Rashad Jennings takes every precaution he can to keep his body in top shape necessary for an NFL running back.
He eats a gluten-free diet and sticks to organic foods. He stretches every night and has a regular routine of pilates, acupuncture, yoga and massage.
And when Jennings' long days of training camp are over instead of settling into a soft bed, he climbs into a hyperbaric oxygen chamber to sleep.
Jennings bought the oxygen chamber as a rookie instead of splurging for a car, thinking it would help keep him fresh and prolong his career.
The Oakland Raiders are counting on a healthy Jennings this season as the backup to Darren McFadden, who has never made it through an NFL season without an injury.