As they say, “everything in moderation.” Too much activity will lead to hip flexor pain, but too little activity will also lead to tightness and pain too. Sitting down for prolonged periods leaves your body in a constant state of hip flexion, causing discomfort and pain over time. To combat this, try standing up regularly throughout your day, at least ten minutes for every hour spent seated. A standing desk is beneficial in alleviating pain caused by a sedentary lifestyle as well.