Amwal Al Ghad - 2013-01-03 10:18:29
The past year in fitness has been alternately inspiring, vexing and diverting, as my revisiting of all of the Phys Ed columns published in 2012 makes clear. Taken as a whole, the latest exercise-related science tells us that the right types and amounts of exercise will almost certainly lengthen your life, strengthen your brain, affect your waistline and even clear debris from inside your body’s cells. But too much exercise, other 2012 science intimates, might have undesirable effects on your heart, while popping painkillers, donning stilettos and sitting and reading this column likewise have their costs.
With New Year’s exercise resolutions still fresh and hopefully unbroken on this, day two of 2013, it now seems like the perfect time to review these and other lessons of the past year in fitness science.
First, since I am habitually both overscheduled and indolent, I was delighted to report, as I did in June, that the “sweet sport” for health benefits seems to come from jogging or moderately working out for only a brief period a few times a week.
Specifically, an encouraging 2012 study of 52,656 American adults found that those who ran 1 to 20 miles per week at an average pace of about 10 or 11 minutes per mile — my leisurely jogging speed, in fact — lived longer, on average, than sedentary adults. They also lived longer than the group (admittedly small) who ran more than 20 miles per week. More»