The New York Time’s Gretchen Reynolds recently compiled two new medical studies to help find The Right Dose of Exercise for a Longer Life.
No one is surprised to find that any amount of exercise is better than no exercise. Exercise like medicine is accepted to reduce your risks for premature death and diseases. A significant difference between medicine and exercise is that medicine comes with clear instructions. Current health and governmental organizations recommend 150 minutes of moderate exercise per week for proper health and fitness.
But the questions quickly rise, is the 150 minutes of moderate exercise the minimum? The average? Two new studies released in the JAMA Internal Medicine Journal hopes to answer those questions.
The first study from the National Cancer Institute, Harvard University, and other institutions collected information about people’s exercise routines from six very large surveys. Their survey collected data from more than 661,000 adults; many of the study’s subjects were also middle aged.
From this large collection of health and fitness data the researchers placed the subjects into different categories based on the time they exercising weekly. The groups ranged from those who did not exercise to subjects who exercised 25 hours per week or more. From their researchers compared 14 years worth of death records for the group.
Researchers found that those who met the recommended 150 minutes of exercise enjoyed a 31 percent less risk of dying during the 14-year-old period, compared with those that have never exercised. They were surprised to find that the optimum level was 450 minutes of moderate exercise per week, a little more than an hour per day. Those subjects reduced their chance of premature death by 39 percent. Those who exceeded 450 minutes per week the researchers found that their death rates never significantly declined.
The second study completed by Australian researchers surveyed 2000,000 adult’s health and exercise data. The Australian researchers went into much more detail about the type of moderate exercise their subjects performed. Again, they compared the surveys with death records. Researchers found that meeting the minimum exercise guidelines substantially reduced the risk of premature death. Although, they did find that subjects whom 30 percent of their weekly exercise time in vigorous activities were 9 percent less likely to prematurely die.
For further exercise tips and online resources visit Live Oak's Exercise resources section.
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