This is the classic home exercise with a twist. To do Spartan push-ups, set your hands at 45 degree angles from each other: one underneath your shoulder like a standard push-up, and one behind, nearer to your pectoral line. Lower yourself down into a push-up, then explode upwards and switch your hand positions. Now, the hand in front should be whichever one started behind. Remember, safety first! If you feel like you might damage your wrist with the explosive switch, simply do a regular push-up in this position, and then switch your hands without the explosiveness once you’re back in your start position.