Resisted hip flexion: Stand facing away from a door. Tie a loop in one end of a piece of elastic tubing and put it around the ankle on your injured side. Tie a knot in the other end of the tubing and shut the knot in the door near the floor. Tighten the front of your thigh muscle and bring the leg with the tubing forward, keeping your leg straight. Return to the starting position. Do 2 sets of 15.
Hip hikers (also known as the pelvic drop) are great exercises to get your gluteal muscles working in a weight bearing position. To do the exercise, stand sideways with one foot on a step and the other hanging off. Keeping both knees straight, lower down your pelvis on one side so your foot moves toward the floor. Both knees should remain straight; the motion should come from your hip joint. Once your pelvis is lowered down, slowly raise it back up to the starting position. Repeat the exercise for 10 repetitions.
A sedentary lifestyle can lead to having weak and tight hip flexors as they are always in the shortened position. Tight hip flexors can lead to a limited range of motion, poor posture, lower back and hip pain, and even injuries. These muscles need to get a workout when you are standing and doing movements such as raising your leg to climb stairs, run, or ride a bicycle.