Mash Up Workout 60 Start with a treadmill warm up by running 1 mile at an easy pace. Phase 1: 5 Rounds of: 30 seconds on, 90 seconds off at 10 mph with 10 percent incline Phase 2: 7 Sets of 7 front squats with heavy dumbbells. Ex 60lbs Phase 3: 5 Sets of 10 pushups....