantages of exercise, like lowering blood pressure, it is not surprise that the researchers discovered improvements, says Dr. Manson. “If you are already healthy, exercise can maintain you that way.” However, exercise can also help you increase blood flow, lower insulin resistance, reduce harmful inflammation within your body, and lose weight, she explains. “All of those things could assist alleviate heart stiffness.”
Additionally, studies have indicated that prolonged sitting and infrequent physical activity can negatively impact heart health. Sedentary lifestyles increase the risk of high cholesterol, diabetes, hypertension, and weight gain. According to Dr. Manson, these disorders raise the risk of atherosclerosis, heart attack, stroke, heart failure, and even atrial fibrillation, a form of irregular heartbeat. They are all connected to one another.
She claims that engaging in physical activity is “probably as close as we have come to a magic bullet for good health.” It can prevent the development of diabetes, obesity, and atherosclerosis by positively influencing a number of biological pathways and risk variables relatively early in the process. You will therefore be far less likely to have a heart attack or stroke.
According to her, regular exercise has numerous advantages even at the molecular level. It increases the cells’ capacity to react to insulin and can improve blood vessel function, such as by increasing the vessels’ capacity to dilate. Additionally, physical activity lowers inflammation in the body, tissues, and blood vessels.
How much and what kind?
According to Dr. Manson, a fitness regimen that incorporates both cardiovascular and strength training is heart-healthy. “Walking is often a wonderful option for most people, regardless of their health history,” says Dr. Manson. It is best to consult your doctor before beginning an exercise program if you have had a heart attack or are at high risk for cardiovascular issues. She cites a study that was published online on September 3, 2021, by JAMA Network Open, which indicated that individuals who walked 7,000 or more steps a day had a lower risk of dying young than those who did not.
2,110 volunteers between the ages of 38 and 50 were asked to wear tracking devices for seven days in a row. After being split up into low, moderate, and high step groups, they were monitored for an average of nearly 11 years. 72 persons perished during that period. In comparison to those in the moderate (7,000 to 9,999) or high (10,000 or more) daily step categories, the researchers discovered that those who took fewer steps—less than 7,000 per day—were more likely to pass away during the follow-up period. Death rates did not appear to be impacted by walking intensity.
Generally speaking, people should strive to walk for at least 30 minutes per day, which equates to 150 minutes of moderate-to-intense exercise every week. However, Dr. Manson advises aiming for more—nearly 45 minutes throughout the day—if you have a higher risk of cardiovascular disease because of risk factors like hypertension. Try to fit in 45 to 60 minutes a day if you are attempting to reduce weight. “It definitely does not have to be done at the same time.” She advises breaking it up into 10- to 15-minute workouts multiple times a day.
It is also advised to do strength training twice a week.
Additionally, make an effort to spend as little time as possible sitting down during the day. According to Dr. Manson, sitting for nine to ten hours a day has been connected to a higher risk of heart disease. Invest in a standing desk, walk while on the phone, or get up and move about every 30 to 60 minutes if you work at a computer.