This 45-Minute Calorie-Burning Ab-Blast Is the Ultimate Flat-Belly Workout

Torch major calories with this cardio and abs-sculpting workout from Jeanette Jenkins, the Hollywood Trainer. The no-equipment workout mixes classic cardio moves like burpees and tuck jumps to raise your heart rate, with bodyweight exercises — planks, bicycles, and flutter kicks — to flatten and tone your abs. This workout will challenge you, but we provide modifications every step of the way. Press play and get ready to get your sweat on!