Sit-Ups
These bring flashbacks from the Presidential Fitness Test in middle school, but they are actually great at working your core!
Push Ups
Like sit ups, these also bring back the sweaty feeling of middle school P.E., but they are perfect fro working your arm and core muscles simultaneously!
Burpees
One of the most dreaded exercises, burpees are as awful as they sound. However, despite the agony they induce, they are also great for your body. Whoever combined a push up, squat, and jumping jack will go down as the inventor of extreme pain, but also as the creator of a full-body, no-equipment workout.
Squats
Although not for the faint of heart (or those with chronic knee pain), the squat is one of the easier exercises in this list. All you have to do is bend your knees a few times. Before long, you will have a killer butt and thing muscles.
Lunges
A cousin of the squat, lunges focus more on your legs than your butt. Although not quite as harsh on your knees as a squat is, lunges do require lots of space.
Don't have any time to hit the gym? Really hate running? Only have one room you can exercise in? Have no fear! You can still get a workout without the treadmill. Here are five exercises that don't involve running.