The hanging leg sit-up, or leg raise, looks like a powerful ab exercise. But, it can actually overwork your hip flexors and fail to give you the abs you desire.
How to do sit-ups the right way, according to personal trainers
Core Stability Exercises Better Than Sit Ups (and your back!) PDF
Are hanging core exercises (on a pull-up bar) more effective than core exercises on the ground? - Quora
Sit-ups Are BAD For You - Chiropractic on Eagle, Dr. Jon Saunders
Decline Sit-Ups - Instructions, Information & Alternatives »
The Best Ab Exercise for Lower and Upper Abs
How to Do Hanging Sit-Up: Muscles Worked & Proper Form – StrengthLog
The 3 Best Ab Exercises for a 6 Pack - Untapped Supplement
Leg Lift Exercises for Lower Abs
I did a GHD sit-up every day for a week — here's what happened to my abs
Forget sit-ups — this kettlebell abs workout torches your whole core and arms with 5 moves
The 3 Best Ab Exercises for a 6 Pack - Untapped Supplement