Look, I'm all about the jumping, sprinting, high-impact cardio when I'm exercising outside or in my gym's studio. But when it comes to working out in my apartment, when one wrong burpee could send me crashing into my downstairs neighbors' living room? Or when I wake up feeling achy, and the idea of a jump squat sends shivers down my spine? I need a different option.

Recently, I've gotten really into doing low-impact cardio workouts on YouTube. Even if you love your plyometric exercises such as burpees, star jumps, and jumping jacks, there's a place in your fitness routine for low-impact cardio. When those jumpy, intense moves are off the table -- whether because you're injured, tired, a beginner, coming back to working out after a hiatus, or just don't have the space -- low-impact workouts are a great alternative.

And if you think these low-impact cardio workouts are sweat-free, you'll be in for a rude awakening. All "low impact" means is that you always have some part of your body (usually a foot) on the floor, which makes the moves less jarring on the joints. though they're often confused, low impact doesn't mean low intensity; you can still get your heart pounding when doing low-impact cardio moves. You just won't be getting your knees pounding too.

Try one of the following low-impact cardio workout videos -- all from our award-winning YouTube channel, PS Fit -- to see for yourself; you're guaranteed to spike your heart rate and save your floorboards, while being gentle on your joints.