Deadlift was weaker this week for some reason

[mikem25678]

Hi there, last week I achieved a 5 plate deadlift then attempted 500 and got it roughly to knee level. So far this year since January my deadlift went from 425 to 495 for my 1rm. I tried out a new bar this week a bit thicker but still a standard 45 lb bar, but I couldn't even budge 5 plates and struggled lifting 455 did I get weaker or do you think it was because I used a new bar?

[rectifryer]

The new bar might have less flex. Are you using chalk?

[SA249]

You could also be fatigued. The longer you go at this the further apart pr's become. If I were you I would pick a well known program written by someone who has been around a while (5/3/1, cube, 10/20/life, 5th set etc. they all will work), run the program AS WRITTEN, and I'd be willing to bet that when the time comes to try a new pr you'll smoke more than that 500.

[Bubbarossa]

Might need a deload week, when was your last one? Could be the bar, could have been just a crap day for you.

[_Aggression_]

You can't pull PRs every week. As other's have said, at some point the gains slow down. Could be a host of things; nutrition that day (or the day before), sleep, hydration, different bar, etc. Or maybe it just wasn't your day, that's all. I wouldn't get too worried.

[dleedle]

No way you lost that strength in a week's time. I'd guess it's probably recovery. It's fatigue masking your fitness. What does the rest of your training look like? Personally I used to squat twice per week, deadlift once per week. As my squat intensity has gradually creeped up, I've had to limit how often I go hard on deadlifts because squatting heavy and then deadlifting heavy within the same week is tough to recover from.

[RVAPump]

CNS gets hit pretty hard by the deadlift

[Yodums]

Testing your 1RM that often can be quite taxing on your CNS and progress overall. The only other guess is the bar itself. Most commercial gyms have ****ty bars that are not to spec, and even if the bar is off by 5 lbs, that'll be the difference in your ability to even break the floor. I have my own power bar at home and it's very, very different than the one at my commercial gym.

[pterry0404]

Op, you're fatigued. If cost your can't pull 500 the week after you pull 495. Take a deload. Don't pull full intensity every week. About an undulating periodization.