The pushup is a great bodyweight exercise that hits not only your arms and chest but also gets a burn going in your core, not to mention the fact that you can perform it anywhere! The only downside is that we have all performed the same old up-and-down routine day after day, which can become a bit repetitive. Try these 5 Extreme Push Up Variations and diversify the muscle groups you’re hitting, taking your upper body muscle and strength training to the next level!