The active hip flexor stretch is an effective way to warm up primary hip flexors by bringing the leg into hip extension.
- Stand with you feet in a staggered stance with hands on hips as shown.
- Tighten your abdominals and glutes.
- Slowly move forward by bending the left knee while keeping the upper body straight until a stretch is felt in the right hip.
- Hold for 1-2 seconds.
- Return to starting position.
- Perform 5 repetitions and switch legs.