The researchers found that among the twin pairs who had one person that was physically active and another that was sedentary, conditioning exercisers had a 56 percent reduced risk of death, and occasional exercisers had a 34 percent lower risk of death when compared to those that were sedentary. Those who reported exercising at least six times per month with an intensity corresponding to at least vigorous walking for a mean duration of 30 minutes were classified as conditioning exercisers, those who reported no leisure physical activity were classified as sedentary, and other subjects were classified as occasional exercisers. Greater disability was associated with a larger number of cigarettes smoked, less exercise per week and a higher body-mass. Like the JAMA reported, those with healthier lifestyles lived longer in addition to experiencing less disability. The authors state the implications for public health are important.
Primary prevention is a positive approach to reducing mortality and morbidity.
Some have feared that preventative measures may lead to an expanding population of frail, disabled persons. This study suggests instead that lower health risks will result, on average, in less lifetime disability. These studies reflect a trend in research. Individual lifestyle can effect the quality of life in later years. Like preparing for retirement, the sooner one gets the message the better.