Kneel on your mat with your thighs perpendicular to the floor and tops of your feet facing down. Bring your inner knees together. Slide your feet apart so they are slightly wider than your hips and press the tops of your feet evenly into the mat. Slowly sit down between your feet. Use your hands to turn the top of your thighs inward. Then, lean back onto your forearms and slowly lower torso to floor. Hold for at least 30 seconds.
Loop a resistance band either above your knees (least resistance), below your knees (medium resistance), or around your ankles (greatest resistance). Bend knees slightly with your feet hip-width apart. Step to the side until the band provides resistance, then slide your other foot over to re-create your original stance. Repeat this sidestepping movement for 10 to 15 feet in one direction (or as far as you can), and then cover the same distance in the other direction.
This pose is similar to seated forward fold, and provides the same benefits. It also stretches your groin. Assume the same starting position as the forward fold, but slide the sole of your left foot against your right inner thigh. Keeping your right foot flexed, lower your left knee as far as you can into a half-butterfly position. Walk your hands down the sides of your right leg as you fold forward as far as you can with your torso. Hold for 8-10 breaths, and then slowly rise back up. Switch legs and repeat.
You can strain or tear one or more of your hip flexors when you make sudden movements such as changing directions while running or kicking. Sports and athletic activities where this is likely to occur include running, football, soccer, martial arts, dancing, and hockey. In everyday life, you can strain a hip flexor when you slip and fall, for example.