Posture incorporates more than just sitting or standing up straight, according to Yorks. Being upright is the optimal position for our bodies, placing the least amount of stress on our muscles, joints, and ligaments, she said. And having good posture helps us absorb shock, efficiently distribute our own weight and external weight across our bodies, and generate force for everyday activities.

It’s important to talk to a healthcare professional, like a physical therapist or your primary care doctor, before attempting these exercises, especially if you’re looking to do them on a soft surface, Yorks added, as your lower back could sag and you could potentially pull a muscle.

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