Lat pain and weighted belt

[AndrewLewis]

I've been having left lat pain on the days I do chins (70x5x3) and dips (130x5x3).
Have you ever observed someone getting lat pain from a weighted dip belt?

I stopped doing weighted dips and it seems to have correlated well.
Any information would be appreciated.



Other potentially relevant information:
Male, 27-years-old
BW: 213lb
Height: 5'9"

Last work out weights:
Deadlift: 490x2x3,
Squat 405x2x3,
Bench: 220x5x3,
Strict press: 135x5x3
(I LPed my upper body exercises from the 45lb, because I fucked up my shoulder and will likely need medical intervention at some point)

[Mark Rippetoe]

They bother my lat insertions at the shoulder too, so I can't do them weighted. Dips never bother my lats.

[Soule]

I’ve tweaked what I thought was my lat doing dips, but turned out to be serratus anterior.

[AndrewLewis]

They bother my lat insertions at the shoulder too, so I can't do them weighted. Dips never bother my lats.

It feels more like it's along the muscle belly toward the origin.

Like I said, it could just be a correlate. I can't think of a good reason why it would bother the muscle belly of the lat and not the erectors/spine.

[Mark Rippetoe]

The erectors are strong, and they are only in isometric contraction.

[AndrewLewis]

The erectors are strong, and they are only in isometric contraction.

I was thinking more because the weighted belt is pulling on a narrow band on my back - like being constantly pulled into lumbar hyperextension.
I don't see a reason why this would affect the muscle belly of my lat though.

[Mark Rippetoe]

I wasn't thinking in terms of the pressure of the belt, but rather the distal load on the lats. Maybe I don't understand the question.

[AndrewLewis]

You answered the original, but imprecise question.

The precise question is "Can you think of a reason why excessive mid/lower back muscle soreness (approximately the muscle belly of the lat) would correlate with heavy belt-weighted exercises such as the weighted dip and chin?"

Does that clarify my question?

[Mark Rippetoe]

I cannot. The only mechanism would be contact pressure, and that doesn't seem likely.

[AndrewLewis]

Alright. Thank you. It's probably just a correlate with something else causing it.