Lunges and Lungs Posted May 4, 2017 by cf1855 CrossFit 1855 – CrossFit Weightlifting Front Rack Lunge 50 ft Front rack walking lunge – build to a heavy Metcon (Time) 3 rounds for time: 10 front squats (155/105) 20 pushups 30 Russian KBS (70/53) Rx+: ring pushups