Tight hamstrings

Less weight?

>>40382329
Maybe, I do go near my max often.

>>40382267
Your hips might be tight. They are strongly related often

>>40382363
What do you suggest I do?

Obviously we need more information about you to make a correct determination, but I'll generalize for the sake of your thread:

Form's fucked up and you're doing more of a SL dead

You're lifting too heavy

Maybe take a video of yourself performing the lift so you can critique it later if you don't have someone to help.

>>40382379
I deadlift 4pl8 currently, but I have super T-Rex arms (5'8.5 wing span at 6'0)

The way I deadlift I'd imagine is fine? I do a lot more snatch grip deadlifts than conventional dead lifts and my form is good when my hamstrings aren't fried.

But when they are fried, my back rounds uncontrollably.

I don't know what other information to include?

Ab Machine
Back Extensions
Lying Hamstring Curls
Standing Hamstring Curls

You may want to consider doing the above.

>>40382409
I do planks and side bridges
I do back extensions every session

Are you suggesting I hit my hamstrings more directly?
>tfw they are already covered in stretch marks

leg press, hold it for a few seconds between each rep before you extend your legs

>stretch all muscles in the leg
>sit less
>squat more
>walk more
>stretch throughout the day
>micro breaks from desk work
>drink water
>eat veg
>cool down activity post workout

>>40382267
Sounds like your glutes aren't working properly and your body compensates by overloading your hamstrings, causing them to get tight (self-protection mechanism of muscles causes this) and obviously feel tired/overworked.

Do glute activation exercises (glute bridges and single leg glute bridges can be good for this, you should feel it in your ass and not your hamstrings) and learn how to use your glutes properly in deadlifts.

>>40382267
Stop stretching your hamstrings. Like the other anon suggested, your hips are probably tight. Start stretching them everyday and before you work out. Watch these:

https://www.youtube.com/watch?v=AXQUwHbzMvQ&index=16&list=WL

https://www.youtube.com/watch?v=AXQUwHbzMvQ&index=16&list=WL

>>40382267
An hero.
Be of one.
ASAP.

Couch stretch

>>40382405
Don't deadlift if you can't keep your back straight and neutral. You will hurt yourself. Back injuries are no joke.

>>40382267
Do you have an anterior pelvic tilt? That would keep your hamstrings tight by default, so stretching them would make it worse.

>>40382267
Foam roller. Massage. Stretch more and increase general flexibility. Heat, hot shower, bath, sauna.

Some people like stuff like tiger balm or white flower oil, Thai boxing liniment, etc.

Light exercise/activity in the hours and day after heavy lifts instead of just sitting around increases recovery time. Make sure you do your recovery right and get some carbs and plenty of water post workout.

>>40383937
this. I would bet that you, like many modern people, have a massive anterior pelvic tilt which puts your hamstrings in an elongated position and greatly reduces glute activation.