Many of us have sedentary jobs that involve sitting for long periods; even if you're very active and like to exercise, you might be neglecting a very important muscle group without even realizing it: your hip flexors.
These muscles are technically part of your core musculature and run along the front of your pelvis between your hips and thighs. Collectively, they quietly perform essential roles for stabilization in the background, and they need to be strong and active to help you avoid injury.