Chris Blattman

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Not everyone gets fit from Phys Ed?

In the combined strength-and-endurance-exercise program, the volunteers’ physiological improvement ranged from a negative 8 percent (meaning they became 8 percent less fit) to a positive 42 percent. The results were similar in the groups that undertook only strength or only endurance training. Some improved their strength enormously, some not at all. Others became aerobically fitter but not stronger, while still others showed no improvements in either area. Only a fortunate few became both fitter and more buff. As the researchers from the University of Jyvaskyla wrote with some understatement, “large individual differences” exist “in the responses to both endurance and strength training.”

From the Times Sunday Magazine. The academic paper is here. Very much worth investigating with more than 175 people.

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