12 Min Indoor Upper Body & Core HIIT - No Equipment, Small Space

12-minute upper-body and core HIIT session using no equipment and minimal space. This workout combines dynamic upper-body movements like bear push-backs, standing shoulder presses, and dead-arm swings with lower-body and core work, including sprawls, roll-backs, and plank variations. The structure alternates between 40-second work intervals and brief recovery periods, flowing through 16 exercises that progressively target shoulders, core, glutes, legs, and arms. All movements can be performed indoors with just your bodyweight - no equipment or extra space required. The exercises range from compound movements like burpees and high-knee sprawls that demand full-body coordination, to isolated movements like plank shoulder taps and hand-push energy that burn specific muscle groups. The pace is intense and unforgiving, but each exercise can be modified to match your fitness level. Beginners can reduce range of motion, skip plyometric variations, or take longer rest breaks between exercises. More advanced athletes can lean into the intensity - explosive burpees, dynamic commando movements, and rapid arm work will push your conditioning hard. This is an ideal session when you're short on time but want a demanding upper-body and core workout that elevates your heart rate, builds endurance, and challenges multiple muscle groups. Chapters 0:00 Warmup: Trunk Twists 0:45 Squat to Alternating Overhead Side Bend 1:32 Ghost Rope 2:19 Sprawl + 6 High Knees 3:06 Cross Punches 3:51 Plank Shoulder Taps 4:34 Plank Butt Kick 5:21 Plank Jack Commando (2x) 6:04 Burpees 6:52 Roll Back to Alternating Kneel-Up 7:38 Bear Push Back 8:21 Standing Shoulder Press 9:05 Dead Arm Swings 9:51 Alt Diagonal Reach Up 10:35 Hand Pushes Energy 11:21 Cooldown: Arm and Shoulder Circles 12:00 Outro #shoulders #core #glutes #legs #arms #12min #hiit #noequipment #followalong