Targeting your iliopsoas, not your rectus abdominis, the lying straight leg raise is an isolation pull exercise that activates all hip flexor muscles.
Why Do I Have To Do So Many Leg Raises After Knee or Hip Surgery?
Lying Straight Leg Raise (Abdominals) – Fitness Volt
Diagnosing the Cause of Sciatica
Strength Training for Cyclists: 10 Best Exercises
Lying Straight Leg Raise Exercise Instructions And Video
Straight Leg Raise by Patricie K - Exercise How-to - Skimble
How to Do Side Leg Raises (Techniques, Benefits, Variations) - Steel Supplements
L14: INWARD CLAM HIPS STRAIGHT Teaching points - Evidence for Exercise
Vertical Leg Raise - Video Guide
Lying Leg Raises - Full Video Tutorial & Exercise Guide