The Eternal Beach-Body Plan
Phase I - Week 4: Workout XI
Exercise IX: Straight-Knee Static Bridge
Sets: 2 Reps: Hold for 90 Seconds Rest: 20 Seconds
Get into pushup position and then bend your elbows 90 degrees and rest your weight on your forearms. Keeping your entire body in a straight line, hold the position for 60 seconds . That's one set.