Andalite
Elite Bodybuilder
andalite apart from my back not being arched how do u think this deadlift form is? YouTube - Deficit Deads 247.5 x 4 @ 15 years
Your back being arched is not the issue. It was arched enough.
Here are the issues:
1.) Your body starts moving before the bar. Observe your hips right at the beginning for this. This is almost on every rep.
2.) Your hips are at the level of your head. Remember my earlier post about hips being above the level of your knees and below the level of your head? You don't have that. You're set-up itself is at fault.
3.) Your knees lockout before your hips. Look at this @ 0.08 seconds in the video. Clearly visible how your back is extended while your knees are almost at lockout. This is bad because it puts the entire strain of the movement away from the hips (which is where it should be at) onto your lower back. It's like you're doing a supremely heavy hyper extension.
I have to say though: your form becomes slightly better on the last rep or two. But, on the whole, no, thats not how a deadlift should be. I know you're doing a deficit deadlift but the purpose of the deficit deadlift is to improve leg drive and if your hips are so high how can you hope to achieve that?