Does P90X Really Bring It?
![Does P90X Really Bring It?](https://ik.imagekit.io/02fmeo4exvw/certifiednews/images/article/p90xfit_thmb.jpg?tr=w-1000)
By Joel Woldt, M.S., John P. Porcari, Ph.D., Scott Doberstein, M.S., Jeff Steffen, Ph.D., and Carl Foster, Ph.D., with Mark AndersWith more than 3 million copies sold, P90X has been the best-selling home exercise program for seven years in a row and has attracted legions of fans including celebrities, weekend warriors and stay-at-home moms. But is it really as effective as the infomercials claim? Exclusive ACE-sponsored research puts it to the test.
Read More