Guys, I have serious hip flexor troubles...I have been exercising for about 10 years, and it's getting worse. My core workouts are extremely difficult if it involves raising the legs, or bike maneuvers or something similar. If I am just sitting at my computer, and try to adjust my legs, I feel like I can barely lift them, my hip flexors are so tight. I have tried stretching in every possible way after a workout, and am trying to work in more yoga, although if I have only 5 days a week to work out, I will sub weights or cardio for yoga. Does anyone else have this problem, or has anyone found something that works to relieve the tightness? Any advice is much appreciated!