Physics question (Lat machine related)

[Schutzhund1]

Has anyone used this type of chest supported row machine?

My concern is that because of my long arms, in the fully contracted position there won't be very much stress on the lats.

Anybody have any ideas how I can calculate weather my lats are getting a consistent workout?

In my mind when the handles are pointing straight up the weight will be at a maximum resistance and anything past this point will decrease the resistance. So by the time I'm at a fully contracted position (Handles near my armpits) the amount of resistance is minimal.

Should I be doing the 45 degree chest supported row instead?

 

[BOOEY]

That type of exercise is mostly targeting the upper/middle back area, not the lats. A better variation of this exercise is called t-bar rows. Put one end of a barbell against a corner and the stack the other end with weights. Straddle the side with the weights with your back at a 45 degree angle and using a handle that you would use for cable rows, pull the weight towards your chest.

It's a much better variation, and I've seen dramatic differences in my back when I started doing it. Do it, do it now!

 

[cwc73]

I have used one. It allowed you to move the seat back to adjust for arm length. I dont have a clue about the physics of it though.

 

[The Shadow]

its adjustable for arm length..LOL

 

[6_pak]

For a complete back, all various angles need to be incorporated in your workout. This exercise machine will definitely hit your upper and mid back and your lats. But to completely isolate your lats do tbar rows, or closs grip cable rows.

 

[Schutzhund1]

Thanks for the replies.

My concern was that similar to a preacher curl, when the weight gets to a certain apex, the stress on the muscle dinished rapidly. Will this occur before I reach a full contraction with this machine?

I do T bar rows already (Deadlifts first, then pull ups, then either tbar rows or seated cable rows.) I was thinking of substituting the tbar rows or seated cable rows with this machine. It sounds like the consensus is that T bar rows are the best final movement for my back.