In the largest study performed to date to understand the relationship between habitual physical activity and physical fitness, Boston University School of Medicine, BUSM, researchers have found that higher amount of time spent performing exercise (moderate-vigorous physical activity) and low-moderate level activity (steps) and less time spent sedentary, translated to greater physical fitness.
“By establishing the relationship between different forms of habitual physical activity and detailed fitness measures, we hope that our study will provide important information that can ultimately be used to improve physical fitness and overall health across the life course,” explained corresponding author Matthew Nayor, MD, MPH, assistant professor of medicine.
He and his team studied approximately 2,000 participants from the community-based Framingham Heart Study who underwent comprehensive cardiopulmonary exercise tests (CPET) for the “gold standard” measurement of physical fitness. Physical fitness measurements were associated with physical activity data obtained through accelerometers (device that measures frequency and intensity of human movement) that were worn for one week around the time of CPET and approximately eight years earlier.
They found dedicated exercise (moderate-vigorous physical activity) was the most efficient at improving fitness. Specifically, exercise was three times more efficient than walking alone and more than 14 times more efficient than reducing the time spent sedentary. Additionally, they found that the greater time spent exercising and higher steps/day could partially offset the negative effects of being sedentary in terms of physical fitness.
According to the researchers, while the study was focused on the relationship of physical activity and fitness specifically (rather than any health-related outcomes), fitness has a powerful influence on health and is associated with lower risk of cardiovascular disease, diabetes, cancer and premature death. “Therefore, improved understanding of methods to improve fitness would be expected to have broad implications for improved health,” said Nayor, a cardiologist at Boston Medical Center.
I am always happy to pass along another example of how valuable my eat less; move more; live longer mantra is in daily practice.
Researchers have uncovered one more reason to get off the couch and start exercising, especially if you’re approaching your golden years. Among people over age 70, physical fitness was found to be a much better predictor of survival than the number of traditional cardiovascular risk factors in a study being presented at the American College of Cardiology’s 68th Annual Scientific Session.
While high blood pressure, high cholesterol, diabetes and smoking are closely linked with a person’s chance of developing heart disease, these factors are so common in older people that the total number of risk factors becomes almost meaningless for predicting future health, researchers said. The new study suggests doctors can get a better picture of older patients’ health by looking at how fit they are, rather than how many of these cardiovascular risk factors they have. Continue reading →
I remember 20 years ago when I was in the working world, I definitely lived a sedentary lifestyle. Long hours at the office, a child at home and all the aspects of family life made it difficult for me to exercise a lot. Vedging out in the evening in front of the TV proved a welcome relief from daily demands. In addition, my motivation was elsewhere. Now that I am retired that has all changed, but I understand if you may be where I was back then.
Here I am riding with Gabi. Cycling is a super form of exercise for both mind and body.
Blame it on a job change, a chronic health issue, or simply a loss of motivation: whatever took you away from your regular exercise routine has led to a sedentary lifestyle. But don’t assume you can jump back into the same exercise regimen you followed when you were younger. “Your body has aged, and things have changed,” says Dr. Clare Safran-Norton, clinical supervisor of rehabilitation services at Harvard-affiliated Brigham and Women’s Hospital.
Age-related physical changes aren’t always obvious. “We lose muscle mass and strength as we get older, and the muscles become less flexible and less hydrated,” says Dr. Safran-Norton. Arthritis weakens joints. And vision changes, neurological disease, joint pain, or problems inside the ear can throw off your balance. Continue reading →
I couldn’t resist this one. There are loads of great facts below. Here is just one that caught my eye. If you are 25 pounds overweight, you have nearly 5,000 extra miles of blood vessels through which your heart must pump blood. How’s that for a reason to get yourself together.