Here is another Filthy Fifty Workout. This one focuses on the legs
50 Single Leg Deadlifts (per leg)
50 Calf Raises
50 Single Leg Skaters (per leg)
50 Burpees
50 Jumping Squats
50 Speed Skaters
50 Full Deadlifts (use heaviest weights possible)
50 Single Leg Bridge Lifts (per leg)
50 Situps
See how fast you can do the whole thing. If your legs feel strong repeat again.
Good Luck :D
Kristen