Off-season SPARQ training / Darren Sharper -- Strength training / Terrell Owens -- Explosive speed program / Pittsburgh Steelers -- Joint warm-up, core stability, and on-field workout / Julius Peppers -- Prehab, core strengthening, and resistance training / Reggie Bush -- Off-season agility, strength, and flexibility training / Peyton Manning -- Functional sports performance training / LaDainian Tomlinson -- Pre-NFL combine speed work / Adrian Peterson -- Core and strength training / Dwight Freeney -- Summer conditioning program / Brian Urlacher.