Slide your feet into the padding and position your feet at roughly hip width apart, then position your arms evenly in front of you.
Start by leaning back and bending your knees until they're at roughly 90 degrees, then push through the heels to extend back to the start position. Tense your core to maintain a neutral spine throughout. Your knees should bend in line with the angle of your feet. Repeat for the desired repetitions.
Avoid rounding your back.