DRILL With left
elbow and forearm on floor and legs extended, place feet on a vibrating
Powerplate machine set at 30 hertz (or put feet on any platform, four inches
off the ground). Gripping a 25-pound weight against right hip, hold for 30
seconds. Switch sides. Four times each side. Davis also does a "linear
bridge," facing down with both forearms on ground, feet on Powerplate and a
45-pound weight on his waist. Four times. CORE FACTS Develops stability in the
hips and throughout the core. Says Richesson, "[Think of] the body as a
unit, with the midsection the hub of the unit."
Next Week, Part 3
Four NFL stars, each with an appetite for punishment, reveal their most
effective core exercises.
For more on Davis's training regimen, go to SI.com/players. Follow Davis and
the 49ers, as well as the NFL's other top rookies, throughout the season at