The bridge is great for improving hip mobility and strengthening your lower back, two things that any desk-bound worker can really benefit from.

Step 1
Lie on your back.

Step 2
Place your feet flat on the floor, hip-width apart, toes pointing forward, with your knees bent.

Step 3
Contract your abs.

Step 4
Push through your heels to lift your hips off the floor.

Source: Buzzfeed