[XIVMagnus]

Sounds like you fixed your hip flexors, because thats been my issue lately. Besides having some back problems from sports + lifting, getting strength back in my hip flexors has been relieving my backpain the most. I kinda did the same thing with Mark Rippetoe's starting strength / guides on lifts. Which led me into powerlifting for maybe 1 year. Honestly its all great but I ultimately agree that yoga should be a fundamental for people. I've done MMA for years and moved into pure BJJ now, doing yoga and sports is a very underestimated benefit.

[randomopining]

What are the best ways to fix hip flexors? I've always had bad hip flexor activation even while running pretty fast for 800m.

[XIVMagnus]

What's been working for me is a series of exercises and stretches. I think what's working is the actual exercise rather than the stretch. I'll use bands while performing leg lateral raises and also lifting my knee to my chest (with bands as well). This way I'm actually forced to use my hip flexor muscles. Funny enough from my experience tight hip flexors are usually weak hip flexors that caused other parts of your body to compensate, which then causes you pain. Stretch wise, I do the standard pigeon pose, piriformis stretch, and butterfly stretch.